1It is a timer relay module with high precision, stable and reliable performance 2Support 2 modes, mon mode(once) and cycle mode, and you can simply switch mode by adjusting the jumper 3Connect 2 wires of Key if you need module to work recurrently after power on 4There are many voltage and time range for your choice, both on time and off time are adjustable 5Widely used on timer operating equipment, machine repetitive test circuit, fish tank intermittent pump, etcFeatures: It is a timer relay module with high precision, stable and reliable performance.Support 2 modes, mon mode(once) and cycle mode, and you can simply switch mode by adjusting the jumper. Connect 2 wires of "Key" if you need module to work recurrently after power on.There are many voltage and time range for your choice, both "on" time and "off" time are adjustable. Widely used on timer operating equipment, machine repetitive test circuit, fish tank intermittent pump, etc. Specifications: Type: DC5V,0-30min/DC5V,0-24hr/DC12V,0-120min/DC12V,0-24hr/DC24V,0-15min/DC24V,0-30min (Optional) Quiescent Current: Dynamic Current: 45mA@12V; 90mA@5V; 30mA@24V Contact: 1 group NO+NCLoad Capacity: 10A(AC0-250V, DC0-30VSize: 70*20*18mm / 2.75*0.78*0.7"Time Accuracy: Max value*0.001 Mon. Mode: 1. The module Power-on, When triggered the relay is switched on, timer delay off. 2. When triggered on the delay proce