---
product_id: 70037043
title: "Sunhokey Ra-02 SX1278 Wireless Module 433MHz Wireless Serial Port Module UART Interface LoRa Spread Spectrum Module"
brand: "sunhokey"
price: "€ 0.12"
currency: EUR
in_stock: false
url: https://www.desertcart.fi/products/70037043-sunhokey-ra-02-sx1278-wireless-module-433mhz-wireless-serial-port
store_origin: FI
region: Finland
---

# Sunhokey Ra-02 SX1278 Wireless Module 433MHz Wireless Serial Port Module UART Interface LoRa Spread Spectrum Module

**Brand:** sunhokey
**Price:** € 0.12
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** Sunhokey Ra-02 SX1278 Wireless Module 433MHz Wireless Serial Port Module UART Interface LoRa Spread Spectrum Module by sunhokey
- **How much does it cost?** € 0.12 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/70037043-sunhokey-ra-02-sx1278-wireless-module-433mhz-wireless-serial-port)

## Best For

- sunhokey enthusiasts

## Why This Product

- Trusted sunhokey brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Description: Ra-02 is based on SX1278 wireless transparent transmission module (transceiver one), socket it can connect external antenna. Using advanced LoRa spread spectrum technology, communication distance is10000 meters, super error correction, anti-interference ability, with the air wake-up function (ultra-low power consumption). It can be used in the enviroment with thousands of people,especially for meter reading, smart home, burglar alarm and other equipment. Feature: LoRa Spread Spectrum Modulation Technology +20dBm-100mW Constant RF power output when voltage changes High sensitivity: low to -148dBm Half-duplex SPI communication Programmable bit rates up to 300kbps Supports FSK, GFSK, MSK, GMSK, LoRa and OOK modulation modes 127dB RSSI dynamic range Automatic RF signal detection, CAD mode and ultra-high-speed AFC With CRC, up to 256 bytes of packet engine Small volume dual-row stamp-hole patch package With shielding shell Spring antenna (Ra-01) external antenna (Ra-02) Specification: Wireless standard 433MHz Frequency range: 420 ~ 450MHz Interface: SPI GPIO Voltage:1.8 ~ 3.7V, the typical value is 3.3V Current: Receiver:≦ 10.8mA (LnaBoost off, band 1) Transimit: ≦ 120mA (+ 20dBm) Sleep mode: 0.2μA Working temperature: -40 to + 85 ° C Storage temperature: normal

## Features

- LoRa Spread Spectrum Modulation Technology +20dBm-100mW Constant RF power output when voltage changes
- High sensitivity: low to -148dBm
- Half-duplex SPI communication
- Programmable bit rates up to 300kbps

## Images

![Sunhokey Ra-02 SX1278 Wireless Module 433MHz Wireless Serial Port Module UART Interface LoRa Spread Spectrum Module - Image 1](https://m.media-amazon.com/images/I/61Z3Lq3mzrL.jpg)
![Sunhokey Ra-02 SX1278 Wireless Module 433MHz Wireless Serial Port Module UART Interface LoRa Spread Spectrum Module - Image 2](https://m.media-amazon.com/images/I/513m8GkTEtL.jpg)
![Sunhokey Ra-02 SX1278 Wireless Module 433MHz Wireless Serial Port Module UART Interface LoRa Spread Spectrum Module - Image 3](https://m.media-amazon.com/images/I/61lF50f8b+L.jpg)
![Sunhokey Ra-02 SX1278 Wireless Module 433MHz Wireless Serial Port Module UART Interface LoRa Spread Spectrum Module - Image 4](https://m.media-amazon.com/images/I/51Cgzpa8XcL.jpg)

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**Shop now:** [https://www.desertcart.fi/products/70037043-sunhokey-ra-02-sx1278-wireless-module-433mhz-wireless-serial-port](https://www.desertcart.fi/products/70037043-sunhokey-ra-02-sx1278-wireless-module-433mhz-wireless-serial-port)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-15*