Usage Tips:Display with LCD two columns, Can display parameters directly;Trigger mode: high and low level,switch quantity.meet most of the needs.Power supply: 6~30V.Parameters can be modified via UART.Stop button to provide emergency stop function.5 minutes without any operation into a low-power state. Any action wake up.OP// params can be modified individuallyAll parameters are automatically saved by power off.Trigger signal source: High level(3.0V~24.0V),Low level(0.0V ~0.2V),Switch signal.Maxmum Output load: DC 30V 5A and AC 220V 5A.Static Current: 15mA Operating current: 50mA.Service life: more than 100,000 times; working temperature: -40-85 Celsius; Optocoupler isolation,Strong anti-interference ability, Industrial grade circuit board, after power set parameters memory forevercolour:blackmaterial:plasticsize:71x39x25mmPackage Contents:1 * Relay Delay Switch ModuleOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. wudi1946