RK720 Dual-Channel Multi-Frequency RF Remote Control Duplicator

The RK720 is a four-button RF remote control duplicator for compatible garage doors, barrier gates, rolling shutters and other wireless control systems. Dual-channel switching allows two supported control groups to be managed from one handheld remote, while a telescopic antenna provides a practical way to adjust the antenna position during use.

Match the frequency and coding protocol

The supplier describes support for 16 frequencies within a 300–915 MHz range, including common 315 MHz and 433.92 MHz systems. This refers to supported frequency settings, rather than continuous compatibility with every frequency in that range. Confirm the original transmitter frequency and required configuration before ordering.

The product is listed for learning-code applications, with image-based claims for selected rolling-code and encrypted-code remotes. Compatibility depends on the exact transmitter protocol and receiver pairing procedure. A matching frequency alone is not enough to establish whether a remote can be copied, and some installations require pairing at the receiver.

Four-button control in a compact housing

The white plastic enclosure uses four silicone buttons arranged vertically and a telescopic antenna. The supplier dimension drawing gives an approximate size of 99 × 40 × 15 mm. Power is supplied by a 12 V 23A battery; confirm whether the battery is included in the selected supply configuration.

The listing states a control distance of up to 500 m. Actual usable range varies with receiver sensitivity, antenna arrangement, buildings, metal structures and local radio interference. Check performance at the intended installation before relying on a stated maximum distance.

Selection and installation checks

• Record the original remote model, operating frequency and coding protocol.

• Confirm the required dual-channel switching behaviour and button assignments.

• Check whether copying is supported or receiver-side pairing is required.

• Verify the 12 V 23A battery specification and battery inclusion.

• Test every assigned function and the practical operating range on site.

Applications and project support

Potential applications include compatible electric curtains, clothes drying racks, awnings, shutters, garage doors, barrier gates and lighting controllers. Share the original transmitter label, receiver details and intended operating sequence with ANRIVERS so the suitable frequency and code configuration can be checked for a replacement or OEM project.