Time relay module switch timer 230V 10A 0-999 min. Saves the settings after disconnecting the power supply. Product features: Supply voltage: from 6V to 30V or micro USB 5V , Trigger voltage: 3V to 24V , Relay maximum load: 10A 250V AC 30V DC , Working temperature: -40 C to 85 C , Current consumption: 50mA , Time range: from 0 minutes to 999 minutes , At high voltages and continuous operation: heatsink for the LM317 stabilizer required , Dimensions: 62mm x 38mm x 19mm . Directions for use: 6.0-30. V - power supply, GND - ground, Trigger - trigger, GND_T - Trigger ground (not common with power supply ground). The ground of the release in order to avoid disturbances on the control input is not common with the ground of the power supply, it can be changed by shorting the jumper marked GND - GND_T . Additionally, the STOP button allows the relay to be stopped immediately. Device configuration: SET button - setting, confirming, going to the next settings, UP , DOWN buttons - change settings, STOP button - turns the relay on or off and moves the decimal point, Parameter OP - the time of switching on the relay, Parameter CL - time of the relay disconnection, LOP parameter - number of cycle repetitions, Time units: 000. - second 00.0 - tenth of a second (07.5 7.5 seconds) 0.0.0. - minute (0.0.2. 2 minutes)