Equipment Type
Handheld Instruments
Dedicated Purpose Instruments
Gamma Dose Rate
Personal Radiation Monitor
Handheld Instruments
Dedicated Purpose Instruments
Gamma Dose Rate
Personal Radiation Monitor
Personal Radiation Monitor - Model 25

Specifications
DISPLAY RANGE: 0.01 mR/hr to 1000 R/hr
DETECTOR: internal energy-compensated GM
GAMMA SENSITIVITY: 18 cpm/mR/hr
ENERGY RANGE: 60 keV to 2 MeV
DISPLAY: 3½ digit backlit LCD display with a total range from 0.01 mR/hr (or mR) to 1999 R/hr (or R), also displays time remaining from 19:59 to 00:01 (in hh:mm format)
ALARMS: radiation alarms adjustable over entire range
AUDIO: built-in speaker (typically 95 dB at 0.3 m [1 ft])
LOW BATTERY INDICATION: provides 8 hours warning of low battery
LOSS OF COUNT: detector failure results in a visual and audible warning
CALIBRATION: requires no tools or software when exposed to a traceable radiation field
POWER: 2 each lithium coin cell batteries
BATTERY LIFE: typically 6000 hours
CONSTRUCTION: injection-molded plastic housing with sub-surface printed membrane front panel, completely gasketed for water resistance, supplied with rubber boot with built-in belt feed-through
TEMPERATURE RANGE: -40 to 65 °C (-40 to 150 °F)
SIZE: 7.6 x 5.4 x 1.7 cm (3.0 x 2.1 x 0.7 in.) (H x W x D)
WEIGHT: 144 g (5.1 oz), including batteries
DETECTOR: internal energy-compensated GM
GAMMA SENSITIVITY: 18 cpm/mR/hr
ENERGY RANGE: 60 keV to 2 MeV
DISPLAY: 3½ digit backlit LCD display with a total range from 0.01 mR/hr (or mR) to 1999 R/hr (or R), also displays time remaining from 19:59 to 00:01 (in hh:mm format)
ALARMS: radiation alarms adjustable over entire range
- Dose rate alert
- Dose rate (hi)
- Accumulated dose alert
- Accumulated dose (hi)
- Time remaining to allowed dose (hi)
- Detector failure alert
- Low-battery notice when only 8 hours remain
AUDIO: built-in speaker (typically 95 dB at 0.3 m [1 ft])
LOW BATTERY INDICATION: provides 8 hours warning of low battery
LOSS OF COUNT: detector failure results in a visual and audible warning
CALIBRATION: requires no tools or software when exposed to a traceable radiation field
POWER: 2 each lithium coin cell batteries
BATTERY LIFE: typically 6000 hours
CONSTRUCTION: injection-molded plastic housing with sub-surface printed membrane front panel, completely gasketed for water resistance, supplied with rubber boot with built-in belt feed-through
TEMPERATURE RANGE: -40 to 65 °C (-40 to 150 °F)
SIZE: 7.6 x 5.4 x 1.7 cm (3.0 x 2.1 x 0.7 in.) (H x W x D)
WEIGHT: 144 g (5.1 oz), including batteries





