12V 4Ch DB9 RS232 Relay Board Remote Control UART Serial Port Switch for Car Motor

Features: This is  4 Channel Relay Module. DC 12V power supply (voltage range 9-13v). Standby current (all relays closed) 18MA, 1 channel  relay open 50MA, 2 channel relays open 81MA, 3 channel relays open 110MA, 4 channel relays open 141MA. RS232 DB9 female interface. "Read", "open", "close", "Self-locking" , click, interlock 6 commands, can satisfy most of the industrial control.  Specifications: Model: CE039_12V Product series: RS232 Rated current: 10A Rated voltage: DC12V 3C rated voltage range: below 36V Relay load current: Max 10A Relay load voltage: DC 1-100v or AC85-265v Weight: 67g Size: 8.5 x 4.7 x 1.8cm/3.35 x 1.85 x 0.71inch Package Included: 1 x  RS232 Relay