So these sensors are only motion based? Someone can literally smash out a window and climb through unless there is a glass break sensor within 20ft?

Rather than buy glass break sensors for all of my windows, I have window sensors on all the windows and a motion detection sensor in each room. I have rooms with four and five windows. It saves money and does the same job.

if I put it in my car a connect it then drive off and return within range, will it automatically reconnect to the home base?

You can disconnect and reconnect it by using the keypad.

are these compatible with nest security systems

This is a simple magnetic switch that communicates with the Simplisafe base station. Not 100% sure but I suspect it is proprietary to the Simplisafe system. You might want to contact Nest with this question.

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SimpliSafe Entry Sensor (Pack of 4) - Window and Door Protection - Compatible with The SimpliSafe Home Security System - Latest Gen

SimpliSafe Entry Sensor (Pack of 4) - Window and Door Protection - Compatible with The SimpliSafe Home Security System - Latest Gen

Product ID: 231444131

Details

Brand
SimpliSafe
Color
White
Compatible Devices
Desktop Laptop
Item dimensions L x W x H
0.12 x 2 x 2.7
Power Source
Battery

📏Compact 2.7-inch design

📶1000 ft wireless range

🔋Long-lasting pre-installed battery

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VT21958

Duties & taxes included

In stock

Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔐 Elevate your space with smart, silent security—because peace of mind is the ultimate luxury.

PLUG PROTECT SETUP - Peel-and-stick or screw-in installation means no hassle, no tools, just instant security.
DISCREET SMART ALERTS - Customize silent notifications for private access without triggering alarms—stay informed without the noise.
RELIABLE WIRELESS RANGE - Stay connected up to 1000 feet from your base station—perfect for modern smart homes and offices.
SEAMLESS SECURITY EXPANSION - Effortlessly add protection to doors, windows, and cabinets with a sleek, compact sensor.
BATTERY POWERED PEACE OF MIND - Pre-installed alkaline batteries ensure months of uninterrupted protection, so you never miss a beat.

The SimpliSafe Entry Sensor pack of 4 offers compact, wireless contact sensors designed for doors, windows, and cabinets. Compatible with the latest SimpliSafe Gen 3 system, these sensors provide instant chime alerts and customizable silent notifications. Featuring easy peel-and-stick or screw-in installation, a 1000-foot wireless range, and long-lasting pre-installed batteries, they deliver reliable, discreet home security tailored for the modern professional.

Specifications

ASIN	B08HR8HYPS
Alert Type	Motion
Assembly Instructions Description	No assembly required
Battery Cell Type	Alkaline
Best Sellers Rank	#28 in Home Security Systems
Brand	SimpliSafe
Built-In Media	4 Entry Sensor
Color	White
Compatible Devices	Desktop, Laptop, Smartphone, Tablet
Connectivity Technology	Wireless
Control Method	App
Customer Reviews	4.8 out of 5 stars 3,525 Reviews
Installation Method	Screw In,Self Adhesive
Item Dimensions	0.12 x 2 x 2.7 inches
Item Type Name	Sensor
Item Weight	1.1 ounces
Item dimensions L x W x H	0.12 x 2 x 2.7 inches
Manufacturer	SimpliSafe
Manufacturer Warranty Description	1 year manufacturer
Maximum Range	1000 Feet
Mfr Part Number	ENS304
Model Number	ENS304
Power Source	Battery Powered
Sensor Technology	Contact Sensor
Smart Home Compatibility	Smart Home Compatible
UPC	843261112064
Unit Count	4.0 Count
Voltage	6 Volts (DC)

Reviews

M**L

20.04.2026

D**H

12.01.2026

K**S

18.03.2026

H**Y

14.09.2025

A**L

5.03.2026

M**S

2.12.2025

C**B

18.12.2025

M**T

23.02.2026

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