Features: 100% brand new and high quality Voltage: 5V/12V/24V can be selected. Function: The relays is turned on when there is a signal, and the relays is turned off after the signal disappears. Output: passive output , a set of relays normally open + normally closed output. The maximum should not exceed 10A. Input: Voltage signal, more than 1.5V is an effective signal, and the current needs at least 0.1mA. Application: Combined with travel switch and induction switch to realize: automatic door closing over time, interruption monitoring of assembly line product, interruption monitoring of water flow and air flow, other purposes, etc. Package Includes: 1x Timer Control Relays Module Specifications: Voltage: 5V/12V/24V Power Consumption: