Applications: Used for regular room ventilation, dehumidification, light control, circulating pumps, and time-based signaling. GRT8-S1: One group of contacts operating in a cycle simultaneously. Function Features: Voltage AC/DC 12V-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 range 0.1 seconds to 100 days, divided into 10 adjustable intervals: (0.1 s - 1 s / 1 s - 10 s / 0.1 min - 1 min / 1 min - 10 min / 0.1 h - 1 h / 1 h - 10 h / 0.1 day - 1 day / 1 day - 10 days / 3 days - 30 days / 10 days - 100 days). Relay status indicated by LED. 1-module design with DIN rail mounting. Color: White. Material: PC. Package includes: 1 x Timer Relay. No other items included. Note: Lighting and display differences may cause slight variations in color between the image and actual product. Measurement tolerance: +/- 1-3 cm.