COTINSE Wireless Motion Sensor LED Light - Door Alarm

COTINSE Wireless Motion Sensor LED Light is a plug-and-play motion detector alarm kit that alerts you with chimes, a flashing LED, and up to 110 dB sound when movement is detected within its sensor range.

This expandable wireless security set pairs battery-powered motion transmitters with plug-in receivers to monitor doors, halls, shop aisles, or classrooms. It supports long-distance wireless signaling up to 500 feet line-of-sight, a motion detection angle around 110 degrees, and selectable ringtones and volume levels so you can tailor alerts to the environment.

How does the system signal motion and how loud is the alert?

When a transmitter senses motion within roughly 13–16.5 feet, it sends a radio signal to any paired receivers. The receiver both flashes its LED indicator and plays a chosen ringtone up to 110 dB, giving an obvious audible and visual cue.

• 58 ringtone options to choose a sound that fits your space
• 5 adjustable volume levels, including a high 110 dB setting for noisy locations
• LED flash on the receiver to add a visual alert
• Fast trigger response for immediate notification

Can I expand the system and mix transmitters and receivers?

Yes — the kit is designed to grow with your needs. Each receiver can learn up to 20 transmitters, and you can add as many receivers as you want to cover multiple rooms or outlets.

• Receivers accept signals from up to 20 motion sensors each
• Mix-and-match transmitters and receivers freely for flexible coverage
• Ideal for multi-entry properties, retail aisles, or larger classrooms
• Simple pairing process for additional units

What are the installation and power requirements?

Installation is tool-free and quick: mount the motion sensor where you need coverage and plug the receiver into any standard outlet. The sensor runs on two AAA batteries (included), while receivers draw power from the outlet, avoiding frequent battery changes for the main alert unit.

• Sensor mounts to wall or doorframe with included hardware or adhesive
• Sensor operates on two AAA batteries (included) for wireless placement
• Receiver plugs into standard AC outlet — no batteries required
• Sensor detects motion across a 110° field for doorway and corridor use

How do I set or change the ringtone and volume?

Changing tones is done on the receiver without a smartphone. Use the volume and down buttons to scroll tones, hold the volume button to enter pairing mode, then trigger the motion sensor to bind the chosen sound to that transmitter.

• Press volume or down buttons to browse 58 ringtones
• Hold the volume button for 5 seconds to enter ringtone set mode
• Wave your hand in front of the sensor to save the new ringtone
• Adjust volume across 5 levels for different environments

Who is this for? The COTINSE Wireless Motion Sensor LED Light is aimed at homeowners, small-business owners, store managers, and schools that need an affordable, easy-to-install alert system. It’s suitable where wired systems are impractical or when a low-cost, scalable monitor is preferred — for front doors, back rooms, classroom doors, retail aisles, and office entryways where instant audible and visual alerts help manage traffic and increase situational awareness.