QIACHIP TX181-4 Instruction Manual DC 3V-24V 433MHz RF Power-on Transmitter Module
Version: V1.0
Last Updated: 2026-2-28
Model: TX181-4
Product Size
- Receiver Length (L) x Width (W) x Height (H): 15mm x 10mm x 1mm
Component Description
- 1: Antenna
- 2: Indicator light
- 3: GND (Power Ground Pin)
- 4: V+ (Positive Power Input Pin)
Wiring Diagram
Disconnect power before wiring.
Figure 1
- Input Power: DC 3V-24V
- When the module is powered on, the indicator lights up and the module starts transmitting signals.
- When the module is powered off, the indicator turns off and the module stops transmitting signals.
Figure 2
- Input Power: DC 3V-24V
- After the module is powered on, pressing the external button will turn on the module's indicator light and make it transmit signals.
- When the external button is released, the module indicator turns off and signal transmission stops.
Electrical characteristics
| Parameter | Value |
|---|---|
| Input voltage | DC 3.0V-24V |
| RF frequency | 433.92MHz |
| Transmit Power | ≥10dBm |
| Transmission Distance | 100m - 300m (open and unobstructed environment) |
| Transmission Power Consumption | 5 - 6 mA |
| Working temperature | -40~85℃ |
| Size | 15x10x1mm |
NOTE
- This product is a CMOS device. Anti-static precautions must be taken during storage, transportation and operation.
- Ensure reliable grounding when the device is in use.




