---
product_id: 644592812
title: "TOPGREENER Humidity Sensor Switch for Ventilation Fan, Air Moisture Detection, Bathroom Fan Automated Control, Neutral Wire Required, UL Listed, TDHS5, Gray"
brand: "topgreener"
price: "€ 64.41"
currency: EUR
in_stock: true
reviews_count: 13
category: "Topgreener"
url: https://www.desertcart.de/products/644592812-topgreener-humidity-sensor-switch-for-ventilation-fan-air-moisture-detection
store_origin: DE
region: Germany
---

# Fixed 20-minute fan runtime delay Supports 120VAC, 3A max fan load 3 humidity sensitivity levels (45%, 65%, 80%) TOPGREENER Humidity Sensor Switch for Ventilation Fan, Air Moisture Detection, Bathroom Fan Automated Control, Neutral Wire Required, UL Listed, TDHS5, Gray

**Brand:** topgreener
**Price:** € 64.41
**Availability:** ✅ In Stock

## Summary

> 💨 Breathe smarter, live fresher — automate your air with TOPGREENER!

## Quick Answers

- **What is this?** TOPGREENER Humidity Sensor Switch for Ventilation Fan, Air Moisture Detection, Bathroom Fan Automated Control, Neutral Wire Required, UL Listed, TDHS5, Gray by topgreener
- **How much does it cost?** € 64.41 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/644592812-topgreener-humidity-sensor-switch-for-ventilation-fan-air-moisture-detection)

## Best For

- topgreener enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Automation:** Set it and forget it—fan runs for a fixed 20 minutes after humidity drops, eliminating guesswork.
- • **Sleek & Reliable Design:** UL-listed with durable copper/brass contacts and a modern gray finish that blends seamlessly into any décor.
- • **Customizable Sensitivity:** Choose from three precise humidity thresholds to tailor ventilation exactly to your room’s needs.
- • **Smart Humidity Detection:** Automatically activates your ventilation fan when moisture spikes, keeping your space fresh and mold-free.
- • **Easy Installation with Neutral Wire:** Simple screw terminal setup for single-pole use, designed for professional-grade performance in your home.

## Overview

The TOPGREENER Humidity Sensor Switch (TDHS5) is a UL-listed, gray single-pole switch designed to automatically control ventilation fans based on three adjustable humidity levels (45%, 65%, 80%). It operates on 120VAC with a 3A max load, featuring a fixed 20-minute runtime delay after humidity normalizes. Ideal for bathrooms, basements, and laundry rooms, it requires a neutral wire for installation and offers reliable moisture-triggered fan control to prevent excess humidity and mold buildup.

## Description

Buy TOPGREENER Humidity Sensor Switch for Ventilation Fan, Air Moisture Detection, Bathroom Fan Automated Control, Neutral Wire Required, UL Listed, TDHS5, Gray: Accessories - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Incorrect programing instructions - Installed this humidity sensing switch replacing a really old school fan timer in our laundry room that had an analog clock in it with metal tabs to set time intervals. Installation was simple and wired up exactly as the old timer. Tested it by blowing on it and it immediately turned the fan on when sensing humidity from my breath. The instructions that came with it for programming are totally incorrect and mention being able to set the time for how long it runs, which is not possible. After researching this I actually found the correct installation guide online which states the time is runs is always 20 minutes and is not adjustable. You can only adjust the humidity sensitivity to three preset settings and that's it. Programming: - The fan button will be used for programming - Pay close attention to the LED lights as it will flash to indicate successful programming steps and each time the button is pressed while making selections. - After each step, there are only 20 seconds to make the next programming selection. If a selection has not been made, time will expire and the LED light will flash 3 times and exit programming mode. There’s only one Programmable Function Function 1: Humidity level (Humidity Range 45% 65% 80%) - Setting 1: Low humidity sensitivity 45% (requires little humidity to trigger) - Setting 2 (Default): Medium humidity sensitivity 65% - Setting 3: High humidity sensitivity 80% (requires high humidity to trigger) To program the humidity sensor, you must first enter programming mode: STEP 1: Enter Programming Mode Press and hold the fan button for eight seconds until the LED indicator comes on. STEP 2: Choose the Setting Press the fan button the same number of times as the Setting Number (For example: Press the button 2 times to select Medium detection 65%). After the last button is pressed the sensor will flash back the current setting for that function 10 times at two-second intervals. If no selection has been made, the device will exit programming mode. STEP 3: Save the Settings Press and Hold the fan button for eight seconds. The LED light will flash 3 times. indicating that the settings are saved then the load will turn OFF. Example: Change to Setting 3 (High humidity) 1. Press and hold the fan button for eight seconds until the LED indicator comes on 2. Press the fan button three times. The LED indicator should now blink three times every two seconds 3. Press and Hold the fan button for eight seconds. The LED light will flash 3 times indicating that the settings are saved then the load will turn OFF
Review: Worked for my project - The house I bought has a skylight shaft in the bathroom. The bathroom fan didn’t keep up so in the winter it would start “raining” from the skylight shaft when the steam hit the cold walls of the shaft when anyone took a long shower. I had two Panasonic whisper fans installed: One that replaced the original fan/light by the shower, and one in the shaft. We had a sensor switch installed too that would control both fans. The problem was that the sensor was located at the bathroom entrance with the light switch, so it never really worked correctly. I replaced the whisper fan in the shaft with a vent connected to a 4” inline exhaust fan located as high up the shaft as I could get it and purchased this switch to mount in the shaft to control it. The switch is doing what I expected which is a good thing, because accessing it isn’t easy. Install was easy. Instructions were clear. You do need a neutral wire for any humidity sensor, so make sure you pull one and hook it up.

## Features

- Sensor switch detects excess humidity and automatically turns the ventilation fan on. Perfect for high humidity locations such as the bathroom, laundry room, basement, etc.
- Humidity control switch turns fan ON automatically when humidity exceeds preset level and turns it OFF after it drops to normal to eliminate excess humidity.
- The humidity sensor has three levels to choose from (low, medium, high) to suit specific ventilation needs of the room. Bypass the humidity sensor by manually turning the fan off when it is on.
- Time delay of 20 minutes; features a manual ON/OFF switch to bypass the humidity sensor.
- Gray color; Neutral wire required. Single-pole use only. 120VAC. 3A maximum fan load.45%-80% humidity range. 1-year warranty, UL-Listed

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07YBKTLP4 |
| Best Sellers Rank | #20,457 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #70 in Humidifier Accessories |
| Brand | TOPGREENER |
| Circuit Type | 1-way |
| Color | Gray |
| Compatible Devices | Ventilation fan |
| Connector Type | Screw Terminals |
| Contact Material | Copper,brass |
| Contact Type | Normally Open |
| Control Method | Touch |
| Control Type | Adjustable |
| Controller Type | Push Button |
| Current Rating | 3 Amps |
| Date First Available | September 24, 2019 |
| Item Weight | 5 ounces |
| Item model number | TDHS5 |
| Manufacturer | TOPGREENER |
| Number of Items | 1 |
| Number of Positions | 1 |
| Operating Voltage | 120 Volts (AC) |
| Operation Mode | ON-OFF |
| Package Dimensions | 4.61 x 2.52 x 2.4 inches |
| Terminal | Screw |
| UPC | 883951459147 |
| Unit Count | 1 Count |
| Wattage | 75 watts |

## Product Details

- **Brand:** TOPGREENER
- **Circuit Type:** 1-way
- **Connector Type:** Screw Terminals
- **Contact Type:** Normally Open
- **Current Rating:** 3 Amps
- **Material:** Plastic
- **Operating Voltage:** 120 Volts (AC)
- **Operation Mode:** ON-OFF
- **Switch Type:** Toggle
- **Terminal:** Screw

## Images

![TOPGREENER Humidity Sensor Switch for Ventilation Fan, Air Moisture Detection, Bathroom Fan Automated Control, Neutral Wire Required, UL Listed, TDHS5, Gray - Image 1](https://m.media-amazon.com/images/I/31MBD-3bPyS.jpg)
![TOPGREENER Humidity Sensor Switch for Ventilation Fan, Air Moisture Detection, Bathroom Fan Automated Control, Neutral Wire Required, UL Listed, TDHS5, Gray - Image 2](https://m.media-amazon.com/images/I/31aywB5Or3S.jpg)
![TOPGREENER Humidity Sensor Switch for Ventilation Fan, Air Moisture Detection, Bathroom Fan Automated Control, Neutral Wire Required, UL Listed, TDHS5, Gray - Image 3](https://m.media-amazon.com/images/I/41-DbG5RDHS.jpg)
![TOPGREENER Humidity Sensor Switch for Ventilation Fan, Air Moisture Detection, Bathroom Fan Automated Control, Neutral Wire Required, UL Listed, TDHS5, Gray - Image 4](https://m.media-amazon.com/images/I/41aQe345dkS.jpg)
![TOPGREENER Humidity Sensor Switch for Ventilation Fan, Air Moisture Detection, Bathroom Fan Automated Control, Neutral Wire Required, UL Listed, TDHS5, Gray - Image 5](https://m.media-amazon.com/images/I/516I6ZdAyOS.jpg)

## Available Options

This product comes in different **Color, Number Of Items** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Incorrect programing instructions
*by N***Y on March 10, 2024*

Installed this humidity sensing switch replacing a really old school fan timer in our laundry room that had an analog clock in it with metal tabs to set time intervals. Installation was simple and wired up exactly as the old timer. Tested it by blowing on it and it immediately turned the fan on when sensing humidity from my breath. The instructions that came with it for programming are totally incorrect and mention being able to set the time for how long it runs, which is not possible. After researching this I actually found the correct installation guide online which states the time is runs is always 20 minutes and is not adjustable. You can only adjust the humidity sensitivity to three preset settings and that's it. Programming: - The fan button will be used for programming - Pay close attention to the LED lights as it will flash to indicate successful programming steps and each time the button is pressed while making selections. - After each step, there are only 20 seconds to make the next programming selection. If a selection has not been made, time will expire and the LED light will flash 3 times and exit programming mode. There’s only one Programmable Function Function 1: Humidity level (Humidity Range 45% 65% 80%) - Setting 1: Low humidity sensitivity 45% (requires little humidity to trigger) - Setting 2 (Default): Medium humidity sensitivity 65% - Setting 3: High humidity sensitivity 80% (requires high humidity to trigger) To program the humidity sensor, you must first enter programming mode: STEP 1: Enter Programming Mode Press and hold the fan button for eight seconds until the LED indicator comes on. STEP 2: Choose the Setting Press the fan button the same number of times as the Setting Number (For example: Press the button 2 times to select Medium detection 65%). After the last button is pressed the sensor will flash back the current setting for that function 10 times at two-second intervals. If no selection has been made, the device will exit programming mode. STEP 3: Save the Settings Press and Hold the fan button for eight seconds. The LED light will flash 3 times. indicating that the settings are saved then the load will turn OFF. Example: Change to Setting 3 (High humidity) 1. Press and hold the fan button for eight seconds until the LED indicator comes on 2. Press the fan button three times. The LED indicator should now blink three times every two seconds 3. Press and Hold the fan button for eight seconds. The LED light will flash 3 times indicating that the settings are saved then the load will turn OFF

### ⭐⭐⭐⭐⭐ Worked for my project
*by S***L on December 9, 2023*

The house I bought has a skylight shaft in the bathroom. The bathroom fan didn’t keep up so in the winter it would start “raining” from the skylight shaft when the steam hit the cold walls of the shaft when anyone took a long shower. I had two Panasonic whisper fans installed: One that replaced the original fan/light by the shower, and one in the shaft. We had a sensor switch installed too that would control both fans. The problem was that the sensor was located at the bathroom entrance with the light switch, so it never really worked correctly. I replaced the whisper fan in the shaft with a vent connected to a 4” inline exhaust fan located as high up the shaft as I could get it and purchased this switch to mount in the shaft to control it. The switch is doing what I expected which is a good thing, because accessing it isn’t easy. Install was easy. Instructions were clear. You do need a neutral wire for any humidity sensor, so make sure you pull one and hook it up.

### ⭐⭐⭐⭐ Works well as advertised
*by S***Z on July 28, 2025*

This is a good little device to help manage moisture in the shower, eliminating the need to replace the fan itself with a moisture sensing one, which are quite expensive and harder ti install. This device is easy to install by replacing the toggle switch on the wall (perfect fit) and, for me, the setting was appropriate right out of the box, turning on the fan when moisture is detected and going off automatically. Happy with the purchase.

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-02-28*