Applications: Used for regular room ventilation, cyclic dehumidification, light control, circulating pumps, noon signs, and similar applications. GRT8-S1: One group of contacts operating in a cycle simultaneously. Function Features: Voltage AC230V or AC/DC12V-240V. Output: 1SPDT (16A/AC1). Two time functions: Cycler starting with pulse, Cycler starting with pause. Function selection via external jumper on terminals S-A1. Time scale: 0.1 second to 100 days, divided into 10 time ranges: (0.1 s - 1 s / 1 s - 10 s / 0.1 min - 1 min / 1 min - 10 min / 0.1 hr - 1 hr / 1 hr - 10 hr / 0.1 day - 1 day / 1 day - 10 days / 3 days - 30 days / 10 days - 100 days). Relay status indicated by LED. 1-MODULE, DIN rail mounting. Color: White. Material: PC. Package Contents: 1 x Timer Relay Only the above package content; other items are not included. Note: Light reflection and differences in display screens may cause slight variations between the color of the item in the image and the actual product. Measurement may vary by +/- 1-3 cm.