Name: RKI GasWatch 3 Wearable Gas Detector
Brand: RKI Instruments
SKU: 72-0012
Price: 153.75 USD
Availability: InStock

The RKI GasWatch 3 is the world's smallest single- or dual-gas monitor, worn like a wristwatch or clipped to a collar with its 360° alligator clip. Electrochemical and galvanic-cell sensors detect O2, H2S, CO, H2-compensated CO, or a combination CO/O2 unit, and a field-replaceable CR2450 lithium coin cell powers the unit for up to 4,000 hours depending on configuration.

The rugged, IP66/68-rated housing is intrinsically safe (ATEX/IECEx Ex ia IIC T4 Ga) and backed by a 3-year warranty (2 years on the O2 sensor). No display or buttons are needed for day-to-day use — the GasWatch 3 runs maintenance-free once activated, making it a low-cost option for personal gas monitoring at scale.

World's smallest single- or dual-gas wearable monitor
Worn like a wristwatch or clipped with 360-degree alligator clip
Electrochemical and galvanic-cell sensors, no display or buttons needed
Field-replaceable CR2450 lithium coin cell, up to 4,000-hour runtime
IP66/68 rated, intrinsically safe (ATEX/IECEx Ex ia IIC T4 Ga)
3-year warranty (2-year O2 sensor)

Low-cost personal gas monitoring at scale
Refinery and petrochemical facility personal protection
Sewage treatment and wastewater plant safety
Fire department and hazmat response
Tunnel and mining confined-space monitoring
Chemical plant personal exposure monitoring

$153.75

Quantity

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ENVIRONMENTAL SAMPLING EQUIPMENT

RKI GasWatch 3 Wearable Gas Detector

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