---
product_id: 565063128
title: "Hendun Upgraded Power Failure Alarm, GFCI Circuit Failed Dector Alerter, Smart Power Outage Reminder for Freezer in Garage, Monitor Power Cut of CPAP, Breaker and GFI/GFCI Trip Alarm"
brand: "hendun"
price: "229 zł"
currency: PLN
in_stock: true
url: https://www.desertcart.pl/products/565063128-hendun-upgraded-power-failure-alarm-gfci-circuit-failed-dector-alerter
store_origin: PL
region: Poland
---

# 100-240V wide voltage range Tri-color LED voltage indicator 108dB ultra-loud alarm Hendun Upgraded Power Failure Alarm, GFCI Circuit Failed Dector Alerter, Smart Power Outage Reminder for Freezer in Garage, Monitor Power Cut of CPAP, Breaker and GFI/GFCI Trip Alarm

**Brand:** hendun
**Price:** 229 zł
**Availability:** ✅ In Stock

## Summary

> ⚡ Stay powered, stay protected — never get caught in the dark again!

## Quick Answers

- **What is this?** Hendun Upgraded Power Failure Alarm, GFCI Circuit Failed Dector Alerter, Smart Power Outage Reminder for Freezer in Garage, Monitor Power Cut of CPAP, Breaker and GFI/GFCI Trip Alarm by hendun
- **How much does it cost?** 229 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/565063128-hendun-upgraded-power-failure-alarm-gfci-circuit-failed-dector-alerter)

## Best For

- hendun enthusiasts

## Why This Product

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

## Key Features

- • **Multi-Device Protection:** Safeguards freezers, CPAP machines, sump pumps, and GFCI outlets from unexpected outages and surges.
- • **Smart Voltage Monitoring:** Tri-color LED instantly signals normal, high, or low voltage to keep you informed at a glance.
- • **Instant High-Decibel Alert:** 108dB alarm ensures you never miss a power failure, protecting your valuables and peace of mind.
- • **Effortless Plug & Play Setup:** No complicated installation—just plug in and stay connected to your power status 24/7.
- • **Universal Voltage Compatibility:** Works seamlessly with any 100-240V outlet, perfect for garages, basements, and more.

## Overview

The Hendun Upgraded Power Failure Alarm is a compact, easy-to-use device that plugs into any 100-240V outlet to monitor power supply disruptions. Featuring a piercing 108dB alarm and a tri-color LED voltage indicator, it alerts you instantly to outages, voltage irregularities, and GFCI trips. Ideal for safeguarding freezers, CPAP machines, sump pumps, and other critical appliances, this smart alarm helps prevent costly losses and keeps your home running smoothly.

## Description

Hendun Upgraded Power Failure Alarm, GFCI Circuit Failed Dector Alerter, Smart Power Outage Reminder for Freezer in Garage, Monitor Power Cut of CPAP, Breaker and GFI/GFCI Trip Alarm

## Features

- ✅ SIMPLY AND EASILY - Just plug the powerout alarm into any 100-240V socket or power cable and easily monitor the power supply to your basement freezer / fridge, pump, oxygenerator,CPAP, aquarium
- ✅ VARIOUS ALARM METHODS - Accompanied by a 108 dB noise alert and a bright tri-colour flashing light with various adjustable tones and volumes
- ✅ VOLTAGE ABNORMALITY MONITORING- There is an LED strip to indicate the voltage status. Green indicates normal, red indicates high voltage and blue indicates low voltage
- ✅ ECONOMICAL INVESTMENT- the circuit testers reduces losses when you experience power outages / surge or accidents.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Battery description | Alkaline |
| Voltage | 240 Volts |
| Control method | Touch |
| Noise level | 108 Decibels |
| Mounting type | Tabletop Mount |
| Sensor technology | Voltage Sensor |
| Manufacturer | Changzhou Hengdun Electronic Technology Co Ltd |
| Item Weight | 91 g |
| Product Dimensions | 5.84 x 5.84 x 7.11 cm; 91 g |
| Item model number | hnfpa |
| Color | Blue,Green,Red |
| Installation Method | Dashboard Mount |
| Item Package Quantity | 1 |
| Included components | Detector |
| Batteries Included? | No |
| Batteries Required? | No |
| tech_spec_battery_description_toys | Alkaline |

## Product Details

- **Colour:** Blue,Green,Red
- **Brand:** HENDUN
- **Power source:** Battery Powered
- **Compatible devices:** [Inferred] Devices mentioned in product description
- **Product dimensions:** 5.8L x 5.8W x 7.1H centimeters

## Images

![Hendun Upgraded Power Failure Alarm, GFCI Circuit Failed Dector Alerter, Smart Power Outage Reminder for Freezer in Garage, Monitor Power Cut of CPAP, Breaker and GFI/GFCI Trip Alarm - Image 1](https://m.media-amazon.com/images/I/51DhlCQPtUL.jpg)

## Available Options

This product comes in different **Model** options.

## Questions & Answers

**Q: Does this device have an alert when the batteries need to be replaced?**
A: Thank you very much for your interest in our HENDUN power failure alarms.
It has a low voltage alert function.
Beeps “Du-Du” sound every 30 minutes when battery-voltage is lower than 3.6V.  Please change the batteries in time or use rechargeable batteries.

**Q: How does this plug into "any 240v outlet" when 240v has a different prong configuration.  Is an adapter included?**
A: Thank you very much for your interest in HENDUN power failure alarm.
The plug of the alarm is shown in the video. If it can't plug into 240V outlet directly, please use it after plugging in the converter on 240V outlet first.
The adapter is not included.
Thanks again.

**Q: Will this alert your phone, if outlet trips?**
A: Thank you very much for your interest in HENDUN power failure alarm.

When the outlet trips, only the local alert will be sent, and the mobile phone cannot receive the alert.

**Q: It states the working temperature is from -23f - about 15f.  texas garages can be over 100f in the summer time. what is the real working temperature?**
A: Thank you very much for your interest in our blackout alarms.
Because of our mistake, the working temperature was described wrongly, it should be: 14 ~ 140℉

## Frequently Bought Together

- Hendun Upgraded Power Failure Alarm, GFCI Circuit Failed Dector Alerter, Smart Power Outage Reminder for Freezer in Garage, Monitor Power Cut of CPAP, Breaker and GFI/GFCI Trip Alarm
- Power Failure Alarm for Freezer, Briidea Power Outage Alarm with LED Indicator Lights and 80-120dB Adjustable Alarm, Perfect for Monitoring Refrigerators, Freezers, and Sewage, MK-077
- Briidea Power Failure Alarm with LED Indicator & 80dB Siren, Powered by Rechargeable Battery (included), Perfect for Monitoring Refrigerators, Freezers, Sump Pumps, Aquariums

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.pl/products/565063128-hendun-upgraded-power-failure-alarm-gfci-circuit-failed-dector-alerter](https://www.desertcart.pl/products/565063128-hendun-upgraded-power-failure-alarm-gfci-circuit-failed-dector-alerter)

---

*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-02-05*