Material: Electrical components.Operating voltage: 6--30V.Trigger Signal Source: High Level Trigger (3.0 V-24 V), signal ground and system ground are not common, which can increase anti-interference abilit.system (short circuit can also connect with a ground common)Output Capacity: can control no more than DC 30V 5A AC or 220 V devices 5A.Optocoupler Isolation: improve the anti-interference ability, after the parameter setting, it will memory forever . Warning: Relay contact is passive and electricity production; 1 channel has the control function on / off.Operation mode:P1: After triggered signal, power relay on time OP, then turn off; within the OP period following operation:1) P1.1: signal being triggered again is not effective2) P1.2: signal being triggered again, start time again3) P1.3: signal being triggered again, reset; disconnect relay, stop timingP2: giving the trigger signal, the time after shutdown relay CL power relay OP time; then timing, turn off the relayP3.1: give the trigger signal after the power relay on time OP, CL shutdown time relay; then operating cycle above cycle gaive signal again, shutdown relay stop timing; cycle times (LOP) can be setP3.2: after connecting. no need to trigger signal, power relay on time OP, CL shutdown time relay; then the operating cycle above timea cycle (LOP) can be setQ4: keeping the function of the signal; if there is no trigger signal, the time will be canceled, relay stay connected; when the signal disappears, timing OP turn off the relay; over time, if no signal again, the time is cleared Expansion Function Key STOP:Sleep Mode:C-P Sleep mode: within 5 minutes, no operation; nixie tube will close auto display, and a function program wellThe d-Normal Mode: nixie tube show everNote: Press and hold STOP button for 2 seconds can achieve change from C-P to O-d; Current state will flash and then return to the main interfaceSize: 6.3*3.8*1.5cm/2.48""*1.50""*0.59""Package includes:1Pc x Cycle Timing Circuit Switch Dear customer, Thank you for choosing our products. If there is any problem with our products, please contact us through the order information. We will be happy to serve you and solve it for you as soon as possible within 12 hours, thank you",