This is a 2-zone (2-Channel)12VDC ON and OFF relay controlled by one keychain style handheld transmitter. There are 2 sets of ON and OFF keys, total 4keys to individually control the two zones.
the keychain style transmitter was made with a solid metal frame and a sliding protection cover to avoid the accidental press of the keys.
This is a 2 zone receiver with 1 transmitter. The 2-zone outputs are controlled by two sets of keys on the transmitter with On and Off function. Here is the key function and output chart:
Left Output Zone 1 Reception, left upper key ON, left lower key OFF.
Right Output Zone 2 Reception, right upper key ON, right lower key OFF
Note: Photos show optional sleeving and 4-pin connector.