• Operates for 2 months continuously on a single charge • Detects combustible gases (LEL), hydrogen sulfide (H2S), carbon monoxide (CO) & oxygen (O2) • 1 Year calibration cycle saves test gas & valuable time • Infrared LEL sensor does not require oxygen to detect gas • Low maintenance cost - infrared LEL sensor is immune to poisons • Simple to use one button operation - large, easy to read screen • Lightweight & durable - alligator clip clamps on tight