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An electronic control module with a green circuit board inside a black plastic housing, featuring a blue terminal block, a white sensor, and a prominent orange circular button.
Security King Sentry 1 Channel Rx Binary (433) Dip Type remote receiver, featuring a green circuit board inside a black plastic housing with a blue terminal block, shown on a white and black graphic background with product specifications.
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Sentry 1 Channel Rx Binary (433) Dip Type

R 189.00 R 259.00
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An electronic control module with a green circuit board inside a black plastic housing, featuring a blue terminal block, a white sensor, and a prominent orange circular button.
Sentry 1 Channel Rx Binary (433) Dip Type
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Sentry 1 Channel RX Binary (433MHz) Dip Type Receiver – MERX1-B1

The Sentry MERX1-B1 1 Channel Binary Receiver is a reliable single-channel remote control receiver designed for use with compatible 433MHz Sentry binary DIP-switch transmitters. It is ideal for gate motors, garage doors, access-control systems and other applications requiring dependable wireless activation.

Using traditional binary DIP-switch coding, the receiver can be easily configured to match compatible transmitters without complex programming. A potential-free relay output allows integration with a wide range of automation and access-control equipment. 

Key Features:

  • Single-channel receiver

  • 433MHz binary receiver

  • Compatible with matching Sentry binary DIP-switch transmitters

  • Simple DIP-switch code configuration

  • Potential-free relay output

  • Suitable for gate motors, garage doors, electric locks and access-control systems

  • Operates from a 12–24V AC/DC power supply

  • Compact and practical design for straightforward installation

Ideal for:

  • Gate automation

  • Garage door automation

  • Access-control systems

  • Electric locking applications

  • Other compatible remotely controlled equipment

Product Specifications:

Brand: Sentry
Model: MERX1-B1
Type: 1 Channel Binary Receiver
Frequency: 433MHz / 433.92MHz variant
Coding Type: Binary DIP Switch
Channels: 1
Power Supply: 12–24V AC/DC
Relay Output: Potential-free relay contact

The Sentry MERX1-B1 is a practical solution for maintaining or expanding compatible legacy binary remote-control systems where simple DIP-switch programming and reliable single-channel operation are required.

Vendor Sentry
Type Accessories
Sku ST-R1