Operating Range: Hour meter-DC9V~80V Battery meter:12V,24V,36V,48V

Display:Battery state-of-charge: 10-bar, tri-color Hour meter: 6-digit, 5mm high

Resolution—Hour meter: 99,999.9 hours

Temperature—Operating:-40°C to 85°C Storage: -50°C to 90°C

Humidity—maximum 95% RH(Non condensing) at 38°C

Mechanical Shock—SAE J 1378, 55g

Mechanical Vibration—SAE J 1378, 20g

Pins—Max 4 pins, battery and hour power +&-; hour meter control & reset pins

BATTERY INDICATOR & HOUR METER