Laird Sentrius™ RS1xx Cold Chain Temperature/Humidity Sensor - US915

Laird's Sentrius RS1xx Temperature & Humidity Sensor is an industrial grade sensor, ideal for cold-chain applications. Designed to be wall-mounted, or fitted inside fridges and freezers, the sensor monitors the environment and ensures compliance with HACCP food safety regulations. The unit can be installed in walk-in refrigerators and freezers or cold rooms, in shops, restaurants, and more.

Powerful features include storage of data on the sensor when the LoRaWAN network isn't available, to be retrieved later when connectivity is restored. This helps to maintain a complete record of readings, even during power or network outages

Configuration of the sensor is made easy with Laird's Sentrius Sensor app for Android and iOS. Connecting via Bluetooth it allows configuration of measurement/transmission intervals and LoRaWAN keys. It's also possible to view historic stored measurements, and perform firmware updates.

This is the 915MHz variant of the RS1xx for North America, we stock versions of this for different bands, and an external probe variant. Laird's range includes the Sentrius RG1xx LoRaWAN gateways, providing a full set of hardware for cold-chain monitoring.

• US915 LoRaWAN band
• Bluetooth 4.2 for configuration
• IP65 waterproof enclosure, with breathable sensor cover
• Powered by 2x AA Alkaline or Lithium batteries
• 256k of flash memory to store readings
• Robust mounting lugs
• Temperature accuracy of +/-0.4°C over 10° to +85°C
• Humidity accuracy of +/- 3% over 0 to 90% RH
• Configuration and firmware updates via BLE
• 116 x 91 x 34 mm

Sentrius sensors are fully compatible with any LoRaWAN network server, including the Things Network, Loriot, Senet, Chirpstack, and more.

There is a fully-worked Node Red example available from Laird's website, and we have open-sourced a payload decoder function for The Things Network as a starting point for integration.

Laird Connectivity has released Android and iOS apps to make it easy to configure Sentrius sensors, get the apps and try them out!