Clip Single Gas Detector, Hydrogen Sulfide, Surecell, 10 15 ppm Alarm Setting ORS NASCO 2000 psi) Versatile anchor can be 2000 psi) Versatile anchor can be installed on a vertical wall or overhead for versatility Mechanical expansion allows for immediate attachment Can be installed in a bottomless hole to allow for the insert to be driven flush with the surface after use highly visible or battery recharging replacement Wide angle flash which alerts simultaneously with audible and vibrating alarm Automatic logging of the 35 most recent gas events Compatible with Fleet Manager II Software One button operation Operates up to two years use without calibration