The Model 25-1 is a small-sized device designed to warn users any time they are in a potentially harmful radiation environment. The design was specifically designed to warn emergency personnel entering into unknown environments but will equally serve anyone working near radioactive sources as in industrial type applications.
The unit will automatically alarm with a loud audible signal and blinking display when either the dose rate (0.001 mSv/h to 9.99 Sv/h) or accumulated dose (0 to 1999 Sv) setpoints are exceeded. The dose is recorded until manually reset and is for use as reference only; it is not intended for legal dose recording. This small device can be worn on a belt, a lanyard, or armband, and is very simple to use and operate.
||.001 mSv/h to 9.99 Sv/h|
||60 keV to 2 MeV|
|Threshold||Fixed at 40 mV to 10 mV|
||3½ digit LCD with large 12.7 mm (0.5 in.) digits, cpm, cps, low battery indicator|
||typically 18 cpm per mR/hr (1800 cpm per mSv/h)|
|Temperature Range||-40 to 65 °C (-40 to 150 °F)|
|Power||Two Lithim coin cell batteries|
|Battery Life||Typically 6000 hours with alkaline batteries|
|Size||7.6 x 5.4 x 1.7 (3.0 x 2.1 x 0.69 in.) (H x W x L)|