Personal Dosmeter

• The VM-R2000 adopts a new-generation, high-sensitivity, wide-detection-range room-temperature semiconductor detector—the cadmium zinc telluride (CZT) detector—providing excellent energy response and higher energy linearity;
• Single-button design for one-touch power-on, entering measurement mode immediately upon startup, making operation simple and convenient;
• Data linkage with a mobile app for intelligent measurement and smart management;*

Application:

• Personal dose rate alarm;
• Personal cumulative dose alarm;

• Dose rate: 0.01μSv/h–10mSv/h
• Cumulative dose: 0–10mSv
• X and γ energy range: 30KeV–1.5MeV
• Battery life: Fully charged, can operate continuously for 1 week
• Alarm mode: Sound + vibration

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Regulations on personal dose limits for occupational exposure:

1. "Specifications for Individual Monitoring of Occupational External Exposure" GBZ-128-2019

4.3.1 Routine monitoring cycles are generally one month and should not exceed three months at maximum.

6.1.2 The annual monitoring level recommended by this standard is an effective dose of 5mSv.

2. "Methods for Individual Dose Monitoring of Radiation Workers" GB 5294-85

Dose limits: The occupational exposure levels of any worker (adult) should be controlled not to exceed the following limits:

(a) Average annual effective dose over any consecutive 5 years < 20mSv;

(b) Effective dose in any single year < 50mSv;

(c) Annual equivalent dose to the lens of the eye < 150mSv;

(d) Annual equivalent dose to the extremities (hands and feet) or skin < 500mSv;