BBB Business Review ADC-S40-T Temperature - Humidity Sensor


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The ADC-S40-T is a temperature and humidity sensor designed for automation services. Using this sensor, you are able to monitor both the temperature and humidity in any room in your home or business remotely using the app or computer portal. The ADC-S40-T connects to your account using Z-wave technology and offers both authorized S2 and unauthorized S2 communication. When paired with an thermostat, such as the ADC-T40K-HD, the thermostat will use the S40-T to better normalize temperature in whatever rooms you place the S40-T. This can allow you to prioritize high-priority rooms, such as an office, or baby room, to ensure your temperature and humidity levels are within the tolerance you set. 

Connecting the ADC-S40-T to your account is simple and swift using's install wizards available in-app, and through the computer portal. Once connected to you will be able to view temp and humidity wherever the device is placed. After enrollment, you can tie the S40-T to your enrolled thermostat and create special automation rules to regulate your home's temperature. You are also able to set up notifications through to alert you in the event the S40-T detects high humidity or an incorrect temperature reading. One thing to keep in mind with Z-wave devices is signal strength though, so if your Z-wave controller is too far from the room you wish to place the S40-T, you will need to add a Z-wave signal-repeating device to ensure solid signal strength. 

Important: You MUST have an automation service to use this device, meaning you will need a Residential or Commercial plan that supports automation. 



Battery power: 5+ years
Dimensions: 1.2 x 1.6 x 0.47’’ (30.8 x 40.8 x 11.9 mm)
Communication: Z-Wave SmartStart Z-Wave S2 Authenticated/Unauthenticated
Operating Temperature Range: 14°F to 158°F (-10°C to 70°C)
Operating humidity: 80% (non-condensing)
Use: Indoor

ADC-S40-T Installation Guide

ADC-S40-T Data Sheet


Ask a Question
  • Will this work in a commercial freezer?

    Sure as long as you have an account and a system that supports zwave, such as Qolsys oe DSC Neo.