Usage Tips:Applications: Suitable for applications where function and time requirements are known. Time switch, possible to be used for pump decay time after switching heating off, switching of fans. Function Features: GRT8-B Delay off Function Support Wide Range Voltage: AC/DC12-240V / AC230V Output Contact: 1SPDT(1NO1NC) or 2SPDT(2NO2NC) Time scale 0.1 s - 10 days divided into 10 ranges, time setting by a potentiometer. 0.1-1s, 1-10s, 6-60s, 1-10min, 6-60min, 1-10hr, 0.1-1day, 1-10day, only ON, only OFF Relay status is indicated by LED. 1 MODULE 18mm, DIN rail mounting. size: 90 x 18 x 64mm Material: PC colour: white Package Contents: 1 x Time Relay Only the above package content, other products are not included. Note: Light reflection 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.