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 individually All 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 forever colour:black material:plastic size:71x39x25mm Package Contents: 1 * Relay Delay Switch Module Only 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.