Uses MCU as the main chip, high precision and stable percompatible withmance.Supports both mon-mode and cycle mode, you can adjust the bridge to switch to mode.Multiple time intervals to choose from: There are many voltage and time range compatible with your choice, both "on" time and "off" time are adjustable.Can be used to control the AC or control repeated on/off compatible with burn-in testing of equipment and products.Suitable compatible with devices with timer, repeated machine test circuit and intermittent fish tank pump.This relay module is designed with high precision. We offer you more voltages and time intervals compatible with your choice and you can adjust the delay times according to your needs, both in the "run" time and "stop" time, which will certainly bring you a lot of comcompatible witht. And it can be used in devices compatible with the operation of the timer, repeated test circuit of the machine and intermittent fish tank pump.Technical data:Standby current: less than 10mADynamic current: 45mA @ 12V; 90mA @ 5V; 30mA @ 24VContact: 1 group NO + NCCharging capacity: 10A (AC 0-250V, DC 0-30V)Size: 70 x 20 x 18 mm / 2.75 x 0.78 x 0.7 inchesTime accuracy: maximum value x 0.001Colour: greenMaterial: PCBPackage Contents:1 * Time relay moduleOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.