Neecooler Hour Meter AC100-250V 6-digital Display Electromechanical Engine Hour Meter Counter [SYS-1 ]for Air Compressor Generator ATV Lawn Mower Chainsaw Tiller Chipper The meter has a positive and a negative lead for easy installation. Compact size, can be operated within a wide voltage range.The timer operates on in put voltages from 100 to 250 Volts AC. Rectangle shaped 6 digital display hour meter, from 1/10 hour to 99999.9,Resolution 0.1 hour. Reliable timing accuracy with error under 1.This meter is not waterproof, and can not be submerged. SATISFACTION GUARANTEED: 30-Day money back and 1-Year warranty..It works well for 240 volt air compressor, and it is very widely used for automobiles, motorcycles, ATV, UTV Lawn Mower Chainsaw Compressor Tiller Chipper Dynamo Generator