Humidity Sensor Switch, Air Moisture Detection for Ventilation Fan
The TOPGREENER TDHS5 is a bathroom fan switch that automatically controls the ventilation fan to reduce humidity. Bathroom fans are essential to get rid of condensation after a shower and to prevent the growth of bacteria. However, it is easy to forget about the fan and leave it running all day. This wastes energy and could cause an electrical fire. With the TDHS5, you will never have to worry about leaving the fan on again.
The humidity sensor switch works by detecting the levels of moisture in the air. Specific moisture levels will trigger the fan to automatically turn on or off so that your restroom receives proper ventilation. Once the humidity switch has turned it on, the ventilation fan will continue to operate for 30 minutes or until the humidity in the room has reduced to a more comfortable level.
The switch also features a manual button that allows you to turn the fan on and off at-will. In addition to bathrooms, the humidity sensor switch is ideal for laundry rooms, spas, or any other room with high humidity levels. The TDHS5 bathroom humidity switch replaces any light switch or receptacle outlet to help make your space more comfortable and energy-efficient. A neutral wire is required for installation. This wall switch is for single-pole use only. This product is UL listed and includes a one-year warranty.
Pair with a screwless or standard decorator wall plate.
Technical Specifications
| Sensor Technology | Automatically turns ventilation fan on and off according to humidity |
| Special Features | Manual ON/OFF switch bypasses sensor |
| Poles | Single-pole use only |
| Wiring | NEUTRAL WIRE REQUIRED |

JKM –
Great Product! The sensor automatically controls our bathroom exhaust fan so humidity levels stay in check. Eliminates the need to manually turn the fan on or off. Great for those people who forget to turn the fan on when showering!
W.G. –
I am wondering if you realize that the manual off and remaining off feature on the Humidity Sensor TDHS5-N is the most disliked and annoying feature on this otherwise great device?
So if someone turns on the fan manually when using the bathroom and then uses the same push button to turn it off when leaving the bathroom, it will stay off until it is reset. That means someone else has to check on the bathrooms periodically and reset that switch to automatic function, otherwise it will not control humidity automatically anymore when taking a shower.
This completely defies the purpose of automatic humidity control and renders that otherwise nice sensor pretty useless. If you read through the lowest ratings on the internet for this item carefully, you will notice that many of the more reasonable/meaningful complaints are rooted in this issue. What you call “a great feature” in your user instruction is the worst failure of this device (especially for people who forget to turn on the fan when showering, because those will also forget to check on the manual off functionality too).