Find the serial number on an Alarm.com Smart Thermostat
Oct 03, 2025
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How to Find the Serial Number on an Alarm.com Smart Thermostat (ADC-T3000 / ADC-T2000)
The serial number of an Alarm.com Smart Thermostat can be found either on the box it came packaged in or directly on the thermostat device. This number is required for setup, troubleshooting, or warranty (RMA) requests.
Finding the Serial Number on the ADC-T3000
On the Box:
- The serial number is a 16-digit number located below the barcode on the box sticker.
On the Thermostat:
- Verify that the thermostat model is an ADC-T3000.
- Remove the back cover.
- The serial number is the 16-digit number located above the Z-Wave Plus sticker.
Finding the Serial Number on the ADC-T2000
Important: If you are requesting a return (RMA) for an ADC-T2000, select the Parts Without Unique Identifiers category since serial numbers are not used for these RMAs.
On the Box:
- The serial number is an 11-digit number located at the bottom of the box sticker.
On the Thermostat:
- Verify that the thermostat model is an ADC-T2000.
- Remove the back cover.
- The serial number is the 11-digit number located below the Z-Wave Plus sticker.
Need Help?
If you cannot locate the serial number or need assistance with a return, please contact True Protection Support for further help.
