Omron Hour Counter, 7 digits, LCD, Screw Connection, 4.5 → 30 V dc. Backlighting: Yes. Input Type: Voltage. Count Capacity: 999999.9. Reset Method: Manual. Display Range: 0 → 3999 d 23.9 h, 0 → 999999.9. Digit Height: 8.6 mm. Minimum Operating Temperature: -10°C. Maximum Operating Temperature: +55°C. Weight: 60g. Mounting Type: Flush Mount. Series: H7E. MPN: H7ET-NV-H