Specifications (Gammed IV) Operating Power: 6Vdc Lead-Acid rechargeable battery Battery Charger: Input: 230 VAC; 50/60 Hz; 0.1A Output: 12 VDC; 10W Power Consumption: 3 W maximum Maximum Count Rate: 400 cps Dimensions: 10"W x 10.25"D x 4.33"H Weight: 8.38lbs- excluding probes Probe: CdTe Detector Energy Range: 15-170keV Final Size Of Probe: 105mm L x 11mm Dia. Weight: 120g Probe: CsI Detector Energy Range: 100keV-1MeV Final Size Of Probe: 110mm L x 16mm Dia. Weight: 220g The Gammed IV Surgical Probe is a complete, state-of-the-art hand-held counting instrument that can be used for a variety of pinpoint localization measurements, such as demanded by Sentinel Lymph Node Biopsy (SLNB) techniques. Two high efficiency detectors with superior angular sensitivity allow for: precision marking of the sentinel node site on the skin surface, and provide the surgeon with the ability to verify target nodes in-vivo, thus avoiding removal of healthy tissue. The versatility and accuracy of the Gammed IV Surgical Probe provides for many uses that reach far beyond SLNB.