SimpliSafe Motion Sensor — Indoor 35 ft Range, Pet-immune

The SimpliSafe Motion Sensor detects human movement across a 35 ft range with a 90° field of view while filtering out pets under about 50 lbs.

Designed for the SimpliSafe Gen 3 Home Security System, this compact indoor motion sensor adds a reliable layer of protection to living rooms, hallways, and entryways. It uses motion detection technology tuned to recognize people and reduce false alarms from small animals, then sends near-instant notifications to your phone. Installation is simple — peel-and-stick or mount with included hardware — and it integrates with 24/7 professional monitoring plans if you choose that service.

How much area does the SimpliSafe Motion Sensor protect?

The sensor covers broad spaces from a single mounting point, especially when placed in a room corner. It senses motion up to approximately 35 feet and spans a 90° horizontal detection arc, making it suitable for most average and large rooms.

• Detection distance: up to 35 ft (approx.)
• Field of view: 90° horizontal coverage
• Best placement: corner mount for widest room coverage
• One sensor can monitor an entire living room or entryway

Will this motion sensor trigger from my pet?

This model is calibrated to ignore pets under roughly 50 pounds, significantly lowering the chance of accidental alarms caused by typical household animals. While it reduces false activations, very large or jumping pets may still trigger detection depending on placement and grooming.

• Pet immunity threshold: about 50 lbs
• Mounting tip: higher placement reduces pet-triggered events
• Avoid pointing directly at pet beds or feeding areas
• Adjust zone by choosing corners where pet traffic is minimal

How do I install and connect the motion sensor to my system?

Installation is quick and does not require tools unless you prefer a permanent mount. Use the included peel-and-stick adhesive for instant placement or the hardware for a more secure fit, then follow the SimpliSafe app prompts to pair the device with your Gen 3 base station.

• Mounting options: peel-and-stick or included screw hardware
• Pairing: guided setup in the SimpliSafe App for Gen 3 systems
• Placement advice: install in a corner 7–8 feet high for best range
• Maintenance: occasional battery check and app-based status alerts

What alerts and monitoring options are available?

The sensor sends instant local alerts to the SimpliSafe App when motion is detected, letting you verify events from anywhere. If you subscribe to SimpliSafe’s professional monitoring, trained agents can dispatch emergency services on your behalf when an alarm is confirmed.

• App notifications: real-time push alerts to your phone
• Optional 24/7 professional monitoring for emergency response
• Integrates with other SimpliSafe devices and system modes
• Event history: review motion activity in the app log

Who is this for? The SimpliSafe Motion Sensor is well suited for homeowners and renters who want straightforward, reliable indoor motion detection that minimizes false alarms from typical pets. It’s ideal for covering living rooms, hallways, and primary entrances without complicated wiring, and for anyone who wants mobile alerts or optional professional monitoring tied into their Gen 3 SimpliSafe system.