QRAE3 PGM-2500 4 Gas Monitor

The QRAE 3 is a durable and versatile diffusion or pumped one-to-four gas monitor for detection of combustibles, oxygen, hydrogen sulfide, carbon monoxide, sulfur dioxide and hydrogen cyanide and other gases. Standard features include easy-to-change battery packs, easy access to sensors, internal vibrating alarm, loud 95dB audible alarm, and a water-resistant IP-65 case design.
The rechargeable Lithium-ion battery delivers up to 14 hours of continuous operation in non-wireless diffusion mode.