LUDLUM 23 Electronic Personal Dosimeter (0.1 mrem ~ 99.99 rem; 0.1 mrem/hr ~ 99.99 rem/hr)

Radiation Detected: Gamma and X-ray (35 keV to 3 MeV)

Detector: Silicon semiconductor

Measurement and Display Range: 

Accumulated Dose: 0.1 mrem to 99.99 rem

Dose Rate*: 0.1 mrem/hr to 99.99 rem/hr

Accumulated dose data is automatically deleted when the Model 23 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.

Datasheet

Manual

video