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QIACHIP KR1201MINI-V03 ( KR1201 Series ) Instruction Manual DC 3.3V-12V 433MHz RF Remote Control Module Receiver

QIACHIP KR1201MINI-V03 Product Diagram.webp

Version: V1.0

Last Updated: 2026-10-24

Model: KR1201MINI-V03 ( KR1201 Series )

Product Size

QIACHIP KR1201MINI-V03 Size Figure.webp

  • Receiver Length (L) x Width (W) x Height (H): 31mm x 14mm x 7mm

Component Description

QIACHIP KR1201MINI-V03 Component Description Figure.webp

  • 1: Antenna
  • 2: Learning button
  • 3: Indicator light
  • NO: Normally open terminal
  • COM: Common terminal
  • NC: Normally closed terminal
  • DC+: Positive Input terminal
  • DC-: Negative Input terminal

Wiring Diagram

Disconnect power before wiring.

Figure 1

QIACHIP KR1201MINI-V03 Wiring Diagram 1.webp

Figure 1: Wiring diagram for Electric Lock

  • Load: Electric Lock
  • Input Power: DC 3.3V-12V Max: 1A

Figure 2

QIACHIP KR1201MINI-V03 Wiring Diagram 2.webp

Figure 2: Wiring diagram for Button switch

  • Connection: The relay output (NO and COM) is connected in parallel with the button switch.
  • Input Power: DC 3.3V-12V Max: 1A

Function description and setting method

(1) Momentary mode; (2) Toggle mode; (3) Latching mode; (4) Delay mode; (5) Reset function.

  • The module input voltage is DC 3.3V-12V. If the load and the module share the same power supply, the supply voltage must not exceed 12V.
  • To switch a 24V load, use a separate 24V power supply for the load. Keep the module supply within DC 3.3V-12V.
  • The remote control must be paired with the receiver before use. If it is not paired, follow the steps below to complete the pairing.
  • When you use the third working mode, a remote control with at least two buttons is required.
  • When pairing a second remote, you do not need to reset the receiver by pressing its button 8 times.
  • Once the receiver and transmitter are paired and a working mode is selected, the receiver will retain this mode even if powered off and on again.
  • The following working modes require the use of QIACHIP brand remote controls (transmitters) and controllers (receivers/wireless remote control switches). Compatibility with other brands is not guaranteed.

(1) Momentary mode

In this mode:

  • Press and hold the remote control button (such as A), and the corresponding relay on the receiver will turn on.
  • Release the remote control button (such as A), and the corresponding relay on the receiver will turn off.

How to set momentary mode

Step 1

Click the learning button of the receiver 1 time. The indicator light on the receiver will turn on, and the receiver will enter the setting state.

Step 2

Press the button on the remote control (such as A) once. The indicator light on the receiver will flash and then will turn off. The momentary mode will be set successfully.

(2) Toggle mode

In this mode:

  • Press the remote control button (such as A), and the corresponding relay on the receiver will turn on.
  • Press the remote control button (such as A) again, and the corresponding relay on the receiver will turn off.

How to set toggle mode

Step 1

Click the learning button of the receiver 2 times. The indicator light on the receiver will turn on, and the receiver will enter the setting state.

Step 2

Press the button on the remote control (such as A) once. The indicator light on the receiver will flash and then will turn off. The toggle mode will be set successfully.

(3) Latching mode

In this mode:

  • Press the remote control button (such as A), and the receiver's relay will turn on.
  • Press the remote control button (such as B), and the receiver's relay will turn off.

How to set latching mode

Step 1

Click the learning button of the receiver 3 times. The indicator light on the receiver will turn on, and the receiver will enter the setting state.

Step 2

Press the button on the remote control (such as A) once. The indicator light on the receiver will flash and then will turn on.

Step 3

After the indicator light turns on, press another button (such as B) on the same remote control. The indicator light on the receiver will flash and then turn off. The latching mode will be set successfully.

(4) Delay mode

In this mode:

  • Press the remote control button (such as A), and the corresponding relay on the receiver will turn on, then turn off after the set delay.

How to set delay mode

Step 1

Click the learning button of the receiver 4 times. The indicator light on the receiver will turn on, and the receiver will enter the setting state.

(Click the receiver button 4 times: The corresponding relay will turn off after a 5-second delay);

(Click the receiver button 5 times: The corresponding relay will turn off after a 10-second delay);

(Click the receiver button 6 times: The corresponding relay will turn off after a 15-second delay);

(Click the receiver button 7 times: The corresponding relay will turn off after a 20-second delay).

Step 2

Press the button on the remote control (such as A) once. The indicator light on the receiver will flash and then turn off. The delay mode will be set successfully.

(5) Reset function

  • When the KR1201MINI-V03 receiver is reset, all paired transmitters will be unpaired and will no longer be able to control the receiver.

How to reset

Click the learning button on the receiver 8 times. The indicator light will flash and then will turn off. The reset will be complete.

Electrical characteristics

Parameter Value
Input voltage DC 3.3V-12V
RF frequency 433.92MHz
Relay max contact current 1A
Quiescent Current 5.0mA ~ 5.5mA
Receiver sensitivity -100dBm
Operation mode Momentary mode/Toggle mode/Latching mode/Delay mode
Working temperature -20℃~+80℃
Size 31x14x7mm

Warning

  • The positive and negative terminal wires must not be reversed.
  • When using wireless electronic devices, avoid proximity to metal objects, large electronic equipment, electromagnetic fields, and other sources of strong interference.