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Radiation Detected: Gamma and X-ray (35 keV to 3 MeV)
Detector: Silicon semiconductor
Measurement and Display Range:
Accumulated Dose: 0.001 mSv to 999.9 mSv
Dose Rate*: 0.001 mSv/h to 999.9 mSv/h
Accumulated dose data is automatically deleted when the Model 23-1 is switched ‘On’.
Display: 4-digit OLED with indicators for dose, dose rate, operating time, and alarm
Accuracy: ≤ ±10% (0.01 to 999.9 mSv (1.0 mrem to 99.99 rem), 137Cs)
Energy Response: ≤ ±20% (60 keV to 1.5 MeV, 137Cs)
Angular Response: ≤ ±20% (Up to ± 60 degree vertical and horizontal, 137Cs)
Dose Rate Linearity*: ≤ ±10% (137Cs)
Alarm Volume: Approximately 60 dB (at 20 cm)
Data Logging: Up to 600 records (optional IR reader required for data transmission to PC)
Environment: -10 to 40 °C (14 to 104 °F) ≤ 90% relative humidity (non-condensing)
Power: One each coin-type lithium battery (CR2450, P/N 21-8639)
Battery Life: 720 hours (without alarm / communication)
Size (H x W x D): 112.8 x 30 x 12 mm (4.4 x 1.2 x 0.5 in.)
Weight: 55.9 g (2 oz.)
*Note: The instrument indicates rough value for dose rate measurements in low radiation fields, such as less than 1 mSv/h (100 mrem/h), so it should only be used for reference.
