Sentry-1 Sensor Is Easy To Use

Wireless Door/Window Sensor

The Sentry is a wireless magnetic sensor with a 3M double-sided adhesive mount on your window or door. The device has a tamper switch that prevents accidental removal, and the battery is replaceable. Sentry is ideal for wirelessly monitoring climate-sensitive environments where refrigeration doors could be left ajar, causing significant inventory loss. It offers 24 hours a day monitoring, real-time alerts, logs, and reports.

iMatrix Sentry Door & Window Sensor
Icon Door Open

Open / Closed State

Bluetooth 5.0

Bluetooth 5.0

Massive Mesh Technology

Mesh Technology

OTA Firmware Updates

OTA Firmware Updates

iMatrix Sentry-1 Sensor Dimentions Size


Device type Wireless Magnetic Switch
Measured states Open/Close/Tamper
Dimensions of body 2.16 x 1.0 x 0.51in (55 x 26.2 x 13mm)
Dimensions of magnet 1.5 x 0.49 x 0.43in (38.5 x 12.5 x 11mm)
Weight 0.92 oz (26.6 grams)
Waterproof rating IP66 (waterproof , dust proof)
Broadcasting range 328 feet (100 meters)
Battery CR2032 Coin Cell 230mAh
Battery life 13 months (by default)
  • Based on BLE technology
  • Stores up to 6 months of data
  • Upgradable to Massive Mesh

Enhance Your Monitoring

We recommend the iMatrix Micro Gateway to automatically scan, connect and send your NEO sensor data to the Cloud for word-wide access ( sold separately).

iMatrix sensors are upgradable to our proprietary mesh solution supporting massive networks. For massive networks we recommend the Series-1 Gateway (sold separately).

Micro Gateway USB Dongle – 802.11 a/b/g/n, Bluetooth 5.2

Micro Gateway Is Easy To Use {{ vc_btn: title=Check+Micro+Gateway+Setup+Guide&style=flat&color=primary&align=center& }} Micro Gateway USB Dongle  The Wireless iMatrix IoT Wi-Fi Gateway automatically scans and connects iMatrix wireless sensors and sends the data to the Cloud. The Micro

Series-1 WiFi Mesh Gateway

Series-1 WiFi Mesh Gateway Model: Series-1 The iMatrix Series-1 Gateway is an 802.11 b/g/n Gateway  with an integrated 2.4 GHz wireless radio programmed with the iMatrix Proprietary Mesh that supports massive sensor networks. The Series-1

Use Sentry-1 Sensor to Monitor:

Use Case iMatrix Sensors for Cold Chain Food

Cold Chain for Food

Use Case iMatrix Neo Sensors for Vaccine Storage

Pharmaceutical Products

Use Case iMatrix Sensors for Transporting Blood Sample and Medical Samples

Medical Samples

iMatrix Cloud & App

  • Manage multiple sensors via one interface
  • Set warning levels and receive alerts directly to smartphone or option for Wi-Fi gateway (sold separately).
  • Observe configurable graphs and updates of all your sensors
  • Organize hundreds of sensors with mulitple groups & locations
  • Set unique name and photo for each sensor
  • Get reporting and log files for record keeping and HACCP compliance.
iMatrix available on Google Play
iMatrix available on the App Store
iMatrix available as web app
iMatrix Sentry-1 works with iMatrix Cloud mobile app and web app