---
product_id: 446166126
title: "dstfuy Wireless Remote Switch,AC 110V/120V/240V/40A Relay with Voltage Isolation,RF Remote Switch for High Power Water Pump,Dust Collector,Lighting Electrical Equipment with 984FT Long Range."
brand: "dstfuy"
price: "R1452"
currency: ZAR
in_stock: false
reviews_count: 5
category: "Dstfuy"
url: https://www.desertcart.co.za/products/446166126-dstfuy-wireless-remote-switch-ac-110v-120v-240v-40a-relay
store_origin: ZA
region: South Africa
---

# 40A high-power relay 984ft long RF range Secure learning code dstfuy Wireless Remote Switch,AC 110V/120V/240V/40A Relay with Voltage Isolation,RF Remote Switch for High Power Water Pump,Dust Collector,Lighting Electrical Equipment with 984FT Long Range.

**Brand:** dstfuy
**Price:** R1452
**Availability:** ❌ Out of Stock

## Summary

> 📶 Power your space wirelessly, control it effortlessly!

## Quick Answers

- **What is this?** dstfuy Wireless Remote Switch,AC 110V/120V/240V/40A Relay with Voltage Isolation,RF Remote Switch for High Power Water Pump,Dust Collector,Lighting Electrical Equipment with 984FT Long Range. by dstfuy
- **How much does it cost?** R1452 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/446166126-dstfuy-wireless-remote-switch-ac-110v-120v-240v-40a-relay)

## Best For

- dstfuy enthusiasts

## Why This Product

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

## Key Features

- • **Smart & Secure:** Advanced learning code technology ensures low interference and easy reprogramming for ultimate control confidence.
- • **Unmatched Range:** Control devices from up to 984 feet away—even through walls and floors—perfect for large homes or industrial spaces.
- • **Plug & Play Simplicity:** No complex setup—just connect to your circuit and start controlling instantly, no electrician needed.
- • **Powerhouse Performance:** Handles up to 30A load safely with transformer isolation for worry-free high-power control.
- • **Versatile Applications:** Ideal for water pumps, lighting, gates, and industrial equipment—upgrade your space with wireless convenience.

## Overview

The dstfuy Wireless Remote Switch features a robust 40A relay with transformer isolation for safe high-power device control. Utilizing RF technology, it offers an impressive 984ft control range through obstacles, secured by advanced learning code encryption. Designed for easy installation without technical hassle, it’s perfect for managing water pumps, lighting, gates, and more in both residential and industrial settings.

## Description

What are the features of the DIY remote control switch? 1.3000W high power, enough to meet the use of an electric water heater and high power pumping unit. 2.300 meters of remote control distance, easy to work in garden square farms and even factories. 3.This wireless switch only needs to be connected to the circuit, without complicated settings. Ordinary people can complete it. 4.Compact design, you don't need to take up a lot of space. Technical indicators: voltage:AC100V-240V(Single Phase) max load:30A working distance:300m Package Includes: 2 x remote controls 1 x Relay SwitchCable length of antenna: 4.3 inchesBattery model: alkaline 12V 23A 1 x Manual NOTE: 1.Connect the switch to the circuit,No matching remote control.

Review: Worked as advertised. Used to to add an exhaust fan heater to our bathroom. Rather than run a new line to a switch I just put this in series with the wire. I’m only triggering it from about 10 ft away, so can’t speak to the length of signal distance. Quality seemed decent, but there’s always a thought in the back of my mind that it might not really be 30A rated. I’ll let y’all know if my house burns down.
Review: I am stunned. I was only about 40% confident this AC remote light switch would work. It is a game changer. I bought it to turn on a security light outside my woodshop. It works perfectly! Range from the house is around 100 feet through several walls. I mounted the receiver inside the shop in the peek of the roof about 14 feet high and it works first time every time. However the two remotes each have their own channel. It is very helpful that the remotes are interchangeable so they can be left in 2 different locations to turn the light on with one and off with the other

## Features

- HIGH POWER LOAD:The Relay adopts 40A relay, which can load high-power electrical appliances.The relay is isolated by transformer, so it will not carry high voltage when outputting. Ensure safe and stable control.(Note:max load:30A)
- STRONG SIGNAL:Adopts RF technology ,this remote lighting switch can pass through walls, floors and doors, control receiver from any place within a reliable distance.Max range is up to 984ft with no obstacle.
- EASY TO CONTROL:Learning code has high-level security for its low repetitive rate and re-learn mode, it can delete the old code and re-learn a new code.There is a switch key on the relay.If the remote control get lost.You also can always control of it.
- HIGH SENSITIVITY- Sensitivity -114dBm,Stable and reliable performance,high receive sensitivity and anti-jamming capability.
- WIDE APPLICATION:This remote relay switch used in lamps,electric doors,water pumps, motors, windows,gate,industrial control and security industry and other fields.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08XQCLN4M |
| Best Sellers Rank | #213,848 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,734 in Electrical Wall Switches |
| Item model number | TO-03 |
| Manufacturer | dstfuy |
| Package Dimensions | 11.3 x 9.4 x 4.7 cm; 200 g |

## Product Details

- **Brand:** dstfuy
- **Colour:** Black
- **Max number of supported devices:** 1
- **Special features:** Ergonomic

## Images

![dstfuy Wireless Remote Switch,AC 110V/120V/240V/40A Relay with Voltage Isolation,RF Remote Switch for High Power Water Pump,Dust Collector,Lighting Electrical Equipment with 984FT Long Range. - Image 1](https://m.media-amazon.com/images/I/411KzzTeSvL.jpg)
![dstfuy Wireless Remote Switch,AC 110V/120V/240V/40A Relay with Voltage Isolation,RF Remote Switch for High Power Water Pump,Dust Collector,Lighting Electrical Equipment with 984FT Long Range. - Image 2](https://m.media-amazon.com/images/I/41IfJkSiPOS.jpg)
![dstfuy Wireless Remote Switch,AC 110V/120V/240V/40A Relay with Voltage Isolation,RF Remote Switch for High Power Water Pump,Dust Collector,Lighting Electrical Equipment with 984FT Long Range. - Image 3](https://m.media-amazon.com/images/I/518Yrsz+4kL.jpg)
![dstfuy Wireless Remote Switch,AC 110V/120V/240V/40A Relay with Voltage Isolation,RF Remote Switch for High Power Water Pump,Dust Collector,Lighting Electrical Equipment with 984FT Long Range. - Image 4](https://m.media-amazon.com/images/I/61CM+AEkmnL.jpg)
![dstfuy Wireless Remote Switch,AC 110V/120V/240V/40A Relay with Voltage Isolation,RF Remote Switch for High Power Water Pump,Dust Collector,Lighting Electrical Equipment with 984FT Long Range. - Image 5](https://m.media-amazon.com/images/I/61r8pTMnsVS.jpg)

## Questions & Answers

**Q: If input power is removed and re-applied does the load side start in the energized relay mode or off? can this be changed?**
A: No power, no connection.

**Q: Please send me a link for better range antenna if anyone know. Thanks**
A: Contact a ham radio club in your area.

**Q: Does the controller use bluetooth?**
A: No

**Q: Can I purchase extra/replacement remote transmitter to work with a single reciever?**
A: I can not find a way to contact the seller, I would like to purchase one or two extra remotes for this relay.  It works tremendously but I need at least one more remote. 

thanks

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by B***R on 11 January 2026*

Worked as advertised. Used to to add an exhaust fan heater to our bathroom. Rather than run a new line to a switch I just put this in series with the wire. I’m only triggering it from about 10 ft away, so can’t speak to the length of signal distance. Quality seemed decent, but there’s always a thought in the back of my mind that it might not really be 30A rated. I’ll let y’all know if my house burns down.

### ⭐⭐⭐⭐⭐ Review
*by B***A on 19 November 2025*

I am stunned. I was only about 40% confident this AC remote light switch would work. It is a game changer. I bought it to turn on a security light outside my woodshop. It works perfectly! Range from the house is around 100 feet through several walls. I mounted the receiver inside the shop in the peek of the roof about 14 feet high and it works first time every time. However the two remotes each have their own channel. It is very helpful that the remotes are interchangeable so they can be left in 2 different locations to turn the light on with one and off with the other

### ⭐⭐⭐⭐⭐ Review
*by C***O on 4 November 2023*

We have this on our well pump and it's great. We also have it on our water intake pump which is about 100' below our house and it works great. We are very happy with these and the 2 remote units don't share the same remote code so you don't accidentally turn on another pump with the other remote. They are easy to install and last a long time.

## Frequently Bought Together

- dstfuy Wireless Remote Switch,AC 110V/120V/240V/40A Relay with Voltage Isolation,RF Remote Switch for High Power Water Pump,Dust Collector,Lighting Electrical Equipment with 984FT Long Range.
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**Shop now:** [https://www.desertcart.co.za/products/446166126-dstfuy-wireless-remote-switch-ac-110v-120v-240v-40a-relay](https://www.desertcart.co.za/products/446166126-dstfuy-wireless-remote-switch-ac-110v-120v-240v-40a-relay)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-28*