Condensation can turn a bathroom into a mold factory that ruins tile and triggers allergies. DewStop's weather-prediction software turns on the bathroom fan when temperature and humidity levels get too high, and it predicts how long the fan should run based on how much water vapor is in the air, so the fan won't waste energy or shut off too quickly. And whereas other detectors require installing a new ventilation system, DewStop easily connects to existing bathroom fans.
          ~Popular Science Magazine

No More Mold - Mold can wreak havoc in any home, causing harm to the entire family, but now there is a new automatic fan switch called DewStop to help solve that issue. The DewStop senses steam and moisture and automatically offers ventilation. It turns on and off when needed to stop the spread of mold. The DewStop is simple to install and can be found at Ace Hardware.
          ~Parent Guide News

Even if you can't embark on a major remodel, you can still go green in your bath. Reduce the energy used by your bath's existing vent fan with DewStop, an easy-to-install switch that monitors humidity levels and turns the fan on and off as needed.
          ~Better Homes and Gardens
            Kitchen+Bath Makeovers


 

CONTROLS

FS-300
Click to Rotate

 

$49.00

BUY

DewStop Adjustable

FS-300   Bathroom Condensation Control

Healthy Home Product™

  Blue LED Light, Adjustable DewStop Sensor, Adjustable Fan Timer On, Fan Off

Electrical Input: 120 volts @ 60Hz
Maximum Fan Load: 1/8th hp or 3 amps

Best for use in: bathrooms, laundry rooms, sun rooms, spa rooms
May be used to comply with:
ASHRAE 62.2, Energy Star, LEED, Title 24, CalGreen

USA and international patents pending

Features & Benefits

CONDENSATION SENSORS (adjustable)

- Turns ON the fan when condensation is present and OFF when dry

- Adjust sensors to solve moisture problem

- Helps fight mold
 

QUE™ TECHNOLOGY

- Ultra moisture-sensing adaptive technology (patent pending)
 

COUNTDOWN TIMER (adjustable)

- You choose how long your fan will run

- Great for tenant and family use
 

MANUAL ON/OFF CONTROL

- Manual fan control for immediate ventilation
 

LED FAN INDICATOR LIGHT

- Lets you know the fan is ON
 

CONCEALED ADJUSTMENT SETTINGS

- Tamper-proof settings cover
 

Color Options

- White

- Light Almond

 

FS-100-W1
Click to Rotate

 

$37.00

BUY

DewStop (original)

FS-100   Bath Fan Control

Healthy Home Product™

  Blue LED Light, DewStop Sensor, Fan Timer On, Fan Off, Compatible with multiple face plate styles

Electrical Input: 120 volts @ 60Hz
Maximum Fan Load: 1/8th hp or 3 amps

Best for use in: bathrooms, laundry rooms, sun rooms, spa rooms
May be used to comply with:
ASHRAE 62.2, Energy Star, LEED, Title 24, CalGreen

USA and international patents pending

FEATURES

- Works with ANY ventilation fan

- Turns fan on when condensation is present and off when dry

- Manual on/off fan control

- LED light indicates when the fan is on

- Built-in 30-minute fan timer
 

BENEFITS

- Makes your fan a smart fan

- DewStop sensors are always watching for harmful moisture, ready to control your fan when your family forgets to

- For when you simply need the fan on

- Lets you see when your quiet fan is on

- Fan timer ensures that your fan won't be left on all day
 

COLOR OPTIONS

- White

- Light Almond

DewStop pamphlet

View the full pamphlet

IMAGE || PDF

Control your bathroom fan when your family forgets to

INTRODUCING DEWSTOP FAN CONTROL
Picture never having to worry about the bath fan being left on all day, or worse, not being turned on at all. Without proper ventilation, humidity and condensation from showers will cause mold growth. Mold can cause a variety of respiratory ailments, as well as damage your bathroom. DewStop's sensors detect these problems before they start, and run your fan for you. Imagine the peace of mind - knowing your bathroom will always be given the right amount of ventilation, every time.

 
Let DewStop Take Control

Family Friendly, Energy Saver, Mold Control, Clear Away Moisture, Fight Bacteria

 

FS-325

$59.00

BUY

DewStop Adjustable

FS-325   Bathroom Condensation Control with Light Control

Healthy Home Product™

  Blue LED Light, Adjustable DewStop Sensor, Adjustable Fan Timer On, Fan Off, Light On/Off

Electrical Input: 120 volts @ 60Hz
Maximum Fan Load: 1/8th hp or 3 amps
Maximum Light Load: 150W LED/CFL, 400W fluorescent, or 600W incandescent

Best for use in: bathrooms, laundry rooms, sun rooms, spa rooms
May be used to comply with:
ASHRAE 62.2, Energy Star, LEED, Title 24, CalGreen

USA and international patents pending

Features & Benefits

CONDENSATION SENSORS (adjustable)

- Turns ON the fan when condensation is present and OFF when dry

- Adjust sensors to solve moisture problem

- Helps fight mold
 

QUE™ TECHNOLOGY

- Ultra moisture-sensing adaptive technology (patent pending)
 

COUNTDOWN TIMER (adjustable)

- You choose how long your fan will run

- Great for tenant and family use
 

MANUAL ON/OFF CONTROL

- Manual light control allows you to control bathroom lighting

- Manual fan control for immediate ventilation
 

LED FAN INDICATOR LIGHT

- Lets you know the fan is ON
 

CONCEALED ADJUSTMENT SETTINGS

- Tamper-proof settings cover
 

Color Options

- White

- Light Almond

 

 

FS-850

$39.00

BUY

Adjustable Fan Timer

FS-850   Bath Fan Timer Control

  Blue LED Light, Adjustable Fan Timer On/Fan Off

Electrical Input: 120 volts @ 60Hz
Maximum Fan Load: 1/8th hp or 3 amps

Best for use in: bathrooms, laundry rooms, sun rooms, spa rooms
May be used to comply with:
ASHRAE 62.2, Energy Star, LEED, Title 24, CalGreen

Features & Benefits

COUNTDOWN TIMER (adjustable)

- You choose how long your fan will run

- Great for tenant and family use
 

MINUTES PER HOUR TIMER (adjustable)

- Set the timer to turn the fan ON every hour

- Expels stale air, improving air quality
 

MANUAL ON/OFF CONTROL

- Manual fan control for immediate ventilation
 

LED FAN INDICATOR LIGHT

- Lets you know the fan is ON
 

MEETS ASHRAE 62.2

- Allows any Energy Star fan to be compliant with 62.2

- Credits time back for manual use
 

CONCEALED ADJUSTMENT SETTINGS

- Tamper-proof settings cover
 

Color Options

- White

- Light Almond

 

FS-875

$44.00

BUY

Adjustable Fan Timer

FS-875   Bath Fan Timer Control with Light Control

  Blue LED Light, Adjustable Fan Timer On/Fan Off, Light On/Off

Electrical Input: 120 volts @ 60Hz
Maximum Fan Load: 1/8th hp or 3 amps
Maximum Light Load: 150W LED/CFL, 400W fluorescent, or 600W incandescent

Best for use in: bathrooms, laundry rooms, sun rooms, spa rooms
May be used to comply with:
ASHRAE 62.2, Energy Star, LEED, Title 24, CalGreen

Features & Benefits

COUNTDOWN TIMER (adjustable)

- You choose how long your fan will run

- Great for tenant and family use
 

MINUTES PER HOUR TIMER (adjustable)

- Set the timer to turn the fan ON every hour

- Expels stale air, improving air quality
 

MANUAL ON/OFF CONTROL

- Manual light control allows you to control bathroom lighting

- Manual fan control for immediate ventilation
 

LED FAN INDICATOR LIGHT

- Lets you know the fan is ON
 

MEETS ASHRAE 62.2

- Allows any Energy Star fan to be compliant with 62.2

- Credits time back for manual use
 

CONCEALED ADJUSTMENT SETTINGS

- Tamper-proof settings cover
 

Color Options

- White

- Light Almond

 

 

SWITCHES

FS-100-W1

$12.95

BUY

Combination Fan Switch

FSR-500   2-Function

  Device #1 On/Off, Device #2 On/Off

Electrical Input: 120 volts @ 60Hz
Maximum Total Load: 15 amps

Best for use with: a fan/light combination, a fan/heater combination, or a 2-speed fan

Features & Benefits

VERSATILE

- Compatible with ALL makers of: Fans, Lights, and Heaters
 

SPACE SAVING

- Our 2-rocker switch allows you to control two devices while only taking up one switch location. Maximize your space, create a beautiful look, and control more devices with this simple to install switch.
 

Color Options

- White

- Light Almond

 

FS-100-W1

$13.95

BUY

Combination Fan Switch

FSR-600   3-Function

  Device #1 On/Off, Device #2 On/Off, Device #3 On/Off

Electrical Input: 120 volts @ 60Hz
Maximum Total Load: 15 amps

Best for use with: a fan/light/light combination, a fan/light/heater combination, or a 2-speed fan with light

Features & Benefits

VERSATILE

- Compatible with ALL makers of: Fans, Lights, and Heaters
 

SPACE SAVING

- Our 3-rocker switch allows you to control three devices while only taking up one switch's space. Maximize your space, create a beautiful look, and control more devices with this simple to install switch.
 

Color Options

- White

- Light Almond