Dadiation dosimeter     SFIORA double

Domestic dosimeter for measurement of the environment and objects radioactivity.

SFIORA double is 2-in-1 device: Home dosimeter for measurement of Gamma, hard Beta and X-ray radiation ("total mode", display like at the right photo). Semi-professional dosimeter with separate measurement of Gamma and hard Beta radiation ("separate mode", display like at the left photo). Dosimeter instantly switched from one mode to another. It has: Beta and gamma radioactivity-time graphs of 64 last measurements. Display of total accumulated radiation dose Counters calibration mode. Sound and vibro alarm with separate thresholds. The result of measuring is corrected by software for the sensors noise and sensitivity. The measurement cycle is 1 to 16 seconds depending on the radiation and selected mode. Reliable numbers are after 8 cycles. On-off and control is by a single joystick. Beta radiation is displaed in cpm/cm2. Other ones in mkSv/h. Dosimeters are avaiable with green-grey display like at the left photo and with blue like at the right photo.

Main parameters:

Radiation sensors 2 GM counters SBM-20 Detecting energies: gamma................. beta.................. x-ray......... 0.1 to 1.25 MeV 0.25 to 3.5 MeV 0.03 to 3.0 MeV Detecting limits: gamma+beta & gamma:..................... beta.................................... total accumulated dose.................. 0 to 999 mkSv/h 0 to 999 cpm/cm2 0 mkSv to 40 Sv Measurement circle: in total mode................ in separate mode............... ** 8 to 1 sec ** 16 to 2 sec Time-graph duration: in total mode................. in separate mode................ ** 1 to 8.5 min ** 2 to 17 min Power supply 2 AA cells (rechargeable as well) (1.2 ... 3.5 volts) Current consumption at a normal radiation, without display backlight and without vibro and sound alarm ~ 8 mA Continues working with fresh batteries (3000 mAh) (without-without-without) at least 10 days Dimensions 110 х 55 x 30 mm Weight with batteries ~ 155 g ** = depending on radioactivity