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Small white plastic sensor disc, 1.6 inches across

Cync CTHMCAPPEKB1 Control Sensor 1.6 in 1 Pack White

SKU CH-AGXR-0JMSP MPN CTHMCAPPEKB1

A wireless room sensor that measures temperature and humidity to balance comfort across multiple rooms when paired with a compatible smart thermostat

  • Item nameCync Temperature Sensor
  • Item descriptionAuto-Scheduling, Cync Temperature Sensor, Cync
  • Additional notesAuto-Scheduling
  • Overall size1 in × 1 in × 1 in
  • Surface finishWhite
  • Design styleSensor
  • Optimize room comfort by pairing with the Cync Smart Thermostat
  • Monitor temperature and humidity in real time through the Cync app
  • Control settings with Google Home or Alexa voice commands
  • Install in minutes using included adhesive tape or mounting screw
  • Compact 1.6 in diameter sensor weighs only .07 pounds

Smart Room Sensor for Cync Thermostat

The Cync Temperature Sensor pairs wirelessly with the Cync Smart Thermostat to monitor temperature and humidity in individual rooms. It helps reduce hot and cold spots by averaging readings across multiple zones. The sensor is designed for homeowners who want room-by-room comfort control using the Cync app. It requires the Cync Smart Thermostat, which is sold separately.

Check Thermostat Compatibility and Network

Before ordering, confirm you already own or plan to purchase the Cync Smart Thermostat, as the sensor cannot operate independently. Your home network must support a 2.4GHz Wi-Fi connection for the thermostat and sensor to communicate. No additional bridge or hub is required beyond the thermostat itself. Ensure you have a suitable wall location within wireless range of the thermostat.

Battery-Powered Monitoring Over Time

The sensor runs on battery power and maintains a low-power wireless link to the thermostat for continuous reporting. It delivers real-time temperature and humidity data to the Cync app throughout the day without needing a wired connection. The compact 1.6-inch diameter allows discreet placement that does not interfere with airflow. Voice control via Google Home or Amazon Alexa is available when the thermostat is linked to those platforms.

How it compares

Measured against everything we stock in Sensors, Buzzers & Control Modules, at today’s prices. Recalculated every night.

Price $20.99
Cheaper than about 66% of the 89 comparable items (median $29.99).

Specifications

Product
Brand nameCync
Model nameCTHMCAPPEKB1
Item nameCync Temperature Sensor
Design styleSensor
Product type1 Pack
Size & build
Surface finishWhite
Main materialPlastic
Product weight0.07 lb (0.03 kg)
Overall size1 in × 1 in × 1 in

Questions about this item

What comes in the box with the Cync CTHMCAPPEKB1 sensor and is the thermostat included?

The box contains the 1.6 in diameter sensor, a mounting screw and removable tape for wall installation; the Cync Smart Thermostat is required and sold separately.

Which version should I choose if I only need one sensor for a single room?

The 1 Pack option provides exactly one sensor, suitable for adding temperature and humidity monitoring to a single room alongside the thermostat.

What does the 2.4 GHz requirement mean for daily use of the sensor?

The sensor pairs wirelessly to the Cync Smart Thermostat over a 2.4 GHz Wi-Fi network, enabling app control, voice commands via Google Home or Alexa, and real-time temperature and humidity readings from anywhere.

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