---
product_id: 228169702
title: "– M20 Bluetooth Digital Lock,Unlock with Card, Code, App (Compatible with Alexa)(Right Hand Door Only)"
brand: "haifuan"
price: "€ 231.50"
currency: EUR
in_stock: true
url: https://www.desertcart.es/products/228169702-m20-bluetooth-digital-lock-unlock-with-card-code-app-compatible
store_origin: ES
region: Spain
---

# Unlimited App Users 150 Fingerprints 200 Cards – M20 Bluetooth Digital Lock,Unlock with Card, Code, App (Compatible with Alexa)(Right Hand Door Only)

**Brand:** haifuan
**Price:** € 231.50
**Availability:** ✅ In Stock

## Summary

> 🔑 Unlock the Future of Security!

## Quick Answers

- **What is this?** – M20 Bluetooth Digital Lock,Unlock with Card, Code, App (Compatible with Alexa)(Right Hand Door Only) by haifuan
- **How much does it cost?** € 231.50 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/228169702-m20-bluetooth-digital-lock-unlock-with-card-code-app-compatible)

## Best For

- haifuan enthusiasts

## Why This Product

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

## Key Features

- • **Robust Security:** Store up to 150 fingerprints and 200 physical cards for maximum security.
- • **Sleek & Durable:** Crafted from high-quality metal with a stylish black finish.
- • **Unlock Your Way:** Choose from fingerprints, M1 cards, passcodes, or the app for seamless access.
- • **User-Friendly Design:** Keypad illumination and passage mode for easy access anytime.
- • **Smart Home Integration:** Compatible with Alexa for voice-activated convenience (hub required).

## Overview

The HAIFUANM20 Bluetooth Digital Lock offers a versatile and secure locking solution for right-hand doors. With multiple unlocking methods including fingerprints, cards, and an app, it ensures convenience and safety. Designed for smart home integration, it works seamlessly with Alexa, making it a perfect fit for the modern professional.

## Description

HAIFUAN M20 Bluetooth Digital Lock,Unlock with Card, Code, App (Compatible with Alexa)(Right Hand Door Only)

## Features

- Handle Direction not Reversible,This Link Only for Right Hand Doors,Standard Latch(2 3/8" and 2 3/4" Reversible)
- Unlock with Fingerprints, M1 Card, Pass Code Mechanical Key or APP, Can be Operated Via Keypad or APP
- 150 fingerprints,150 Code Users ,200 Cards For Physical Memory, Unlimited App Users, Keypad illumination, Passage Mode(Always Keep Open) Available
- Remote Control Function(Hub Required, ASIN B07S91DGT2, Hub Sold Separately)
- Works with Alexa for Voice Control (Hub Required, Alexa Device and hub Sold Separately

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | WENZHOU HAIFUAN ZHUANGSHI CAILIAO YOUXIANGONGSI |
| Package Dimensions | 36.9 x 23.6 x 14.6 cm; 3.16 kg |
| Item model number | HFAM20B-R |
| Colour | Black |
| Style | Right Hand |
| Finish | Rust |
| Material | Metal |
| Shape | Rectangular |
| Number of Pieces | 5 |
| Special Features | App, Fingerprint Unlock, Keypad Smart Lock |
| Included Components | Battery, Key |
| Batteries included? | No |
| Batteries Required? | Yes |
| Item Weight | 3.16 kg |

## Product Details

- **Brand:** HAIFUAN
- **Special feature:** App, Fingerprint Unlock, Keypad Smart Lock
- **Lock type:** Key Lock, Keypad
- **Material:** Metal
- **Recommended uses for product:** Door

## Images

![– M20 Bluetooth Digital Lock,Unlock with Card, Code, App (Compatible with Alexa)(Right Hand Door Only) - Image 1](https://m.media-amazon.com/images/I/41jEGBozcIL.jpg)

## Available Options

This product comes in different **Style Name** options.

## Questions & Answers

**Q: I will be using a gateway hub. What is the maximum distance between the lock and the hub? Thank you.**
A: the closer the better, the signal will get weak with the distance, we suggest use it within 10 meters

**Q: How do you charge the battery and how long does it last?**
A: the battery will last about half a year to 1 year, depend on how often you use it, they are normal AA alkaline batteries, just replace them when the battery run out

**Q: I have charged batteries but hfam20b says battery power is low - any help please??**
A: please check the way you install the batteries, do not install it in a wrong way, the negative side of battery should connect with the spring side in battery case

**Q: Any suggestions as to best Lithium Rechargeable batteries for this lock?**
A: please use AA alkaline batteries, 4 batteries will last 6-12 month depend on how often you use it

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**Shop now:** [https://www.desertcart.es/products/228169702-m20-bluetooth-digital-lock-unlock-with-card-code-app-compatible](https://www.desertcart.es/products/228169702-m20-bluetooth-digital-lock-unlock-with-card-code-app-compatible)

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-02-21*