QIACHIP KR2305 Instruction Manual AC 110V 220V WIFI Tuya Smart Remote Control Switch 1-CH Relay Receiver
Version: V1.0
Last Updated: 2026-02-03
Model: KR2305
Product Size
- Receiver Length (L) x Width (W) x Height (H): 42mm x 42mm x 20mm
Component Description
- 1: Learning button
- 2: Indicator light
- S1: External Switch Terminal
- S2: External Switch Terminal
- L-Out: Output Live wire terminal
- N-Out: Output Neutral wire terminal
- L-In: Input Live wire terminal
- N-In: Input Neutral wire terminal
Wiring Diagram
Disconnect power before wiring.
Figure 1
Figure 1: Wiring diagram for Lamp
- Load: Lamp
- Input Power: AC 100V-240V
Figure 2
- Figure 2: Wiring diagram for Lamp (SPDT External 1-Way Switch)
- Load: Lamp
- External Switch: SPST 1-Way
- Input Power: AC 100V-240V
Figure 3
- Figure 3: Wiring diagram for Lamp (SPDT External 2-Way Switch)
- Load: Lamp
- External Switch: SPDT 2-Way
- Input Power: AC 100V-240V
Pairing with Tuya APP
Step 1
Connect your phone to 2.4GHz WIFI and turn on Bluetooth.
Step 2
Long press the learning button on the receiver for more than 6 seconds until the indicator light flashes, and the WIFI pairing mode will be successfully activated.
Step 3
Open the Tuya APP. Tap "+" to add a device in the top right corner of the screen, and then tap the device that appears to start the pairing process.
Step 4
Enter the password of the connected 2.4G WIFI, and then wait until the device pairing is completed.
How to connect to third-party applications such as Alexa and Google assistant
Step 1
Open the Tuya APP and select the device to be connected.
Step 2
Access the device control page and tap the "···" settings icon in the top-right corner.
On the device information page, view the list of third-party control platforms supported by the device.
Step 3
Select the platform you want to connect to (e.g., Alexa), tap the corresponding icon to enter the binding interface, and follow the on-screen prompts to complete the binding.
Electrical characteristics
| Parameter | Value |
|---|---|
| Input voltage | AC 100V-240V |
| WIFI frequency | IEEE 802.11 b/g/n 2.4GHz |
| Maximum Load Current | 16A |
| Rated Load | Max 3500W |
| Receiver sensitivity | -108dBm |
| Working temperature | -10℃~70℃ |
| Size | 42x42x20mm |
Note: Rated Load breakdown by scenario: resistive load 3500W, LED light 500W
Warning
- L and N 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.