Features: upgrading to simplify, meeting the users' needs. Increase the power supply anti-reverse function. The use of opto isolated input and output, enhanced anti-jamming capability. The last setting parameters can be memorized after power off. Signal terminal voltage signal can be maintained for a long time. Industrial grade PCB boardto ensure stability. Specifications: Timing Range(Settable): 0.1~99.9 seconds; 1~999 seconds; 1~999 minutes Working Voltage: DC 12V Signal Voltage: DC 4~20V Output Capacity: Can Control the Load within DC 30V 5A or AC 220V 5A Static Current: 20mA Working Current: 50mA Working Temperature:-40-85 C PCB Size: 64 * 35 * 18mm / 2.52 * 1.4 * 0.7in (L * W * H) PCB Weight: 25g / 0.89oz Case Size: 68 * 40 * 2 2mm / 2.67 * 1.57 * 0.86in (L * W * H) Product Weight(With Case): 42g / 1.49oz Package Size: 11.5 * 7 * 2.2cm / 4.53 * 2.75 * 0.86in (L * W * H) Note: Relay output is passive contact without charge output, and it controls the on and off of the line. Packing List: 1 * Delay Timer Module with Case