Each detector has a built-in pump and comes with automatic calibration (A-CAL) firmware, shoulder strap (SS-301), standard probe (SP-306), dust & water block filter (WF-301), straight hose (QH-042), set of batteries, short guide, and operating manual. Detector weighs 3.2 pounds (1.45 Kg.) has a rotary switch selectable LED display, and runs 12 hours on a set of two D batteries.
The RGC-311 displays 0 - 100% Gas, and 0 - 2000 ppm CO. The % Gas scale can display peak and sustained bar hole gas readings. If you prefer natural gas readings as % LEL and % Gas, please select the RGC-301.
