Special Features:

Pistol type design; radiation detected alpha, beta, gamma and x-ray; detector unsealed air ionization chamber; readout meter 3 1/8 inch scale, taut band movement, illumination for night use; controls inclue function switch, zero set, zero adjust, scale illumination switch; response time 8 seconds; batteries two 1.5 volt d cells and four 22.5 no. 505 batteries; temp range -20 to +120 degrees f; humidity range 0 to 95 percent; weight less than 4 lbs with batteries

Properties:

An electrically operated instrument which measures radioactivity and is calibrated in roentgens per unit time or any multiple threof. For instruments that measure radioactivity directly, see radiacmeter.