1. The instrument has high sensitivity and also responds to environmental background
2. Low power consumption:< 2mW
3. Strong ability to resist electromagnetic interference

1. Detector: GM counter tube (compensated)
2. Measurement range: Cumulative dose equivalent: Hp（10）0.0μSv-99.99mSv；Dose equivalent rate: Hp（10）0.1μSv/h-99.99mSv/h
3. Relative error:< 15%（Cs-137）
4. Energy response: 50KeV-1.3MeV, with an error of ± 30%
5. Angular response: Reference 137Cs should not exceed ± 30% of the response in the calibration direction between 0ddd ° and 90ddd °
6. Alarm function: This instrument is currently equipped with fixed alarm thresholds of 50 μ Sv and 25 μ Sv/h. When the alarm threshold is exceeded, there will be an audible and visual alarm. When the counting tube is blocked, the alarm will continue to sound continuously, and the alarm sound intensity will be greater than 80dB at 30cm.
7. Power consumption: Two AAA type 1.5V alkaline batteries (No. 7 battery) with a power consumption of less than 2mW and continuous use for 720 hours.

8. Dimensions: 92mm (length) x 55mm (width) x 18mm (thickness)

Suitable for the protection and personal dose monitoring of workers in the fields of industrial non-destructive testing, isotope applications, nuclear industry, hospitals, railways, civil aviation, environmental protection, and other radioactive applications.