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- Detectable Radiation:
Gamma and X-ray from 40 keV to 2 MeV
- Ranges: 100mR/hr to
50R/hr indicated in 10 ranges
- Indication: Repeating
groups of rapid countable chirps (up to 9 chirps per group). Each additional
chirp in an alarm group indicates doubling of the measured dose rate.
Alarm measurement groups are repeated about twice per minute
- Operational indicator:
faint "ticking" when functioning but not alarming
- Alarm loudness: ~
61 dBA (conversational level, for battery conservation)
- Durability: functional
after 6 foot drop to concrete, submersion to 6' depth
- Battery: Operational
Life Expectancy
- Non-alarming (monitor
mode - ticking) - 10 to 15 years
Alarming continuously at single chirp level - 3 years
Alarming continuously at highest alarm level - 3 months (fatal dose
< 12 hrs)
- Detector: patented
CdS photo resistor coupled to a rare earth phosphor scintillator
- Housing: hermetically
sealed, radiation transparent, abrasion resistant ABS plastic
- Accuracy: Within +/-
1 chirp
- Response Time: Dose
rate dependent, faster at higher doses
~3 to 4 min. @100mr/hr, seconds in the R/hr ranges
- Accumulated dose chart
printed on back, time @ alarm rate till 100R dose.
- EMP immunity: tested
to meet MIL-STD-461D, RS105
- Over range survivability:
Functional after 5000 R/hr. for 2 hour duration.
- Temperature Range:
(-20 degrees C) to (+50 degrees C) Specified accuracy at temperature
equilibrium between 0 and 40 degrees C, low level alarm may be briefly
activated by very rapid temperature increase
- Physical: Length 1.75in.,
width 1.25 in., 3/4in thick, Weight <1.0 oz.
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