Fangrui Product Details Applications: It Is Used For Regular Room Ventilation, Cyclic Dehumidifi Cation, Light Control, Circulating Pumps, Noon Signs, Etc. Grt8-s1: One Group Groups Of Contacts Working In A Cycle At The Same Time Function Features: Voltage Ac230v Or Ac/dc12v-240v Output 1spdt (16a/ac1) 2 Time Functions: Cycler Beginning With Pulse,cycler Beginning With Pause Function Choice Is Done By An External Jumper Of Terminals S-a1. Time Scale 0.1 S - 100 Days Devided Into 10 Time Ranges: (0.1 S - 1 S / 1 S - 10 S / 0.1 Min - 1 Min / 1 Min - 10 Min / 0.1 Hrs - 1 H/ 1 Hrs - 10 Hrs / 0.1 Day - 1 Day /1 Day - 10 Days /3 Days - 30 Days /10 Days - 100 Days). Relay Status Is Indicated By Led. 1-module,din Rail Mounting. Color: White Material: Pc Package Contents: 1 X Timer 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.