FEATURES: Adjustable Volume Control Replaceable Tip Continuity & Polarity LED External Warble Select Short Circuit LED Single Line Modular LED Alligator Connector ClipsSPECIFICATIONS: 5 Digit UPC: 49989 Gain nominal : 30 db Input Impedance nominal : 100 M Plastic Tip Resistance: 300 Battery: 9 VDC NEDA 1604, JIS 006P, or IEC 6LR61 Battery Life nominal : 50 hours Length: 231 mm 9.0 Width: 55 mm 2.2 Depth: 28 mm 1.1 Weight: 145 g 5.2 oz Operating/Storage Temperature: 0 C to 50 C 32 F to 122 F Talk Battery into 600 : 4.6 VDC Output Power into 600 : +10 dBm Resistive Short Visual Indication: 50 hours Storage Temperature: 50 C to 75 C 58 F to 167 F Operating Temperature: 0 C to 50 C 32 F to 122 F