The ARM – RX is a Rate Meter that detects Golden Engineering pulse X-Ray and Gamma Ray radiation. The ARM – RX Rate Meter provides two preset and one fixed 500 mR/h alarm level that presents a continuous audible and vibrating alarm when exceeding alarm levels.


Key features for the Rate Meter include:

  • Select Golden Engineering Pulse X-Ray source
    • XR150
    • XR200
    • XRS3
    • XRS4
  • Two settable and selectable alarm levels
  • Read out in either Rems or Sieverts

Hardware Specifications:

  • Detectors
    • Si Diode
    • GM Tube
  • Sensitivity
    • 40 uR/h – 180 R/h

Hardware Specifications

Set up time Seconds to functionality
Battery Details Low battery indicator lasts 3 months on a 9 volt Lithium battery
Operating Temperature -40° C to + 75° C
Sturdy & Reliable Withstands 3′ drop to concrete floor
Humidity Up to 100%
Altitude 40,000 ft.
Physical Dimensions 4.39 in. (L) x 2.37 in. (W) x 1.5 in. (D)
Detector Dual GM tube type Si Diode
Detector Range 2 mR/hr to 6 R/hr
Gamma Ray Response = +/- 10%
X-ray Response = +/- 10%
LCD Display Readout Updated every second