Survey Meter PDR-303

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Compact Survey Meter PDR-303


PDR-303 is a well-designed Gamma survey meter for ambient dose rate measurement with a comfortably compact shape.

Semiconductor detector with the reasonable water proof (splash proof) structure enables comfortable measurement for any user. TFT color LCD assists users to read the value, and sufficient alarm features (display and sound) inform users when the dose rate exceeds the preset level.


This model is the lightest type in the world which offers you comfort to measure radiation even in the field. You can measure low energetic leakage X-ray, in addition to common gamma by radioisotopes. This also features beta detection with the cap opened.


Radiation Detected Gamma (X-ray) (50keV~)
Detector Silicon Semiconductor Detector
0.1μSv/h to 1Sv/h
±30% (Reference Cs-137, 60keV to 1.5MeV)
Accuracy ±15% (Reference Cs-137)
Display TFT Color LCD
Audible functions Measurement Count and Alarm (with ON/OFF, and sound volume adjustable)
Data saving Continuous saving, instantaneous saving, more than 3,000 data saved
Battery One lithium-ion battery
Four AA alkaline batteries (require an optional battery holder*)
Protection class IP65 on lithium-ion battery with the protective silicone cover
Dimensions Approx. (W) 63 x (D) 38 x (H) 201 mm
Weight Approx. 200 g (incl. lithium-ion battery)

∗ Battery holder is optional