---
product_id: 641973024
title: "XPR3SS AT4PW 100A Single Phase Smart Life Tuya WIFI Din Rail Smart Switch Remote Control AC 220V 110V Digital Power Energy Volt Amp Kwh Frequency Factor Meter"
brand: "xpr3ss"
price: "₩113561"
currency: KRW
in_stock: true
reviews_count: 8
category: "Xpr3 Ss"
url: https://www.desertcart.kr/products/641973024-xpr3ss-at4pw-100a-single-phase-smart-life-tuya-wifi-din
store_origin: KR
region: South Korea
---

# Over/under voltage & current protection Real-time multi-metric LCD display 100A WiFi remote control XPR3SS AT4PW 100A Single Phase Smart Life Tuya WIFI Din Rail Smart Switch Remote Control AC 220V 110V Digital Power Energy Volt Amp Kwh Frequency Factor Meter

**Brand:** xpr3ss
**Price:** ₩113561
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up your smart home with precision & control — anytime, anywhere!

## Quick Answers

- **What is this?** XPR3SS AT4PW 100A Single Phase Smart Life Tuya WIFI Din Rail Smart Switch Remote Control AC 220V 110V Digital Power Energy Volt Amp Kwh Frequency Factor Meter by xpr3ss
- **How much does it cost?** ₩113561 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/641973024-xpr3ss-at4pw-100a-single-phase-smart-life-tuya-wifi-din)

## Best For

- xpr3ss enthusiasts

## Why This Product

- Trusted xpr3ss brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Multi-User & Group Management:** Share control with tenants or family, track consumption by day/month/year, and manage power budgets remotely.
- • **Dynamic Multi-Data LCD Display:** Monitor voltage, current, power, frequency, and environmental data on a crisp color screen.
- • **Effortless DIN Rail Installation:** Universal 35mm guide rail clip-on design for quick, screw-free setup in any smart home panel.
- • **Seamless Unlimited Remote Control:** Connect once, control your power anywhere with SmartLife app integration.
- • **Robust Safety Alerts & Auto Shutdown:** Stay protected with threshold alarms and automatic power-off for over/under voltage and current.

## Overview

The XPR3SS AT4PW is a 100A single-phase smart WiFi energy meter and switch designed for professional-grade remote power management. Featuring a vivid LCD screen displaying voltage, current, power, frequency, and environmental data, it supports real-time monitoring and control via the SmartLife app. Its universal DIN rail mount and advanced safety protections make it ideal for modern smart homes and rental properties seeking efficient energy tracking and automated power safety.

## Description

Key operation instructions 1. Click the "+" or "-" button to switch to other functional test interfaces 2. Long press the "M" key to enter the background, click the "+" or "-" key to switch between languages, Click the "M" key to switch to the next option, click the "+" or "-" key to set Numerical value 3. Long press the "+" or "-" button the device turn ON or OFF 4. Click the "+" or "-" button to switch to the electricity bill setting interface, and then click the "M" button to set the unit price of the electricity bill. Click the "+" or "-" button to adjust the value. Long press "M" key to confirm OK! 5. Click the "+" or "-" button to switch to the security protection setting interface, and then click the "M" button to set the overvoltage protection, overpower protection, and undervoltage protection, click "+" or "-" key to adjust the value, long press the "M" key to confirm OK! Specifications: Name: Power Meter Material: plastics Version: Wifi version APP: SmartLife APP Voltage: AC85-265V, 50/60Hz Current: 0-100A Power: 0-26.5KW Item size: 97 * 76 * 76mm / 3.82 * 2.99 * 2.99in Item weight: 300g / 10.58ounce

Review: Excellent product / Excellent Performance - This product is simply Superb. We are observing the energy consumption of our Apartment with out any effort through this WiFi energy meter. Earlier we are carrying a clamp Meter for every electrical problem. Now this meter made it simple. It has many other important features like over voltage, under voltage, over current. We can switch on/off remotely through Wifi also. But this is small to carry 80 Amps load. Now we are using for 20 Amps load. It's working very good.
Review: Good Product - Go For It - I recently purchased XPR3SS 80Amp KWS-306WF meter, got it installed in November 2025. So far, it is looking good; it is connected to my WiFi to control my 3 phase steam unit. I can track energy consumption and operate connected devices remotely. It's ideal for people who want to control the electricity consumption of electric products, especially those who can't be physically present. Built quality is good. I found one error, that the volt meter reading of this product has error as it shows higher voltage by 5-6 volts per phase… i checked it with my own multi meter. But i can live with it and do settings accordingly. I feel that they should give a better manual on how to get started with wifi, as there is no mention of usage with the Smart Life app and how to configure it. For beginners, it will become difficult to get started. A tutorial video will definitely help.

## Features

- The host is linked to WiFi once, then unlimited distance control and measurement and power statistics can be obtained. LCD screen network display PM2.5 concentration, temperature, humidity, calendar, time, week and other data. Easy electricity management, the product connected to the WiFi account, easy access to the Internet, only need to pair it once with its memory function, further on automatically connects to the wifi, easy to use.
- Clear definition LCD color screen which can display a variety of content, such as detection of voltage, current, power, electricity, frequency, power factor, measurement data. Adopt universal 35mm standard guide rail installation, no screws required, buckle fixation, convenient installation.
- Support threshold value setting, dual alert of buzzer and interface display when over limits, over voltage, over current, under voltage display alarm and automatic power off, power safety. Two control modes design, support remote manual control, as well as adding multiple groups of timing automatic control, multiple groups of countdown automatic control.
- Share management, multiple controls design, support one cellphone to control multiple switches at the same time. Landlord tenant different roles group management, support pre-saved electricity, low remaining power, automatic power off. With remote meter reading by cellphone, view the electricity consumption of tenants/daily/monthly/annual through mobilephone APP, real-time records of daily, monthly, annual electricity consumption, so that electricity spending can be tracked.
- With the power data clearing function, it is convenient to test the power consumption of home appliances and electrical equipment, and the power data can also be zeroed remotely by your cellphone.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CYWX2MQ3 |
| Best Sellers Rank | #2,745 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #4 in Industrial Power Meters |
| Brand | XPR3SS |
| Circuit Breaker Type | Standard |
| Colour | White |
| Country of Origin | China |
| Current Rating | 100 Amps |
| Customer Reviews | 4.0 4.0 out of 5 stars (248) |
| Date First Available | 23 March 2024 |
| Generic Name | Energy Meter |
| Importer | XPR3SS, Bengaluru |
| Included Components | Circuit breaker |
| Item Weight | 250 g |
| Item model number | AT4PW |
| Manufacturer | Liushi Town,Yueqing City, Zhejiang, Yueqing Taixin Electric Co., Ltd. |
| Model number | AT4PW |
| Mounting Type | DIN Rail Mount |
| Net Quantity | 1.00 Count |
| Number Of Poles | 1 |
| Number of Memory Sticks | 1 |
| Packer | XPR3SS, Bengaluru |
| Product Dimensions | 9.7D x 7.6W x 7.6H Centimeters |

## Product Details

- **Brand:** XPR3SS
- **Circuit Breaker Type:** Standard
- **Current Rating:** 100 Amps
- **Mounting Type:** DIN Rail Mount
- **Product Dimensions:** 9.7D x 7.6W x 7.6H Centimeters

## Images

![XPR3SS AT4PW 100A Single Phase Smart Life Tuya WIFI Din Rail Smart Switch Remote Control AC 220V 110V Digital Power Energy Volt Amp Kwh Frequency Factor Meter - Image 1](https://m.media-amazon.com/images/I/71Qg2UN4gsL.jpg)
![XPR3SS AT4PW 100A Single Phase Smart Life Tuya WIFI Din Rail Smart Switch Remote Control AC 220V 110V Digital Power Energy Volt Amp Kwh Frequency Factor Meter - Image 2](https://m.media-amazon.com/images/I/71BIU4xw4ZL.jpg)
![XPR3SS AT4PW 100A Single Phase Smart Life Tuya WIFI Din Rail Smart Switch Remote Control AC 220V 110V Digital Power Energy Volt Amp Kwh Frequency Factor Meter - Image 3](https://m.media-amazon.com/images/I/71U7v8s7VTL.jpg)
![XPR3SS AT4PW 100A Single Phase Smart Life Tuya WIFI Din Rail Smart Switch Remote Control AC 220V 110V Digital Power Energy Volt Amp Kwh Frequency Factor Meter - Image 4](https://m.media-amazon.com/images/I/61APaAwyP8L.jpg)
![XPR3SS AT4PW 100A Single Phase Smart Life Tuya WIFI Din Rail Smart Switch Remote Control AC 220V 110V Digital Power Energy Volt Amp Kwh Frequency Factor Meter - Image 5](https://m.media-amazon.com/images/I/51-J7RJcyfL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent product / Excellent Performance
*by K***N on 31 January 2026*

This product is simply Superb. We are observing the energy consumption of our Apartment with out any effort through this WiFi energy meter. Earlier we are carrying a clamp Meter for every electrical problem. Now this meter made it simple. It has many other important features like over voltage, under voltage, over current. We can switch on/off remotely through Wifi also. But this is small to carry 80 Amps load. Now we are using for 20 Amps load. It's working very good.

### ⭐⭐⭐⭐ Good Product - Go For It
*by V***N on 28 November 2025*

I recently purchased XPR3SS 80Amp KWS-306WF meter, got it installed in November 2025. So far, it is looking good; it is connected to my WiFi to control my 3 phase steam unit. I can track energy consumption and operate connected devices remotely. It's ideal for people who want to control the electricity consumption of electric products, especially those who can't be physically present. Built quality is good. I found one error, that the volt meter reading of this product has error as it shows higher voltage by 5-6 volts per phase… i checked it with my own multi meter. But i can live with it and do settings accordingly. I feel that they should give a better manual on how to get started with wifi, as there is no mention of usage with the Smart Life app and how to configure it. For beginners, it will become difficult to get started. A tutorial video will definitely help.

### ⭐⭐⭐⭐⭐ Good product which consolidates multiple devices into one
*by A***R on 1 November 2025*

This product is multifunctional, combining several features into a single device. It serves as an energy meter while also offering over/under voltage protection, overcurrent protection, and leakage current protection—functions typically handled by separate devices like RCCBs. Essentially, it consolidates multiple devices into one, which is quite convenient. So far, the smart meter has performed well, and I’m satisfied with its functionality. I’ve tested its voltage, current, and leakage current protection features, and they work as advertised. The auto-reconnect feature is particularly useful, as it automatically restores the connection once the fault condition is resolved. Wi-Fi connectivity has been reliable, with only one instance where the device went offline. Restarting the main power supply resolved the issue quickly. The device’s display provides most of the essential information, although it doesn’t show real-time power usage (kW). To view this, you either need to calculate it manually using voltage and current readings or check the Smart Life app. The app offers useful statistics such as daily, monthly, and yearly kWh consumption graphs. However, it would be even better if it also tracked and displayed trends for other parameters like power, voltage, current, and leakage current. Device settings can be configured either directly on the unit or through the app, which adds flexibility. That said, the app’s font and color scheme—especially on the energy statistics screen—could be improved for better readability. Hopefully, future updates will include customization options for the theme. The leakage current protection feature is excellent and can be disabled if needed. During testing, I noticed that while voltage and current protection alarms were logged correctly in the app, the leakage current alarm wasn’t recorded—likely a bug that needs addressing. One caution regarding the “Remote ON/OFF” feature: while you can turn the device off remotely via the app, turning it back on isn’t possible if your Wi-Fi router is powered by the same supply. In such cases, manual intervention is required to restore power. Overall, it’s a solid product and I’ve had no issues so far. I hope it continues to perform reliably over time. For configuration-related queries, I contacted the seller and was impressed by their prompt and helpful response. They even provided a video demonstration, which made the setup process much easier.

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-24*