EGC-301/311 Gas-Explorer II Natural Gas & CO Detector

Each detector has a built-in pump and comes with A-CAL and N-CAL firmware, metal gooseneck probe (GP-514), dust & water block filter (WF-501), set of batteries, carrying case (IC-501), and operating manual. Detector weighs 1.50 pounds (0.68 Kg.) has a three push-buttons, LCD display of 0 - 100% LEL, 0 - 100% GAS, 0 - 10,000 ppm GAS in 20ppm increments, and 0 - 2000 ppm CO. A set of two C batteries provides power. Bar Hole mode displays peak and sustained bar hole gas readings.

The EGC-301 auto ranges between %LEL and %GAS, while the EGC-311 always displays %GAS.