UVRRM DVGW 40° + ÖNORM 160°

Reference radiometer with two sensors for validation of 40°-DVGW and 160°-ÖNORM duty sensors.
The unit is powered with a 9V battery that allows several years of use if seldomly used.
PTB traceable calibration according to DVGW W 294-3:2006 and ÖNORM M 5873 and DIN 19294.