1. Úvod
This user manual provides comprehensive instructions for the QIACHIP KR1204 Universal 12V 4-Channel Wireless RF 433MHz Relay Remote Control Switch Module. This device is designed to control a variety of electronic devices wirelessly, offering stable and reliable performance with high receive sensitivity. It supports a maximum range of up to 50 meters (164 feet) without obstacles. The module features adjustable working modes including Momentary, Toggle, and Latched, and incorporates a learning code for enhanced security.
2. Obsah balení
- 1 x QIACHIP KR1204 4-Channel Wireless Relay Receiver Module
- 2 x 4-Button RF 433MHz Remote Control Key Fobs
3. Bezpečnostní informace
- Zajistěte napájení objtage matches the module's requirements (DC 12V).
- Před prováděním jakýchkoli zapojení nebo údržby odpojte napájení, abyste předešli úrazu elektrickým proudem.
- Nepřekračujte maximální jmenovitý proud 10 Amps for the relays.
- Udržujte zařízení mimo dosah vody a extrémních teplot.
- Professional installation is recommended for complex wiring scenarios.
4. Specifikace
| Funkce | Detail |
|---|---|
| Značka | QIACHIP |
| Model | KR1204 |
| Vstupní objemtage | DC 12V |
| Provozní frekvence | RF 433 MHz |
| Počet kanálů | 4 kanály |
| Jmenovitý proud relé | 10 Amps |
| Kontaktní materiál | Stříbro Měď |
| Typ kontaktu | Normálně otevřený (NE) |
| Typ montáže | Wall Mount (mounting holes provided) |
| Rozsah dálkového ovládání | Až 50 m (164 stop) v otevřeném prostoru |
| IC Storage Capacity | Up to 20 remote controllers |
| Receiver Module Dimensions | Přibližně 75 mm x 54 mm x 25 mm (2.92 palce x 2.11 palce x 0.97 palce) |
Poznámka: Remote control key fobs require 2 CR2032 batteries (not included).

Figure 4.1: Dimensions of the QIACHIP KR1204 receiver module, showing approximate measurements of 75mm length, 54mm width, and 25mm height.
5. Konec produktuview
The QIACHIP KR1204 system consists of a 4-channel relay receiver module and two 4-button remote control key fobs. The receiver module is housed in a protective casing and features screw terminals for easy wiring.

Figure 5.1: The QIACHIP KR1204 wireless relay receiver module (inside its casing and exposed) alongside two 4-button remote control key fobs.

Obrázek 5.2: Detailní view of the KR1204 receiver board, highlighting the 10A relays, LED indicator, highly sensitive receiver modules, and the learning button. Terminal labels for 4NO, 4COM, 4NC, 3NO, 3COM, 3NC, 2NO, 2COM, 2NC, 1NO, 1COM, 1NC, +V, and GND are also visible.
6. Nastavení a instalace
The KR1204 module is designed for versatile applications. Below are general wiring guidelines and example diagrams. Always ensure power is disconnected before wiring.
6.1 Wiring the Receiver Module
Connect the DC 12V power supply to the +V and GND terminals on the receiver board. The output terminals (1NO, 1COM, 1NC, etc.) are for connecting your devices. Each relay has Normally Open (NO), Common (COM), and Normally Closed (NC) contacts.

Obrázek 6.1: Přample wiring diagrams for the KR1204 module, illustrating connections for DC motor control, AC motor control, and general load control (e.g., lamps, curtain motors, garage motors).
7. Provozní režimy a programování
The KR1204 module supports three operating modes: Momentary, Toggle, and Latched. To change modes or pair new remotes, you must first reset the module. After a reset, all previously paired remote controls are temporarily deactivated until re-programmed.
7.1 Resetting the Module (Clearing Codes)
To clear all learned remote control codes from the receiver module:
- Stiskněte tlačítko Tlačítko učení on the receiver board 8krát.
- The LED indicator will flash several times, then turn off, indicating that all codes have been cleared.
7.2 Momentary Mode Programming
In Momentary mode, the relay activates only while the remote button is pressed and held. It deactivates when the button is released.
- Proveďte a Resetovat (clear all codes) as described in Section 7.1.
- Stiskněte tlačítko Learning button 1 time. The LED indicator will turn on.
- Press and hold the desired button on your remote control (e.g., 'A' button). The LED on the receiver will flash, then turn off.
- Release the remote button. The programming for Momentary mode is complete.

Figure 7.1: Visual guide for programming the KR1204 module into Momentary mode. This involves clearing codes, pressing the learning button once, then pressing and holding a remote button.
7.3 Toggle Mode Programming
In Toggle mode, pressing the remote button once activates the relay, and pressing it again deactivates it.
- Proveďte a Resetovat (clear all codes) as described in Section 7.1.
- Stiskněte tlačítko Learning button 2 times. The LED indicator will turn on.
- Press the desired button on your remote control (e.g., 'A' button). The LED on the receiver will flash, then turn off.
- The programming for Toggle mode is complete.

Figure 7.2: Visual guide for programming the KR1204 module into Toggle mode. This involves clearing codes, pressing the learning button twice, then pressing a remote button.
7.4 Latched Mode Programming
In Latched mode, pressing one remote button activates the relay, and pressing another remote button deactivates it. This mode typically uses two buttons for one relay (e.g., 'A' for ON, 'B' for OFF).
- Proveďte a Resetovat (clear all codes) as described in Section 7.1.
- Stiskněte tlačítko Learning button 3 times. The LED indicator will turn on.
- Press the first desired button on your remote control (e.g., 'A' button for ON). The LED on the receiver will flash.
- Press the second desired button on your remote control (e.g., 'B' button for OFF). The LED on the receiver will flash, then turn off.
- The programming for Latched mode is complete.

Figure 7.3: Visual guide for programming the KR1204 module into Latched mode. This involves clearing codes, pressing the learning button three times, then pressing two different remote buttons sequentially.
8. Řešení problémů
- Zařízení nereaguje:
- Check power connections to the receiver module.
- Ensure remote control batteries are functional (see Maintenance for battery replacement).
- Verify that the remote is paired correctly to the receiver in the desired operating mode. If unsure, try re-programming.
- Reduced remote range:
- Ensure the receiver's antenna is fully extended and not obstructed.
- Check for sources of RF interference (e.g., other wireless devices, metal structures).
- Vyměňte baterie v dálkovém ovladači, pokud jsou slabé.
- Incorrect mode operation:
- Perform a full reset (clear all codes) and re-program the remote in the desired mode, following the instructions carefully.
9. Údržba
9.1 Výměna baterií v dálkovém ovladači
The remote control key fobs use CR2032 coin cell batteries. To replace them:
- Opatrně otevřete kryt dálkového ovladače casing.
- Vyjměte starou baterii CR2032.
- Vložte novou baterii CR2032 a dbejte na správnou polaritu (+ stranou nahoru).
- Zavřete dálkový ovladač casinbezpečně.

Figure 9.1: An opened QIACHIP remote key fob, illustrating the location of the CR2032 coin cell battery for replacement.
9.2 Obecná péče
- Keep the receiver module and remote controls clean and dry.
- Zabraňte pádu zařízení na zem nebo jejich vystavování silným nárazům.
10. Záruka a podpora
For warranty information or technical support, please refer to the product packaging or contact QIACHIP customer service directly. Keep your purchase receipt for warranty claims.





