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 scales, and runs 12 hours on a set of two D batteries.
The RGA-412 displays 0 - 100% Gas for natural gas, 0 to 2000 ppm for CO/H2S and 0 - 40% oxygen. The % Gas scale can display peak and sustained bar hole readings. If you prefer % LEL as well as % Gas readings, please select the RGA-411.
