QGM-4-4 Gas LEL,02,CO,H2S

1. Simple single button operation
2. Durable, grippy housing
3. Displays actual gas concentrations, TWA and STEL values
4. Adjustable alarm levels using the IR Link
5. Data log up to two months or more
6. Optical acoustic and vibrating alarms
7. Docking station available for rapid bump test and calibration