... LED display; YOTO HK4 Series Digital Time Delay Relay Main introductions:1.Up and down counting function2.High ... external reset, pause connection for easy manual control5.Optional timing range, including 3S, 30S, 6S, 60S, 10S, 3M, ... ; electrical life:100 thousand times forrated load7.timing range: 0.01s~99.99s,0.1s~999.9s, ... you are interested in our time delay relay,pls do not be hesitate to contact with ...