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Wide Range Frisker

Measures Alpha, Beta, Gamma on three most sensitive ranges

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Small three range Ratemeter with separable 2” diameter pancake probe. Reads out in counts per minute ( and mR/hr). Thin probe window is recessed and protected by sturdy stainless steel grill. Instrument will see alpha, beta and gamma radiation. Anti-saturation circuit will not fall below full scale in high fields. Tested to 100 R/hr. Sonalert with volume control gives audible rate indication.

Item Numbers
5250-0129 Wide Range Frisker

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  • 5 Ranges: 0-0.2, 2, 20, 200, 2000 mR/h
  • Measures Background Easily
  • Measures Alpha, Beta, Gamma on 3 Most Sensitive Ranges
  • Anti Saturation Circuit
  • Light Weight; Accurate
  • Upper Range to R/hr
  • One Handed Surface Monitoring
  • Detachable 2” Pancake Probe

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  • Ranges: 0-0.2, 2, 20, and 200 mR/hr (thin window 2” dia. P-15 external probe) 200, 2000 mR/hr (energy compensated – internal probe)
  • Indicator: In addition to meter indication, a red LED flashes once for each count of the detector.
  • Switch Positions: Rotary switch: OFF, x 1K, x 100, x 10, x 1, x 0.1
  • Battery Test switch: Push button.
  • Audio: Piezoelectric – 103 Db at1 ft. with volume control.
  • Detectors: Internal: Energy compensated detector +_20% 80 KeV-1.2 MeV, External: 2” dia. pancake GM with thin end window alpha, beta, gamma probe on one meter; detachable coil cord.
  • Anti-Saturation: Instrument will not fall below full scale in high fields. Tested to 100 times highest reading.
  • Meter: Rugged meter with recessed glass or lexan face and jeweled movement.
  • Probe Holder: Unique tongue and grove probe holder for one or two handed surface mounting.
  • OPTIONAL: Other units on meter readout such as SI, Sn/h, cpm, or cps.
  • Dual scale: mR/hr and cpm.
  • Available Accessories Include: Check Source and Holder, Shoulder Strap, Pelican Carrying Case, Other External GM or Scintillation Probes.

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  • Dimensions: 3” x 5.25” x 2.25” (7.6 x 13.3 x 5.7 cm) excluding handle and probe holder.
  • Weight: 1.75 lbs.; 28 oz. (800g); Shipping Weight: 3 lbs. (1350g)

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