ZELP launches wearable device to accurately measure cattle methane emissions in real-world conditions

London-based ZELP introduces ZELP Sense, a pioneering wearable device aimed at providing precise, real-time methane emissions data from individual cattle, addressing longstanding gaps in livestock climate monitoring.

London-based ZELP has moved from methane reduction into measurement with the launch of ZELP Sense, a wearable device designed to capture emissions from individual cattle in commercial conditions. Announced on 26 August, the system is intended to address a long-standing weakness in livestock climate data: most current inventories rely on models, chamber studies or small samples that are then scaled up across herds.

According to ZELP, the device samples air close to the cow’s nostrils, transfers data automatically and feeds results into a mobile-optimised application. The company says the aim is to make real-world emissions monitoring more affordable and practical for farmers, researchers, governments and companies assessing supply-chain emissions.

The launch also reflects growing pressure on agriculture to produce verifiable methane data as feed additives, breeding programmes and other mitigation strategies come under closer scrutiny. ZELP says the system has been developed with co-funding from the Global Methane Hub’s Enteric Fermentation R&D Accelerator and has already undergone validation work, including chamber testing that it says shows less than 10% error versus respiration chambers.

The company says ZELP Sense is available to order, with deliveries expected in the second half of 2026, offered on a pay-as-you-go basis for data services.