User: Electromatic, Location: Virginia
Asked on: Friday, March 14, 2025 at 3:21 pm EDT
Answered on: Friday, March 14, 2025 at 3:30 pm EDT
Question: Does anyone know if there is a wall switch occupancy/vacancy sensor that only triggers when the room is dark? This type of sensor is typical for outdoor fixtures--floods, etc. I have a short hallway with a switch in the middle and would like to have a motion/occupancy sensor, but I don't need or want the light coming on during daylight.TIA
Yes, you're looking for a combination of features that's less common than standard occupancy sensors, but definitely exists. Here's a breakdown of how to find what you need and things to consider
What you're looking for:
Wall Switch Occupancy/Vacancy Sensor
Replaces a standard light switch.
Motion/Occupancy Sensing
Turns the light on when motion is detected.
Darkness-Activated/Ambient Light Override
Only triggers when the room is sufficiently dark. This is often called a "photocell" or "light level sensor."
Finding the Right Product
Keywords are Key
When searching online, use these terms: "Wall switch occupancy sensor with photocell" "Wall switch motion sensor with ambient light sensor" "Daylight override occupancy sensor" "Darkness activated light switch"
Check Product Descriptions Carefully
Not all occupancy sensors have a daylight override. Look for these features explicitly mentioned in the product description: "Ambient light sensor" "Light level adjustment" "Photoelectric sensor" "Daylight Disable"
Look at the Specifications
Most good sensors will have a specification for the "light level threshold" (usually in Lux) at which the sensor will stop triggering.
Specific Product Examples (Illustrative - Check Current Availability/Specs)
Leviton ODS10-IDW Decora Wall Switch Occupancy Sensor
(Some versions offer daylight override. Check the exact model number.) Leviton is a well-known brand for electrical supplies.
WattStopper (Legrand) PW-312-W
Legrand (WattStopper) also makes commercial-grade occupancy sensors, some with photocell features.
Lutron Maestro Occupancy/Vacancy Sensor Switch
(Certain models may have this feature, but Lutron is more focused on dimming and smart home control, so check carefully).
Important Considerations
Vacancy vs. Occupancy Mode
Occupancy
Turns the light ON when it senses motion, and OFF after a period of no motion.
Vacancy
Requires someone to manually turn the light ON (but will turn it OFF automatically after no motion). Some sensors can switch between modes. Vacancy mode can save more energy.
Adjustability
The best sensors will allow you to adjust:
Time Delay
How long the light stays on after motion stops.
Sensitivity
How sensitive the motion sensor is.
Light Level Threshold
The darkness level required to trigger the sensor.
Wiring
Make sure the sensor is compatible with your wiring. Some require a neutral wire, while others don't. Check your existing switch to see if a neutral wire is present. If you're not comfortable with electrical work, hire a qualified electrician.
Coverage Area
Consider the range and field of view of the sensor. A short hallway might only need a small range.
Load Compatibility
Make sure the sensor can handle the wattage of your lights. LED lights typically have lower wattage than incandescent bulbs.
How to Find Local Options
Visit a local Electrical Supply Store
They can often recommend specific products and may have ones that aren't readily available online.
Consult an Electrician
An electrician can help you choose the right sensor and install it correctly.
Before You Buy
Read Reviews
See what other users say about the sensor's performance and reliability.*
Check the Return Policy: Make sure you can return the sensor if it doesn't meet your needs.Good luck finding the perfect occupancy sensor for your hallway! Flag for review