Hitachi PDM-313 Electronic Pocket Dosemeters (Neutron)

Radiation detected: Neutron (0.025eV to 15MeV)
Detector: Silicon semiconductor
Measurement range: 0.01mSv to 99.99mSv
Accuracy: Within ±40% (Ref. 4.5MeV of 241Am-Be with slab phantom)
Gamma rejection: Approx. up to 100mSv
Power: One lithium battery CR2450
Battery life: Approx. 1 month of continuous use (at room temperature of 20 degrees C)
Environmental requirements in operation
+ Temperature : 0 to +45 degrees C,
+ Relative humidity : 90%RH or less (non-condensing)
Dimensions: Approx. 30 (W) x 12 (D) x 145 (H) mm (excluding the clip)
Weight: Approx. 70g