We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Small green PCB module with silver spring antenna 1.1 x .56 x .16 inches

Ruth's sister

Ruth's sister HC-12 SI4438/4463 Wireless Transceiver Module

SKU CH-SE6T-SGHQ9

A wireless transceiver module operating at 433.4-473.0MHz with 100 channels and up to 1000m range

  • Long-range wireless link up to 1000 m with spring antenna
  • 100 selectable channels across 433.4–473.0 MHz band
  • Adjustable 100 mW transmit power for flexible range control
  • Compact 27.8 × 14.4 × 4 mm module fits tight enclosures
  • Operates from 3.2 V to 5.5 V for broad compatibility

HC-12 SI4438/4463 wireless transceiver module

The HC-12 SI4438/4463 is a 433.4-473.0MHz wireless transceiver module with an integrated spring antenna. It targets hobbyists and engineers building remote sensors, telemetry links or simple control systems that need long range at low data rates. The module operates from 3.2V to 5.5V and delivers up to 100mW transmit power across 100 channels.

Check supply voltage and serial interface before

Your host must provide a stable 3.2V to 5.5V rail capable of supplying peak transmit current. The module communicates over a UART serial link at an air baud rate of 5000bps, so confirm your microcontroller or computer has a compatible serial port and logic level. No Bluetooth stack is supported despite the generic wireless label.

Thermals noise and power draw in normal use

The tiny ABS package measures approximately 27.8x14.4x4mm and runs cool during typical low-duty transmissions. Current draw rises only during the brief 100mW transmit bursts, so average power stays modest on a small regulator. No fan or heatsink is required and the module produces no audible noise.

Highlights

  • Long-range wireless link up to 1000 m with spring antenna
  • 100 selectable channels across 433.4–473.0 MHz band
  • Adjustable 100 mW transmit power for flexible range control
  • Compact 27.8 × 14.4 × 4 mm module fits tight enclosures
  • Operates from 3.2 V to 5.5 V for broad compatibility

Specifications

No published specifications for this item yet.

Questions about this item

What comes in the package and what must be purchased separately?

The package includes one wireless module with a spring antenna. A 3.2V to 5.5V power supply and any host controller or wiring are not included and must be sourced separately.

How do I choose between the SI4438 and SI4463 versions listed in the title?

The module supports both SI4438 and SI4463 chipsets in a single hardware design; no separate version selection is required as the same unit covers the full 433.4 to 473.0MHz range with up to 100 channels.

What does the 1000m range figure mean when the module is installed in a real device?

The 1000m line-of-sight distance is achievable with the included spring antenna at 100mW transmit power; obstacles, interference and supply voltage will reduce the practical range in typical installations.

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

More in Internal Power Cables

Similar items

Same shelf, same checkout — eight coins and a 30-minute rate lock.