Specification :

SENSOR
Radiation Detector Miniature, energy-compensated Geiger-Mueller tube
Energy Response Tissue equivalent to ± 25% from 55keV to 6MeV
Dose Range 0¼ Sv to 9.99 Sv ( 0¼ R to 999 R)
Dose Resolution d 0.02 ¼ Sv ( d 2 ¼ R)
Dose Rate Range 0 to 5 Sv/ h ( 0 to 500 R/ h)
Dose Rate ± 15% or ± ( 20 ¼ R/ h)
Accuracy Does not include counting statistics which are less
than ± 20% ( 1 sigma) for rates > 0.20 mSv/ h ( 20 mR/ h)
Foldover No foldover up to 100 Sv/ h ( 10, 000 R/ h)
User Calibration User calibration recommended at least every two years
Factory calibration not required
ALARMS
Alarm Alerts • Loud 75+ dB @ 30 cm for noisy environments
• Highly visible LED lights on both sides of LCD graphic display
Alarm Settings • Dose: 0.10 ¼ Sv to 9.99 Sv ( 10 ¼ R to 999 R)
• Dose Warning: 0.10 ¼ Sv to 9.99 Sv ( 10 ¼ R to 999 R)
• Dose Rate: 0.40 ¼ Sv/ h to 5.00 Sv/ h ( 40 ¼ R/ h to 500 R/ h)
• Stay Time: 6 seconds to 109 hours
• Stay Time Warning: 6 seconds to 109 hours
• “ Chirp� alarm: 1 beep per accumulated dose increment
( 0.02 ¼ Sv to 0.50 mSv or 2 ¼ R to 50mR)
• Low battery alert when 24 hours of life remain
DATALOGGING AND COMMUNICATION
Data Storage 200 data points
Datalog Interval 6 seconds to 109 hours
Communication Datalog accessible using SAIC Dosimeter Reader PDR-1â„¢
POWER
Battery 1 AA alkaline battery, 1.25 V to 3.6 V, easily accessible
with a coin
Operating Period More than 750 hours
OPERATING ENVIRONMENT
Temperature -28° C to 60° C ( -18° F to 140° F)
Humidity 0% to 95% ( non-condensing)
Shock Resistance Passes drop test from 1 m ( 39" ) onto concrete
IP Rating IP54
PHYSICAL CHARACTERISTICS
Display LCD display with pushbutton backlight
Three-digit floating-point readout
Direct Readout • Dose and dose rate, autoranging in units of ¼ Sv, mSv, or Sv
( ¼ R, mR, or R)
• Access status: toggles normal display or “ Out� ( logged out)
Tamper Status Readable flag indicates temporary, unauthorized
battery removal
Reliability Built-in continuous self-test monitors power supply and
G-M tube. Abnormal operation indicated on LCD
Key Pad 2 operation buttons
Size 52mm x 89mm x 24mm ( 2.0" x 3.5" x 0.9" )
Weight 130 g ( 4.6 oz)
Attachments Rugged metal alligator clamp and belt clip