Features:It is usually used in automatic control circuits.An "automatic switch" that uses a small current to control the operation of a large current.It plays the role of automatic regulation, safety protection and conversion circuit in the circuit.0~999s, 0~999min., 0~999h wide timing range, with 4.5% timing error.The little timer relay supports multiple types of working mode including timing, delay and cycle, easy to use.Specifications:Material: ABS+PCBRelay Load: 20A power supply Working Voltage: 12VTiming Range: 0~999s, 0~999min., 0~999hMinimum Unit: 1 secondOperating Environment: -10~60, 35~85%Installation Dimension: 45.5 * 26mm / 1.79 * 1.02inItem Size: 47.6 * 29 * 34mm / 1.87 * 1.14 * 1.34inItem Weight: 25g / 0.88ozPackage Weight: 30g / 1.08ozPackage Size: 9 * 5 * 3cm / 3.54 * 1.97 * 1.18inPacking List:1 * Time Controlled Relay1 * Manual (English)