Zap garage door opener 4004 is a radio receiver. It has four channels, so it is able to control up to 4 doors. It has an operating frequency of 433.92 MHz. This is a din rail style receiver, so wiring to the operator will be required.
The antenna for this receiver is not included and must be purchased separately. You can choose from part #2416 internal antenna
or part #2414 external wall mount antenna.
• All Zap Commercial Model Operators and Remotes