Features:1. This delay relay switches on for some time after power-on, then switches off for some time, and cycles the above process.2. Output adopts optical coupler isolation to strengthen the anti-interfere ability.3. Industrial grade circuit board, stable performance.4. With power-off memory function to save the setting parameters.5. This relay has long service life, widely used to control the on-off of solenoid valve, water pump, motor, etc.Specification:Model: YYA-3Timing range: 0s-999min adjustableSupply voltage: DC 5VStatic current: 20mAWorking current: 50mALife: >100000 timesWorking temperature: -40~85Weight: Approx. 25gTime setting: After power-on, start the countdown.The first three times to press k1 can set the time to switch on, and the last three times is can set the time to switch off. Press K1 to change the position of time setting, press K2 to change digit. After the digital tubes do not flash, press K2 to change the position of decimal point. Timing range varies according the position of decimal point:XXX. - timing range: 0 ~ 999 minutesXX.X - timing range: 0 - 99.9 secondsXXX - timing range: 0 ~ 999 secondsAfter you finish the time setting, you can press and hold K2 to turn on/off the digital tubes.Package List:1 * Cycle Delay Relay