NukAlert™ is a patented personal radiation meter, monitor and alarm.
It's small enough to attach to a key chain, and this device operates constantly non-stop, 24/7 and will promptly warn you of the presence of unseen, but mostly only on dangerous levels of radiation.
Features & Benefits Meets MIL-STD 461D (Control of EM Interference)
Meets MIL-STD RS105 (EMF Transients)
Tested & Verified by Naval Air Warfare Center
Always "ON" 24/7 includes long-life 10+ year
Detection Range: 100 mR/hr to 5,000 R/hr
Metering: 100 mR/hr to 50 R/hr, in 10 calibrated
Proportional increasing "chirp" rate: 50 R/hr to
     5,000 R/hr
Gamma & X-rays from 20 keV to above 2 MeV
Sensitivity for the higher emergency radiation
Alarm chirp corresponds to chart on the back
     of this device
Performance is verified by Nat'l Radiological Lab
Each unit individually radiation accuracy tested
10 Year Warranty
Made in U.S.A.
Specifications Detects Gamma & X-ray radiation:
     20 keV to 2+ MeV
Detection Range: 100 mR/hr to 5,000 R/hr
     100 mR/hr to 50 R/hr indicated in 10 ranges
Proportional Increasing Chirp Rate:
      50 R/hr to 5,000 R/hr
     Repeating groups of rapid countable chirps
Operational indicator:
     Faint "ticking" = operating OK.
Alarm loudness: ~ 61 dBA (speaking volume)
     Functional after 6' drop or submersion to 6'
     Operational Life Expectancy @ room temp:
- Non-alarming (normal operation)
   10 to 15 years
- Alarming continuously at single chirp level
   3 years
- Alarming continuously at highest alarm level
   3 months
     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:
       ~3 - 4 min. @100mr/hr
       Seconds @ R/hr ranges
Accumulated dose chart on back
EMP immunity: Meets MIL-STD-461D, RS105
Over range survivability:
     Functional after 5K R/hr. for 2hr.
Temperature Range: -20 C to +50 C
Physical: 1.75"x1.25"x .75"H (LxWxH), Wt <1.0 oz.