SecuriTEST PRO CCTV/Security Tester, Voltage Rating: 12 VDC Plus/Minus 10 PCT Electronic Input, Amperage Rating: 1 AMP Electronic Input, Display: 2.5 IN Color LCD Field Monitor, Dimensions: 1.6 IN Length X 3.7 IN Width X 6.7 IN Height, Weight: 0.820 LB (Including Batteries), Battery: (1) 3.7 V LiPo