This is an essential piece of equipment for anyone who thinks that they may be entering an area where there is a possibilty that they may be exposed to radiation.

This watch features a Geiger-Muller tube as a sensor, which detects gamma radiation and converts it into Dose Equivalent Rate (DER) and Dose Equivalent (DE). These figures allow the user to keep track of the radiation level  and to estimate the potential accumulated absorption of gamma radiation.

This watch offers seperate audible alarms on DER and DE and these alarm limits can be set by the user.

Apart from radiation detection the watch offers time/alarm/and date functions in both analogue and digital format.

Specifications:

DER indication range:  0.1 to 4000mSv/h

DER threshold range:   0.1 to 4000mSv/h (0.01;0.1;1.0;10.0;100)

DE indication range:  0.001 to 9999 mSv

DE threshold range:  0.001 to 9999 mSv (0.001;0.01;0.1;1.0;10.0;100)

DE accumulation time range:  1 to 9999 hours.

Accuracy of indication of DER:  +/-30%

Accuracy of indication of DE:  +/-25%

Energy range:  0.06 to 1.5MeV

Measrurement time decreases automatically in the range: 300 to 2 seconds

Accuracy of analogue watch:  +/- 5 seconds a day

Back light:  Elctro-luminescent back light.