---
product_id: 544621209
title: "KONNWEI KW903 ELM327 WiFi ODB2 Code Reader Diagnostic Scan Tool for iPhone Android PC Auto Code Scanner (Black red)"
brand: "konnwei"
price: "HK$325"
currency: HKD
in_stock: true
url: https://www.desertcart.hk/products/544621209-konnwei-kw903-elm327-wifi-odb2-code-reader-diagnostic-scan-tool
store_origin: HK
region: Hong Kong
---

# Low power 0.75W with power switch WiFi AdHoc mode, 50 ft range Supports 1996+ vehicles, multi-protocol KONNWEI KW903 ELM327 WiFi ODB2 Code Reader Diagnostic Scan Tool for iPhone Android PC Auto Code Scanner (Black red)

**Brand:** konnwei
**Price:** HK$325
**Availability:** ✅ In Stock

## Summary

> 🚗 Unlock your car’s secrets with KONNWEI KW903 – Drive smarter, not harder!

## Quick Answers

- **What is this?** KONNWEI KW903 ELM327 WiFi ODB2 Code Reader Diagnostic Scan Tool for iPhone Android PC Auto Code Scanner (Black red) by konnwei
- **How much does it cost?** HK$325 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/544621209-konnwei-kw903-elm327-wifi-odb2-code-reader-diagnostic-scan-tool)

## Best For

- konnwei enthusiasts

## Why This Product

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

## Key Features

- • **Developer Friendly:** Fully documented AT commands let you customize or create your own diagnostic software.
- • **Power-Saving Design:** Built-in power switch and low 0.75W consumption keep your battery safe and device ready.
- • **Seamless WiFi Connectivity:** Connect effortlessly to iPhone, Android, or PC within 50 ft range for real-time diagnostics.
- • **Comprehensive Engine Monitoring:** Track vital stats like RPM, fuel consumption, coolant temp, and more with compatible apps.
- • **Universal Vehicle Compatibility:** Works with all 1996 and newer vehicles, decoding multiple protocols automatically.

## Overview

The KONNWEI KW903 is a compact, WiFi-enabled OBD2 scanner compatible with vehicles from 1996 onward. It connects wirelessly to iPhone, Android, or PC devices within a 50 ft range using adHoc mode, providing real-time access to engine parameters like RPM, fuel consumption, and coolant temperature. Featuring a low power consumption design with a built-in power switch, it supports multiple protocols and offers full AT command documentation for advanced customization.

## Description

KW903 ELM327 WiFi ODB2 Code Reader Diagnostic Scan Tool for iPhone Android PC Auto Code Scanner (Black red)

## Features

- It use AT commands to communicate with a host device, It is compatible with 1996 and later vehicles. Connecting to your host device is made by WIFI connection in adHoc mode.
- There are plenty of software packages available, which are fully compatible withCLK.
- Some of them have pretty useful features, such as engine running parameters monitoring, DTC reading and clearing, MPG meter, etc.
- You can even write your own software on a specified hardware platform if you wish, because the AT commands are fully documented and very well explained.
- It also comes included with a power switch built-in to prevent the need for having to

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | China |
| Brand | KONNWEI |
| Package Dimensions | 12.2 x 7.2 x 3.7 cm; 78 g |
| Manufacturer reference | KW903 |
| Manufacturer Part Number | KW903 |
| Item Weight | 78 g |

## Product Details

- **Brand:** KONNWEI
- **Power source:** Battery Powered
- **Operating system:** Android 4.4
- **Manufacturer:** China

## Images

![KONNWEI KW903 ELM327 WiFi ODB2 Code Reader Diagnostic Scan Tool for iPhone Android PC Auto Code Scanner (Black red) - Image 1](https://m.media-amazon.com/images/I/61w-WLaq-5L.jpg)

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**Shop now:** [https://www.desertcart.hk/products/544621209-konnwei-kw903-elm327-wifi-odb2-code-reader-diagnostic-scan-tool](https://www.desertcart.hk/products/544621209-konnwei-kw903-elm327-wifi-odb2-code-reader-diagnostic-scan-tool)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-05-18*