12V 15A 5 minutes auto shutoff relay switch with 2 wireless remote control

12V 15A DRY CONTACT 5-minutes AUTO SHUTOFF RELAY SWITCH universal multi-purpose auto shutoff timer DRY contact relay switch works with most 12v powered device applications. how does it work?when relay is on (close), it will began count down, when it reached 0(±1) second, relay turns off (open) there are 2 different hookup option, see connection diagram in photo section. Specs:Kit included: 1 switch receiver box, 2 water resistant remote control key fobs, included battery Physical dimension: remote 2-1/4″ x 1-3/16″ x 7/16″ receiver box 2″ x 1-7/8″ x 1″ Remote range: ~80ft (remote range and signal strength varies depend on how device is setup, battery strength, interference, etc..) power input: 12V DC with minimum 500mA relay output: 12V DC max. relay current: 15A standby current: 4.5mAoperating temp: 0~135f