TERRA-P

Built-in gamma, beta sensitive Geiger-Muller counter.

Automatic setting of measurement intervals and ranges.

Audio signaling of each registered gamma-quantum or beta-particle.

Programming of audio alarm threshold level of gamma radiation dose rate.

Liquid crystal display.

Two AAA batteries.

Four-level indication of battery discharge.

Shock-resistant body.

Small weight and dimension parameters.

 

Measurement ranges and main relative errors:

• Gamma and X-ray radiation ambient dose equivalent rate

0.1…999.9 µSv/h

±(25+2/H*(10))% , where H*(10) is a numeric value of measured DER equivalent to µSv/h

• Gamma and X-ray radiation ambient dose equivalent

0.001…9 999 mSv ±25%

• Beta-particles flux density with possible evaluation of surface contamination by beta radionuclides (90Sr+90Y)

10…100 000 1/(cm²×min)

Energy ranges of measurement and energy dependence:

• Gamma and X-ray radiation 0.05…3.0; ±25% MeV
• Beta radiation 0.5…3.0 MeV
• Measurement time intervals 5…70 seconds
• Battery life 6 000 hours
• Operating temperature range -10…+50 °С
• Weight 0.15 kg
• Dimensions 120×52×26 mm