1. Introdução
The RODOT DC 12V 1CH RF Wireless Relay Module is a versatile remote control switch designed for various industrial and security applications. It offers stable and reliable performance with high receive sensitivity, allowing signals to pass through walls, floors, and doors. The maximum range is up to 164ft/50m in open areas. This module is compatible with EV1527 learning code remote controls operating at 433Mhz.
2. Conteúdo da embalagem
O pacote inclui os seguintes componentes:
- 2 x 1-Button Transmitters (Remote Controls)
- 1 x 1CH Receiver Module
- 1 x Receiver Shell

Imagem: Conteúdo da embalagem do produto.
3. Produto acabadoview
The system consists of a receiver module and remote controls. The receiver module is designed for easy integration into various setups, providing terminals for power input and relay output. The remote controls allow for flexible operation of the connected devices.

Image: The receiver module and two remote controls.

Imagem: Detalhada view of the receiver module's terminals.
Video: A guide demonstrating the product's functionality and usage.
4. Especificações
| Marca | RODOTO |
| Número do modelo | KR1201B-4_KT08_2_SET |
| Volume da bobinatage | 12 Volts |
| Vol mínimo de comutaçãotage | 12 Volts (CC) |
| O quetage | 10 watts |
| Tipo de conector | Orifício passante |
| Tipo de contato | Normalmente aberto ou normalmente fechado |
| Tipo de montagem | Montagem PCB |
| Modo de operação | Automático |
| Peso do item | 3.2 onças |
| Dimensões da embalagem | 4.84 x 4.21 x 1.1 polegadas |
5. Instalação e fiação
The receiver module requires a 12V DC power supply. Ensure correct polarity when connecting power. The module provides Normally Open (NO), Common (COM), and Normally Closed (NC) terminals for connecting your device.
Diagrama de fiação
Refer to the diagram below for typical wiring configurations. The power supply for the connected device can be any voltage, as the relay only controls the circuit's switch.

Image: Wiring diagram for the receiver module.
Definições de terminais:
- COM: Common terminal of the relay.
- NÃO: Normally Open terminal of the relay. When the relay is not working, NO is disconnected from COM.
- NC: Normally Closed terminal of the relay. When the relay is not working, NC is connected to COM.
- V+: 12V Positive input.
- V-: 12V Negative input.
Video: Demonstration of wiring and pairing for the 12V 1-channel remote control switch.
6. Operating Modes & Pairing
The relay module supports several operating modes, which can be configured by pressing the learning button on the receiver module a specific number of times. Always clear previous pairings before setting a new mode.
Clearing Paired Remote Controls:
Press the learning button 8 times. The indicator LED will flash, confirming all previously paired remote controls have been cleared.
Setting Operating Modes:
After clearing, press the learning button the specified number of times for your desired mode, then press a button on your remote control to pair.
- Modo Momentâneo: Press the learning button 1 time. Press and hold the remote button to turn ON, release to turn OFF.
- Modo de alternância: Press the learning button 2 times. Press the remote button once to turn ON, press again to turn OFF.
- Modo travado: Press the learning button 3 times. (Requires a 2-button remote). Press button A to turn ON, press button B to turn OFF.
- Time Delay Mode: Press the learning button 4, 5, 6, or 7 times for 5s, 10s, 15s, or 20s delay respectively. Press the remote button to turn ON, it will automatically turn OFF after the set delay.

Image: Visual explanation of different working modes.

Modo Momentâneo

Modo Alternar

Modo travado

Modo de atraso desligado
7. Solução De Problemas
- O controle remoto não está respondendo: Ensure the receiver module is powered correctly (12V DC). Check if the remote control is paired to the receiver. If not, follow the pairing instructions.
- Alcance limitado: Ensure the antenna on the receiver module is extended and not obstructed. Environmental factors like thick walls or other RF interference can reduce range.
- Incorrect Mode Operation: If the relay operates unexpectedly, re-clear all paired remotes and re-pair them in the desired operating mode.
- LED não acende: Verify the power supply connections to the receiver module. Check the LED itself for damage.
8. Informações de segurança
- Desligue sempre a energia antes de realizar qualquer fiação ou manutenção.
- Certifique-se de que todas as conexões estejam seguras para evitar curto-circuitos.
- Não exponha o módulo à umidade ou a temperaturas extremas.
- This device is intended for low-voltage DC applications. Do not connect to AC power unless specified.
9. Garantia e Suporte
For any issues or questions regarding your RODOT DC 12V 1CH RF Wireless Relay Module, please contact RODOT DIY customer support. Refer to your purchase documentation for warranty details.