UMA WR-2-RX wireless dual relay receiver

UMA wr-2-rx – wireless 2-channel receiver with no/nc relay
The UMA wr-2-rx is a compact wireless receiver with two independent relays, designed to work with the WL4 wr-2-tx dual relay transmitter (sold separately). This receiver operates on a 12VDC power supply (not included) and offers a flexible and universal solution for wirelessly switching devices – without wiring.

This no-to-no-no switching solution allows for easy hardware integration of products from different segments or manufacturers. It's ideal for situations where wiring is undesirable or impossible, such as when connecting IP cameras, NVR alarm outputs, access control systems, or alarm systems.

Functionality and application
The WL4 WR-2-RX receives signals wirelessly from the WL4 WR-2-TX transmitter on the 433MHz frequency. The receiver supports two separate relays (each max. 2300W AC) and can be paired with up to 128 transmitters. A single transmitter can also control multiple receivers – the number of receivers is limited only by the range (up to 300 meters in open space).

The receiver supports three working modes:

• Monostable: relay is active as long as the transmit command is active
• Bistable: a short transmit command changes the status of the relay
• Time-controlled: a short activation turns the relay on temporarily (1–255 seconds)

Configurations such as 1:1, 1:n, n:1, or n:n are possible, depending on your application. An English manual is included.

Key features

• Wireless switching of 2 no/nc relays
• Universally applicable – hardware integration
• Compact design
• Works on 433mhz frequency
• Range up to 300 meters in open field
• Power supply: 12VDC