External Telescopic RF Antenna With SMA Connector (Model: 0020918) 30A Hight Load Then the transmitter will send

Then the transmitter will send out a buzzing sound to inform you that the receiver has been successfully operated

Operation by manual buttons on the receiver:

the third relay is activated (two terminals "NO" and "COM" of OUT3 are connected

"K2" and "G"

Max Output Voltage: 18VDC

External Telescopic RF Antenna With SMA Connector (Model: 0020918) 30A Hight Load Then the transmitter will sendFeatures: Model No: 0020918 (ANT3). Work with wireless RF system, the receiver or transmitter will have farther working range with external telescopic antenna. Length of external telescopic antenna: 108mm 445mm (stretch). With SMA connector. If you stretches the external telescopic antenna, it can have a further working range, which is twice as much as it used to be.