Wearable Gamma Radiation Warning Device

Detection of the increased levels of gamma radiation and their estimation by means of the four-level threshold alarmsystem.

• Wrist warning device.


• Non-stop performance control of the warning device.


• LED and vibrating alarm of threshold levels exceeding with the option to turn off the vibrating alarm.


• Non-stop performance control of the built-in Geiger-Muller counter.


• Manual control of the built-in vibration instrument and residual capacity of batteries with the corresponding LED indication.


• Periodic vibrating and LED alarm when residual battery capacity becomes less than 10 %.


• Automatic vibrating and LED alarm when residual battery capacity is less than 5 %, with the following switching-off of the warning device.


• Two batteries of АААА type.


• Shock-resistant plastic body with the IP67 ingress protection rating.

• Dynamic range of gamma radiation registration from 10 μR/hour to 1000 R/hour;


• Energy range of gamma radiation registration from 0.05 to 3.0 MeV;


• Threshold level values of gamma radiation dose rate:

• 100 μR/hour


• 1,0 mR/hour


• 100 mR/hour


• 10 R/hour

• Relative error of threshold levels determination ± 25 %;


• Time of continuous operation from new batteries not less than 1300 hours*;


• Operating temperatures range from – 20 °С to + 50 °С;


• Weight, not more than 80 g;

   

• Dimensions without a strap, not more than 55х55х27 mm;


• Mean time to failure, not less than 6000 hours;


• Mean service life, not less than 6 years;


• Mean shelf life, not less than 6 years.