- Tucson, Arizona, United States
- Jun 13th
Super clean Ludlum model 3 with 44-7 Alpha, Beta, Gamma, X-ray thin mica end window probe right angle C to BNC adaptor and coil cord. Model 3 survey meter 0-400,000 CPM or 0-200 mR/hr in four decades with battery test, fast / slow response switch, audio on / off switch, and reset button. The 44-7 thin mica end window probe is sensitive to ALPHA, BETA, GAMMA, X-RAY, and BREMSSTRAHLUNG X-RAYS.