... SwedishTransducer Connections: BNC or Number 1 LEMOBattery: Choice of lithium-ion, nickel metal hydride, and alkaline C-cellsBattery Operating Time: Lithium ion ... : 9 to 10 hoursNiMH: 5 hours; C-cells: 1 to 2 hoursPower ... approved per MIL-STD-810F, Procedure 1, NFPA 70E, Section 500, Class 1, Div. 2, Group D;Shock Tested per IEC 60068-2 ...