Section 20: Sniffer SOP - Revision history

Cvangemert: /* Analox */ added new website for HerdLab system

2026-03-20T09:53:14Z

Analox: added new website for HerdLab system

← Older revision		Revision as of 09:53, 20 March 2026
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	=== Analox ===		=== Analox ===
	[[File:PXL 20250722 143934376.jpg\|thumb\|343x343px\|HerdLab system, for all gasses.]]		[[File:PXL 20250722 143934376.jpg\|thumb\|343x343px\|HerdLab system, for all gasses.]]
	Analox is a company based in the UK, you can find their website [https://analoxgroup.com/ here.] They have developed the HerdLab system. This device can measure 6 different gasses. The measurement range for CH<sub>4</sub> is dependent on which variant of the sensor you choose, generally it will be 0-2.000 ppm, they also offer 0-1.000 ppm and 0-5.000 ppm. For CO<sub>2</sub> the range is also dependent on the variant of sensor you choose, generally it will be 0-20.000 ppm, they also offer 0-2.000, 0-5.000 and 0-50.000. This device can also measure oxygen (O<sub>2</sub>), hydrogen (H<sub>2</sub>), ammonia (NH<sub>3</sub>) and nitric oxide (NO), if needed. It uses a combination of NDIR, paramagnetic and electrochemical sensors to analyze the concentrations. The datasheet for this device can be found [[:File:Herd Lab Brochure - Final Version.pdf\|here]]. A short introductory presentation [[:File:Measuring Methane Emissions Introduction.pdf\|here]] with associated video to be found [https://www.youtube.com/watch?v=2O9cDKg94W0 here.]		Analox is a company based in the UK, you can find their website [https://analoxgroup.com/ here.] They have developed the [https://analoxgroup.com/product/herdlab/ HerdLab system]. This device can measure 6 different gasses. The measurement range for CH<sub>4</sub> is dependent on which variant of the sensor you choose, generally it will be 0-2.000 ppm, they also offer 0-1.000 ppm and 0-5.000 ppm. For CO<sub>2</sub> the range is also dependent on the variant of sensor you choose, generally it will be 0-20.000 ppm, they also offer 0-2.000, 0-5.000 and 0-50.000. This device can also measure oxygen (O<sub>2</sub>), hydrogen (H<sub>2</sub>), ammonia (NH<sub>3</sub>) and nitric oxide (NO), if needed. It uses a combination of NDIR, paramagnetic and electrochemical sensors to analyze the concentrations. The datasheet for this device can be found [[:File:Herd Lab Brochure - Final Version.pdf\|here]]. A short introductory presentation [[:File:Measuring Methane Emissions Introduction.pdf\|here]] with associated video to be found [https://www.youtube.com/watch?v=2O9cDKg94W0 here.]

	This system is originally developed to measure up to 6 bays in a herringbone system, at the same time. Thereby, HerdLab can be applied to multiple AMS systems at the same time and multiple bays in a rotary system too. Due to this possibility price range is more dynamic than for other devices included in the list. When using one system for one AMS the HerdLab falls into the medium price range for a sniffer. Price will change when you want to measure more gasses or more animals, for measuring in multiple AMS systems (at the same farm) or multiple bays the increase in costs would be low, as you already have the system in place. For more information please contact Adrian Howe ([Mailto:adrian.howe@analoxgroup.com adrian.howe@analoxgroup.com]).[[File:Arcoflex.jpg\|thumb\|151x151px\|ASCH001]]		This system is originally developed to measure up to 6 bays in a herringbone system, at the same time. Thereby, HerdLab can be applied to multiple AMS systems at the same time and multiple bays in a rotary system too. Due to this possibility price range is more dynamic than for other devices included in the list. When using one system for one AMS the HerdLab falls into the medium price range for a sniffer. Price will change when you want to measure more gasses or more animals, for measuring in multiple AMS systems (at the same farm) or multiple bays the increase in costs would be low, as you already have the system in place. For more information please contact Adrian Howe ([Mailto:adrian.howe@analoxgroup.com adrian.howe@analoxgroup.com]).[[File:Arcoflex.jpg\|thumb\|151x151px\|ASCH001]]

Cvangemert: Cvangemert moved page Sniffer SOP to Section 20: Sniffer SOP

2026-02-18T07:38:19Z

Cvangemert moved page Sniffer SOP to Section 20: Sniffer SOP

← Older revision	Revision as of 07:38, 18 February 2026
(No difference)

Cvangemert: reordered sniffers alphabetically

2026-02-11T13:48:56Z

reordered sniffers alphabetically

← Older revision		Revision as of 13:48, 11 February 2026
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	During the [[Section 20: Activities\|Denmark-The Netherlands project]] the Axetris methane sensor will be tested, this is the same methane sensor that the Agscent Air uses. It has been installed in the original Carltech v1 casing. Testing in the Air Quality lab has been completed for these devices and these sensors functioned as well as the other sensors tested. On-farm testing is still in progress.		During the [[Section 20: Activities\|Denmark-The Netherlands project]] the Axetris methane sensor will be tested, this is the same methane sensor that the Agscent Air uses. It has been installed in the original Carltech v1 casing. Testing in the Air Quality lab has been completed for these devices and these sensors functioned as well as the other sensors tested. On-farm testing is still in progress.
	[[File:Arcoflex.jpg\|thumb\|151x151px\|ASCH001]]
			=== Analox ===
			[[File:PXL 20250722 143934376.jpg\|thumb\|343x343px\|HerdLab system, for all gasses.]]
			Analox is a company based in the UK, you can find their website [https://analoxgroup.com/ here.] They have developed the HerdLab system. This device can measure 6 different gasses. The measurement range for CH<sub>4</sub> is dependent on which variant of the sensor you choose, generally it will be 0-2.000 ppm, they also offer 0-1.000 ppm and 0-5.000 ppm. For CO<sub>2</sub> the range is also dependent on the variant of sensor you choose, generally it will be 0-20.000 ppm, they also offer 0-2.000, 0-5.000 and 0-50.000. This device can also measure oxygen (O<sub>2</sub>), hydrogen (H<sub>2</sub>), ammonia (NH<sub>3</sub>) and nitric oxide (NO), if needed. It uses a combination of NDIR, paramagnetic and electrochemical sensors to analyze the concentrations. The datasheet for this device can be found [[:File:Herd Lab Brochure - Final Version.pdf\|here]]. A short introductory presentation [[:File:Measuring Methane Emissions Introduction.pdf\|here]] with associated video to be found [https://www.youtube.com/watch?v=2O9cDKg94W0 here.]

			This system is originally developed to measure up to 6 bays in a herringbone system, at the same time. Thereby, HerdLab can be applied to multiple AMS systems at the same time and multiple bays in a rotary system too. Due to this possibility price range is more dynamic than for other devices included in the list. When using one system for one AMS the HerdLab falls into the medium price range for a sniffer. Price will change when you want to measure more gasses or more animals, for measuring in multiple AMS systems (at the same farm) or multiple bays the increase in costs would be low, as you already have the system in place. For more information please contact Adrian Howe ([Mailto:adrian.howe@analoxgroup.com adrian.howe@analoxgroup.com]).[[File:Arcoflex.jpg\|thumb\|151x151px\|ASCH001]]

	=== Arcoflex ===		=== Arcoflex ===
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	When commercialized they aim to have the sniffer fall into the lower price range, for more information please contact Aniruddha (Ani) Desai ([Mailto:A.Desai@latrobe.edu.au A.Desai@latrobe.edu.au]).		When commercialized they aim to have the sniffer fall into the lower price range, for more information please contact Aniruddha (Ani) Desai ([Mailto:A.Desai@latrobe.edu.au A.Desai@latrobe.edu.au]).

	~~=== Analox ===~~
	~~[[File:PXL 20250722 143934376.jpg\|thumb\|343x343px\|HerdLab system, for all gasses.]]~~
	Analox is a company based in the UK, you can find their website [https://analoxgroup.com/ here.] They have developed the HerdLab system. This device can measure 6 different gasses. The measurement range for CH<sub>4</sub> is dependent on which variant of the sensor you choose, generally it will be 0-2.000 ppm, they also offer 0-1.000 ppm and 0-5.000 ppm. For CO<sub>2</sub> the range is also dependent on the variant of sensor you choose, generally it will be 0-20.000 ppm, they also offer 0-2.000, 0-5.000 and 0-50.000. This device can also measure oxygen (O<sub>2</sub>), hydrogen (H<sub>2</sub>), ammonia (NH<sub>3</sub>) and nitric oxide (NO), if needed. It uses a combination of NDIR, paramagnetic and electrochemical sensors to analyze the concentrations. The datasheet for this device can be found [[:File:Herd Lab Brochure - Final Version.pdf\|here]]. A short introductory presentation [[:File:Measuring Methane Emissions Introduction.pdf\|here]] with associated video to be found [https://www.youtube.com/watch?v=2O9cDKg94W0 here.]

	This system is originally developed to measure up to 6 bays in a herringbone system, at the same time. Thereby, HerdLab can be applied to multiple AMS systems at the same time and multiple bays in a rotary system too. Due to this possibility price range is more dynamic than for other devices included in the list. When using one system for one AMS the HerdLab falls into the medium price range for a sniffer. Price will change when you want to measure more gasses or more animals, for measuring in multiple AMS systems (at the same farm) or multiple bays the increase in costs would be low, as you already have the system in place. For more information please contact Adrian Howe ([Mailto:adrian.howe@analoxgroup.com adrian.howe@analoxgroup.com]).

	== Comparison of technical details of commercially available sniffers ==		== Comparison of technical details of commercially available sniffers ==

Cvangemert: Introduction and Q&A

2026-02-11T13:29:27Z

Introduction and Q&A

← Older revision		Revision as of 13:29, 11 February 2026
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	== Introduction ==		== Introduction ==
	This document is the report obtained from the presentations, talks, chats and discussions of the Zoom meetings on 23<sup>rd</sup> February 2023. In both meetings an introduction was made about the ICAR Feed&Gas Working Group, the objectives of the Working Group, including the revision of the guidelines (Section 20 - Recording Dairy Cattle Methane Emission for Genetic Evaluation) published two years ago. Moreover, the aim of the meeting was to share knowledge on Sniffer standard operating procedure including tips, tricks and trouble-shooting data recording using Sniffer.

	Accurate measurement of methane emissions in ruminants is crucial to develop robust national or international greenhouse gas emission inventories and to evaluate mitigation strategies for their reduction. Over years many instruments and techniques have been developed and used for research purposes. Between all instruments and techniques available, Sniffer method has assumed significance. Sniffer has been developed to measure and collect data about methane (CH<sub>4</sub>) and carbon dioxide (CO<sub>2</sub>) emissions in the breath of ruminants during milking and/or feeding. The feed bin might be in an automatic milking system (AMS) or in an automatic feeding system (AFS). Before considering all features, advantages and disadvantages of the system, it is important to remember that they have been originally designed to detect dangerous gas leaks. Breath-sampling methods are non-invasive because, once installed, animals are unaware of the equipment and animals are in their normal environment. Animals follow their normal routine, which includes milking and feeding, so no training of animals, handling or change in diet are required. Equipment is relatively cheap and running costs are negligible. In Sniffer method, gases are continuously sampled into a sampling tube installed in the feed bin or through. The other end of the sampling tube is connected to an infrared CH<sub>4</sub> and CO<sub>2</sub> concentration analyser. Data are collected every 1-5 seconds by the Sniffer.		Accurate measurement of methane emissions in ruminants is crucial to develop robust national or international greenhouse gas emission inventories and to evaluate mitigation strategies for their reduction. Over years many instruments and techniques have been developed and used for research purposes. Between all instruments and techniques available, Sniffer method has assumed significance. Sniffer has been developed to measure and collect data about methane (CH<sub>4</sub>) and carbon dioxide (CO<sub>2</sub>) emissions in the breath of ruminants during milking and/or feeding. The feed bin might be in an automatic milking system (AMS) or in an automatic feeding system (AFS). Before considering all features, advantages and disadvantages of the system, it is important to remember that they have been originally designed to detect dangerous gas leaks. Breath-sampling methods are non-invasive because, once installed, animals are unaware of the equipment and animals are in their normal environment. Animals follow their normal routine, which includes milking and feeding, so no training of animals, handling or change in diet are required. Equipment is relatively cheap and running costs are negligible. In Sniffer method, gases are continuously sampled into a sampling tube installed in the feed bin or through. The other end of the sampling tube is connected to an infrared CH<sub>4</sub> and CO<sub>2</sub> concentration analyser. Data are collected every 1-5 seconds by the Sniffer.

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	'''Q1. What’s the cost of the system?'''		'''Q1. What’s the cost of the system?'''

	A1. 10.~~000€ by Edimburgh Instruments + Duotec Sensors + Bramtech customization.~~		A1. Very dependent on which system and producer, you can see an indication for pricing in the comparison excel file. If you want an exact quote, please contact the companies.

	~~A2. 4.500€ by Tecnosens (Italy).~~

	~~A3. 3.100€ by Carltech Sniffer (~~the ~~Netherlands) (old generation). For new generation device we have not received a new pricing~~.

	'''Q2. How many animals per Sniffer?'''		'''Q2. How many animals per Sniffer?'''

	A1. ~~Not more than~~ 130 cows per ~~Sniffer.~~		Depending on where the sniffer is installed, it can measure as many animals as can visit that location. If an AMS can milk 130 cows per day, then the sniffer can measure 130 cows per day.

	~~A2. 1 Sniffer per AMS~~, ~~so no more than 60/65~~ cows per ~~AMS/Sniffer~~.

	'''Q3. How long does the experimental trial take?'''		'''Q3. How long does the experimental trial take?'''

	A1~~. We plan to continue for many years.~~		A1. For genetic evaluation purposes we plan to collect data for many years.

	A2. For genetic evaluation purposes we plan to collect data for many years.

	'''Q4. How do you identify animals in Sniffer?'''		'''Q4. How do you identify animals in Sniffer?'''

Cvangemert: made emails hyperlinks

2025-12-19T08:27:25Z

made emails hyperlinks

Cvangemert: /* Analox */ added picture

2025-12-17T10:01:27Z

Analox: added picture

← Older revision		Revision as of 10:01, 17 December 2025
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	=== Analox ===		=== Analox ===
			[[File:PXL 20250722 143934376.jpg\|thumb\|343x343px\|HerdLab system, for all gasses.]]
	Analox is a company based in the UK, you can find their website [https://analoxgroup.com/ here.] They have developed the HerdLab system. This device can measure 6 different gasses. The measurement range for CH<sub>4</sub> is dependent on which variant of the sensor you choose, generally it will be 0-2.000 ppm, they also offer 0-1.000 ppm and 0-5.000 ppm. For CO<sub>2</sub> the range is also dependent on the variant of sensor you choose, generally it will be 0-20.000 ppm, they also offer 0-2.000, 0-5.000 and 0-50.000. This device can also measure oxygen (O<sub>2</sub>), hydrogen (H<sub>2</sub>), ammonia (NH<sub>3</sub>) and nitric oxide (NO), if needed. It uses a combination of NDIR, paramagnetic and electrochemical sensors to analyze the concentrations. The datasheet for this device can be found [[:File:Herd Lab Brochure - Final Version.pdf\|here]]. A short introductory presentation [[:File:Measuring Methane Emissions Introduction.pdf\|here]] with associated video to be found [https://www.youtube.com/watch?v=2O9cDKg94W0 here.]		Analox is a company based in the UK, you can find their website [https://analoxgroup.com/ here.] They have developed the HerdLab system. This device can measure 6 different gasses. The measurement range for CH<sub>4</sub> is dependent on which variant of the sensor you choose, generally it will be 0-2.000 ppm, they also offer 0-1.000 ppm and 0-5.000 ppm. For CO<sub>2</sub> the range is also dependent on the variant of sensor you choose, generally it will be 0-20.000 ppm, they also offer 0-2.000, 0-5.000 and 0-50.000. This device can also measure oxygen (O<sub>2</sub>), hydrogen (H<sub>2</sub>), ammonia (NH<sub>3</sub>) and nitric oxide (NO), if needed. It uses a combination of NDIR, paramagnetic and electrochemical sensors to analyze the concentrations. The datasheet for this device can be found [[:File:Herd Lab Brochure - Final Version.pdf\|here]]. A short introductory presentation [[:File:Measuring Methane Emissions Introduction.pdf\|here]] with associated video to be found [https://www.youtube.com/watch?v=2O9cDKg94W0 here.]

Cvangemert: Added Analox

2025-12-17T09:41:15Z

Added Analox

← Older revision		Revision as of 09:41, 17 December 2025
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	Tecnosens is a company based in Italy, you can find their website [https://www.tecnosens.it/en here.] They have developed the MooLooger, currently there are two versions available, the MooLooger standard and the MooLogger advanced. The MooLogger has a measurement range of 0-5.000ppm for CH<sub>4</sub> and 0-50.000ppm for CO<sub>2</sub> and uses a NDIR sensor. Optionally this device can measure O<sub>2</sub> in the range of 0-25.000ppm. Currently the MooLogger is being used, on small or large scale, in Italy, Spain, Canada, USA, Switzerland and Uruguay. You can download the datasheet for this device [[Media:MooLogger Plus Oct 2024.pdf\|here]] and find more information on the MooLogger on the website [https://www.tecnosens.it/en/Tecnosens-products/moologger here.] They have multiple instruction video's available on their [https://www.youtube.com/playlist?list=PLR1KvTMU2thuf-xpkTuHM6fs_WRVtwoz6 youtube channel.] For this device a multiplexer is available to use one MooLogger and measure in multiple AMS.		Tecnosens is a company based in Italy, you can find their website [https://www.tecnosens.it/en here.] They have developed the MooLooger, currently there are two versions available, the MooLooger standard and the MooLogger advanced. The MooLogger has a measurement range of 0-5.000ppm for CH<sub>4</sub> and 0-50.000ppm for CO<sub>2</sub> and uses a NDIR sensor. Optionally this device can measure O<sub>2</sub> in the range of 0-25.000ppm. Currently the MooLogger is being used, on small or large scale, in Italy, Spain, Canada, USA, Switzerland and Uruguay. You can download the datasheet for this device [[Media:MooLogger Plus Oct 2024.pdf\|here]] and find more information on the MooLogger on the website [https://www.tecnosens.it/en/Tecnosens-products/moologger here.] They have multiple instruction video's available on their [https://www.youtube.com/playlist?list=PLR1KvTMU2thuf-xpkTuHM6fs_WRVtwoz6 youtube channel.] For this device a multiplexer is available to use one MooLogger and measure in multiple AMS.

	The MooLooger falls in the lower price range for a sniffer, for more information please contact Greta Bonacina (gbonacina@tecnosens.it)		The MooLooger falls in the lower price range for a sniffer, for more information please contact Greta Bonacina (gbonacina@tecnosens.it).

	=== Nikira labs ===		=== Nikira labs ===
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	The research institute, as a part of La Trobe university based in Australia, has developed a sniffer inhouse, you can find their website [https://www.latrobe.edu.au/ here.] They are still working on commercializing their sniffer device.		The research institute, as a part of La Trobe university based in Australia, has developed a sniffer inhouse, you can find their website [https://www.latrobe.edu.au/ here.] They are still working on commercializing their sniffer device.

	When commercialized they aim to have the sniffer fall into the lower price range, for more information please contact Aniruddha (Ani) Desai (A.Desai@latrobe.edu.au)		When commercialized they aim to have the sniffer fall into the lower price range, for more information please contact Aniruddha (Ani) Desai (A.Desai@latrobe.edu.au).

			=== Analox ===
			Analox is a company based in the UK, you can find their website [https://analoxgroup.com/ here.] They have developed the HerdLab system. This device can measure 6 different gasses. The measurement range for CH<sub>4</sub> is dependent on which variant of the sensor you choose, generally it will be 0-2.000 ppm, they also offer 0-1.000 ppm and 0-5.000 ppm. For CO<sub>2</sub> the range is also dependent on the variant of sensor you choose, generally it will be 0-20.000 ppm, they also offer 0-2.000, 0-5.000 and 0-50.000. This device can also measure oxygen (O<sub>2</sub>), hydrogen (H<sub>2</sub>), ammonia (NH<sub>3</sub>) and nitric oxide (NO), if needed. It uses a combination of NDIR, paramagnetic and electrochemical sensors to analyze the concentrations. The datasheet for this device can be found [[:File:Herd Lab Brochure - Final Version.pdf\|here]]. A short introductory presentation [[:File:Measuring Methane Emissions Introduction.pdf\|here]] with associated video to be found [https://www.youtube.com/watch?v=2O9cDKg94W0 here.]

			This system is originally developed to measure up to 6 bays in a herringbone system, at the same time. Thereby, HerdLab can be applied to multiple AMS systems at the same time and multiple bays in a rotary system too. Due to this possibility price range is more dynamic than for other devices included in the list. When using one system for one AMS the HerdLab falls into the medium price range for a sniffer. Price will change when you want to measure more gasses or more animals, for measuring in multiple AMS systems (at the same farm) or multiple bays the increase in costs would be low, as you already have the system in place. For more information please contact Adrian Howe (adrian.howe@analoxgroup.com).

	== Comparison of technical details of commercially available sniffers ==		== Comparison of technical details of commercially available sniffers ==

Cvangemert: /* Tecnosens */

2025-11-25T11:35:10Z

Tecnosens

← Older revision		Revision as of 11:35, 25 November 2025
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	=== Tecnosens ===		=== Tecnosens ===
	Tecnosens is a company based in Italy, you can find their website [https://www.tecnosens.it/en here.] They have developed the MooLooger, currently there are two versions available, the MooLooger standard and the MooLogger advanced. The MooLogger has a measurement range of 0-5.000ppm for CH<sub>4</sub> and 0-50.000ppm for CO<sub>2</sub> and uses a NDIR sensor. Optionally this device can measure O<sub>2</sub> in the range of 0-25.000ppm. Currently the MooLogger is being used, on small or large scale, in Italy, Spain, Canada, USA, Switzerland and Uruguay. You can download the datasheet for this device [[Media:MooLogger Plus Oct 2024.pdf\|here]] and find more information on the MooLogger on the website [https://www.tecnosens.it/en/Tecnosens-products/moologger here.] For this device a multiplexer is available to use one MooLogger and measure in multiple AMS.		Tecnosens is a company based in Italy, you can find their website [https://www.tecnosens.it/en here.] They have developed the MooLooger, currently there are two versions available, the MooLooger standard and the MooLogger advanced. The MooLogger has a measurement range of 0-5.000ppm for CH<sub>4</sub> and 0-50.000ppm for CO<sub>2</sub> and uses a NDIR sensor. Optionally this device can measure O<sub>2</sub> in the range of 0-25.000ppm. Currently the MooLogger is being used, on small or large scale, in Italy, Spain, Canada, USA, Switzerland and Uruguay. You can download the datasheet for this device [[Media:MooLogger Plus Oct 2024.pdf\|here]] and find more information on the MooLogger on the website [https://www.tecnosens.it/en/Tecnosens-products/moologger here.] They have multiple instruction video's available on their [https://www.youtube.com/playlist?list=PLR1KvTMU2thuf-xpkTuHM6fs_WRVtwoz6 youtube channel.] For this device a multiplexer is available to use one MooLogger and measure in multiple AMS.

	The MooLooger falls in the lower price range for a sniffer, for more information please contact Greta Bonacina (gbonacina@tecnosens.it)		The MooLooger falls in the lower price range for a sniffer, for more information please contact Greta Bonacina (gbonacina@tecnosens.it)

Cvangemert: /* C-lock */

2025-11-25T11:33:55Z

C-lock

← Older revision		Revision as of 11:33, 25 November 2025
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	The simple scan falls into the higher price range for a sniffer, for more information please contact Robert Whittington (rwhittington@c-lockinc.com)		The simple scan falls into the higher price range for a sniffer, for more information please contact Robert Whittington (rwhittington@c-lockinc.com)

			This product has been discontinued by the manufacturer.
	[[File:Gasera.png\|thumb\|181x181px\|Gasera one pulse]]		[[File:Gasera.png\|thumb\|181x181px\|Gasera one pulse]]

Cvangemert: /* Agscent */

2025-10-20T07:04:10Z

Agscent

← Older revision		Revision as of 07:04, 20 October 2025
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	=== Agscent ===		=== Agscent ===
	Agscent is a company based in Australia, you can find their website [https://agscent.com/ here.] They have developed the Agscent Air, current model: GHG 2100. This device uses a TDL (Tunable Diode Laser) sensor for CH4 and a NDIR (Non-Dispersive InfraRed) sensor for CO2. With a measurement range of 0-20.000ppm for CO2 and 0-40.000ppm for CH4. The datasheet for this device can be downloaded [https://agscent.com/wp-content/uploads/2023/09/Agscent-GHG-2100-tech-flyer.pdf here] and you can find the device on the website [https://agscent.com/products/agscent-air/#air-ghg here]. Currently this device is used in Australia and the USA. They have also developed the agscent x optiweigh, which combines the sniffer sensor with a weighting station for in the pasture. The datasheet for this device can be downloaded [https://agscent.com/wp-content/uploads/2023/09/Agscent-Optiweigh-flyer.pdf here] and you can find the device on their website [https://agscent.com/products/agscent-air/#air-optiweigh here]. Currently these combined devices are being used in Australia. At the State of the Science summit in 2025 ~~initial findings from a validation study for the Agscent x Optiweigh were presented~~. You can find the poster [[:File:ADSA 2025 NS ed.pdf\|here]] and the abstract [[:File:Abstracts BOOK 2025 20250624-1249.pdf\|here]], number 1155. A preliminary paper on a follow-up study can be found [[:File:Reyes et al. - Enteric methane (paper) ~~Summary~~.pdf\|here.]]		Agscent is a company based in Australia, you can find their website [https://agscent.com/ here.] They have developed the Agscent Air, current model: GHG 2100. This device uses a TDL (Tunable Diode Laser) sensor for CH4 and a NDIR (Non-Dispersive InfraRed) sensor for CO2. With a measurement range of 0-20.000ppm for CO2 and 0-40.000ppm for CH4. The datasheet for this device can be downloaded [https://agscent.com/wp-content/uploads/2023/09/Agscent-GHG-2100-tech-flyer.pdf here] and you can find the device on the website [https://agscent.com/products/agscent-air/#air-ghg here]. Currently this device is used in Australia and the USA. They have also developed the agscent x optiweigh, which combines the sniffer sensor with a weighting station for in the pasture. The datasheet for this device can be downloaded [https://agscent.com/wp-content/uploads/2023/09/Agscent-Optiweigh-flyer.pdf here] and you can find the device on their website [https://agscent.com/products/agscent-air/#air-optiweigh here]. Currently these combined devices are being used in Australia. Validations for the combined and standalone devices were conducted by multiple institutions, you can find a summary [[:File:Agscent Air GHG Validation Case Study 2025.pdf\|here.]] Preliminary results of one of these validation studies was presented at the State of the Science summit in 2025. You can find the poster [[:File:ADSA 2025 NS ed.pdf\|here]] and the abstract [[:File:Abstracts BOOK 2025 20250624-1249.pdf\|here]], number 1155. A preliminary paper on a follow-up study can be found [[:File:Reyes et al. - Enteric methane (paper).pdf\|here.]] The report for one of the other validations can be found [[:File:Report Agscent 4-2024 external.pdf\|here.]]

	The Agscent Air falls into the middle price range for a sniffer, for more information please contact Daniela Carnovale (daniela@agscent.com).		The Agscent Air falls into the middle price range for a sniffer, for more information please contact Daniela Carnovale (daniela@agscent.com).