How to Trick a Motion Sensor to Stay On?

If you have ever had a motion sensor light turn off on you when you were still in the room, then you know how frustrating it can be. Fortunately, there is a simple trick that you can use to keep the light on without having to continuously wave your arms around like a crazy person. All you need is a sheet of paper and a bit of tape.

Why Do We Want the Light to Stay On?

Why Do We Want the Light to Stay On?
Why Do We Want the Light to Stay On?

After a pre-set timer, motion sensor lights turn off if no motion is detected. If you set a 20-minute timer, your light will stay on for another 20 minutes after the space is empty to maintain illumination.

The motion sensor light can be adjusted from 30 seconds to 30 minutes for most uses. Some settings benefit from always-on lights.

Motion sensor lights are great for lighting your backyard or garden. We may wish to keep the light on all night whether motion is detected or not. When holding a nighttime garden party with friends, leave the light on as long as needed. If the motion detector is positioned to detect individuals from the pathway, not the present partying area, it may have trouble detecting motion, causing the light to repeatedly turn off. And that’s a party hassle.

Indoor motion sensor lights work similarly. Sometimes we want stairwells or study lights to stay on despite motion detection. When we’re reading in the study and the motion sensor is far away and unable to detect little actions like turning pages, the light may turn on and off constantly, ruining the mood.

How to Trick a Motion Sensor to Stay On?

Method 1:

Method 1
Method 1

Here’s what you do:

1. Cut a small piece of paper—it doesn’t have to be bigger than an index card.
2. Tape the piece of paper to the bottom of the motion sensor so that it covers the light sensor.
3. The paper will reflect the light back up into the sensor, tricking it into thinking there is still movement in the room even when there isn’t.
4. Voila! No more motion sensor headaches.

Method 2:

Now we know a motion sensor light should stay on. After “upgrading” to motion-activated lights, it’s annoying to lose the ability to leave a standard light on by leaving the switch on. How to keep motion sensor light on?

To keep a motion sensor light on, add a bypass switch to independently power the light, or use a motion sensor light switch with an ON/OFF option to keep inside lights ON.


How do I keep my motion sensor always on?

Wiring a motion detector with a double switch or three-position switch that is configured to bypass the sensor in one position allows you to keep a light that is activated by the sensor on at all times. Alternately, if you quickly turn the motion sensor off and then on again, the light will remain on with the vast majority of motion sensors.

How do you cheat a motion sensor?

According to Porter, the majority of motion detectors, even more recent ones, employ infrared to detect large changes in the temperature of the room that they are located in. According to him, moving around in a room would normally trigger these sensors; but, if you shield your body with something as simple as a piece of styrofoam, you may mislead them into thinking that you aren’t moving.

Can a motion sensor be bypassed?

The security system can be configured to temporarily ignore a particular sensor by “bypassing” that sensor. The system has the capability to monitor all other sensors in addition to those that are skipped. It can arm stay or arm away. In the event that a sensor is not functioning properly or if a user wishes to keep a window or door open while the system is being armed, this feature is utilized frequently.

Can you block a motion sensor?

Yes, it is possible to block a motion sensor light using a variety of different techniques. The most common type of motion detector, called a PIR sensor, can easily be blocked by simply covering the sensor with an object, such as a piece of paper or cardboard.

However, more sophisticated types of sensors, such as microwave and tomographic sensors, are not so easy to fool. For instance, these sensors work by detecting the presence of certain types of energy waves, such as microwaves or ultrasound.

Because they cannot be blocked using thin materials like paper or foil, these types of sensors are often considered more reliable than PIR sensors.

Ultimately, the ability to block motion sensor lights depends on the specific type of sensor being used and its sensitivity level. Nonetheless, with advances in technology and smart lighting systems, it’s likely that these blockers will soon become obsolete.

Can a rat set off a motion detector?

Much has been said about the importance of home security in recent years. As the threat of break-ins and theft continues to grow, homeowners are increasingly installing state-of-the-art surveillance systems both inside and outside their homes.

But it’s important to be aware that even these high-tech systems can be fooled by pesky critters like rodents and insects. For this reason, it’s essential that homeowners with pets take special care when choosing a home security system.

Specifically, they should look for sensors that are specifically designed to be “pet-friendly” – that is, they won’t be triggered by small animals or insects wandering through the home.

This not only helps to ensure greater protection against burglars, but it also helps to prevent the annoyance of false alarms due to unexpected triggers from pets or pests roaming about the house.

So whether you’re a homeowner with a pet or a renter living with curious critters, remember to choose your home security system wisely! You’ll rest easier knowing your home and its occupants are protected from harm at all times.


Try this simple trick the next time your motion sensor light starts giving you trouble and see for yourself how well it works. You might just be surprised at how well it works!

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