Timer Relay 1) 3 digit bright LED timer relay 2) Thumb switch setting 3) Power fail memory timer 4) Timing range: 0.1S-99 ... digital Timer RlayHM series Timer Relay has timing function with 3 digit LED display, and thumb swtich for setting timing value. Our ... , including timing unit selection (hour, minute, second), output mode selection (3 modes), output maintain time setting, key lock function, etc.4 ...