Product Specifications Condition: new Color: Black Material: Plastic & metal Voltage: for DC 12V-36V Power: 0.3W Use Temperature: -10 -50 Size: approx. 7.5*6*3.2cm Item included: 1 x hour meter Suitable for: Tracking for time on machinery such as boats, for cars, trucks, tractors or any other device where for time is used to determine oil change intervals, service requirements or where there is a need to record hours operated Note: The item without "automatically to zero" function PRODUCT DESCRIPTION Feature: 1) The meter has positive and a negative leads for easy installation. 2) The timer has a 6 digit display with the least significant digit being 1/10 hour (99999.9) and operates on input voltages from for DC Volts 12-36 for DC. 3) The hour meter timing mechanism contains a quartz oscillator which provides a high degree of accuracy.