TMM-091 Tenmars Radiation Geiger Counter Monitor Gamma Beta Dose Meter Nuclear Dosage Dosimeter Alarm Device Taiwan Made

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This radiation monitor has a measuring range of 0.50 ~ 1400µSv/h and 50 ~ 140.0µRem/h, and displays the values in µSv/h and µRem/h on the LCD screen. This meter is easy to use. Just turn it on and get accurate reliable readings.

The Geiger Counter is designed to be sensitive to Beta (β) radiation and Gamma (γ) Radiation including x-rays.


  • Made in Taiwan
  • Built-In Geiger–Müller tube
  • Quick response to the radiation strength of Beta (β) and Gamma (γ) rays
  • Auto Ranging
  • Automatic detection, easy setting
  • Low battery indication
  • Bright LCD display
  • A beeper chirps with each radiation count
  • Audio alarm set function
  • Display units in µSv/h and µRem/h
  • Overload indication on display ("OL")


  • Display: 3 1/2 digit LCD
  • Sampling:
    • 10 second / times (<20μSv/h)
    • 1 second / times (>20μSv/h)
  • Measuring Range: 0.50 ~ 1400µSv/h or 50 ~ 140.0µRem/h
  • Unit Selection:
    • μSv/h
    • μRem/h
    • mRem/h
  • Alarm Function: Alarm set default to 0.50μSv/h; can set to 0~19.99μSv/h
  • Auto Power Off Function: set time default to 30 min; can set to 0~60min; 0 min disable auto power off
  • Power: 9V battery NEDA 1604, IEC 6F22 or JIS 006P
  • Battery Life: About 50 hours (Alkaline battery)
  • Accuracy: ±20% (Cesium-137)
  • Energy Dependency: 30Kev to 1.3Mev
  • Test Radiation: Beta (β) & Gamma (γ) rays
  • Size : 143 x 74 x 34mm (L x W x H)
  • Weight: approx. 220g

Set Includes:

  • 1x Radiation Monitor
  • 1x 9V Battery (Free)
  • 1x English User Manual
  • 1x Handy and Soft Carrying Pouch

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