
Manufacturer: RAE Systems
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The GammaRAE II R is a gamma radiation detector and full-range dosimeter in a single instrument. Designed specifically to meet the needs of first responders, it has the rapid response of a detector and the accurate dose measurement of a dosimeter.
Key Features
- Sensitive CsI scintillator for excellent search capability and fast response
- Energy-compensated PIN diode sensor for high dose rate range and accurate dosimeter capabilities
- Prominent visible, audible and vibration alarms
- Alerts first responders to radioactive threats
- Accurately measures accumulated dose to the wearer
- Immersible in water for easy decontamination
- Top-mounted, invertable display
- Continuous digital readout in Rem/hour (μR/h & mR/h) or in Sievert/hour (μSv/h & mSv/h) and counts per second (cps)
- Two operation keys, simple intuitive programming
- Long calibration life
- Two AA Alkaline batteries last up to 600 hours
- Large, 30,000-point datalog capacity, downloaded via cable-free Bluetooth® connection
Sensor
- Radiation Sensors: 3cc CsI (TI) with Photodiode (Low channel) Energy-Compensated PIN Diode (High channel)
- Energy Range: 0.06 to 3.0 MeV
- Dose Equivalent Rate (DER) Range for 137Cs: 1 μR/h to 600 R/h (0.01 μSv/h to 6 Sv/h)
- Accuracy of DER: ±20%
- Dosage Range: 1 μR to 999.9 R (0.01 μSv to 9.9 Sv)
- Background Reference: Background level reference set automatically on start-up (Search Mode only), plus user-initiated as needed
- Calibration: None required; periodic functional test recommended using 1 μCi and 16 μCi 137Cs check sources; factory calibration available if needed
Alarms
- Time to Alarm: <2 seconds
- Alarms
- Loud audible buzzer (85+ dB @ 30 cm)
- Built-in vibration alarm
- Highly visible LED lights on both sides of LCD graphic display
- Alarm Settings
- Dose Rate
- Search Mode: Alarm threshold based on variations in local background level
- Safety Mode: User-programmable low and high alarm thresholds based on dose rate
- Dose
- User-programable low and high alarm thresholds based on dose
- Stay Time: Alarms vary by time (3 min to 2 hrs, once per minute; <3 min, once every 5 sec; 0 min and beyond, same as dose alarm)
- Dose Rate
Datalogging and Communication
- Datalog Size: 30,000 data points (20 days at 60-second intervals)
- Datalog Modes
- Continuous: Logs data at all times
- Event-Driven: Starts logging data on alarm
- Datalog Interval: User programmable, 1 to 3,600 seconds
- Communication: Built-in Bluetooth® radio interfaces with computer for datalog download and configuration changes
Battery
- 2 AA alkaline batteries
Operating Period
- Up to 600 hours
Temperature
- -20° C to 50° C (-4° F to 122° F)
Temperature Alarm
- Temperatures above 50° C (122° F) will cause a high-temperature error message
Humidity
- 0% to 95% (non-condensing)
Shock Resistance
- Passes drop test from 1.5 m (59")
IP Rating
- IP-67 (immersible)
Intrinsic Safety
- Certified to meet Class I, Div. I, Groups A, B, C, D, T4 ATEX II IG EEx ia IIC T4
Display
- Graphic LCD with 1.2" x 0.75" (30.5 mm x 19 mm) viewable area can be flipped for view by user
- Radiation intensity displayed in cps or dosage rate in divisions of R/h or Sv/h
Direct Readout
- Dose rate, peak, min, total dose, battery status, time, temperature
Ergonomics
- Nonslip rubber housing with grippable ridges securely fits hand or glove
Keypad
- 2 operation/program buttons
Size
- 4.92" x 2.68" x 1.38" (125 mm x 68 mm x 35 mm)
Weight
- 9.5 oz (270 g)
Attachments
- Rugged metal belt clip and wrist strap
- Customs and border patrols
- Law enforcement
- Security officers in nuclear power facilities, banks, government laboratories, medical facilities
- Military
- Government agencies
- HazMat teams
- Fire departments