Handheld Radioisotope Detector

PKI 8240Print

The PKI 8240 is a complete, portable, digital gamma spectrometer and dose rate measurement device for all members of:

  • Custom and border security
  • Civil defence
  • Police and military
  • Metal industries
  • Nuclear medicine etc.

It features a digital multi-channel analyser, amplifier, high voltage power supply and memory embedded in a lightweight, easy to use device. In standard configuration the PKI 8240 comes with an integrated 137CS source of about 500 Bq (15nCi) for calibration and stabilisation. Optionally a 3He neutron detector can be installed. Its main benefits are detection, location, measurement and identification of radionuclides, automatic calibration and continuous stabilisation, digital signal processing plus isotope ID based on template matching. All these functions are easy to operate by just two modes and a 3 button operation:

a) EASY MODE (automatic mode): dose rate, finder and isotope identification parameters are password protected.

b) EXPERT MODE: full functionality of all features incl. access for changing parameters/ settings.


  • Detector type: NaI(Tl)
  • Shaping: Digital Filter
  • Resolution: 7% to 7.5% at 662 keV (typical)
  • Throughput rate: > 100.000 cps
  • Energy range: 15 kV to 3 MV
  • Operating time: 10 hours with 2500 mAH NiMH rechargeable battery in dose rate mode
  • Dimensions: 255 x 93 x 81 mm
  • Weight: approx. 1250 g incl. batteries and NaI(Tl) detector
  • Operating temperature: -15°c to + 55°C
  • Accessories AC adaptor for stationary use and recharging power pack plus, RS232 and USB cables and connector box, holster, carrying case, optionally: earphones