Sale Staticmaster® Self Powered Alpha Ionizer - 1U400 Staticmaster® 1U400 Self Powered Alpha Ionizer - 1 Inch - 500 uCi Model 1U400 Specifications ISOTOPE: Polonium-210 MATERIAL: Stainless steel housing, aluminum grid EMISSION: Alpha ACTIVITY: 500 µCi Weight: 0.4 oz. (11.3g) OPTIMUM RANGE: 0... MSRP: Was: Now: $214.17 Add to Cart