Please note:
1. We recommend the product be placed at a minimum distance of 8.2 feet (2.5 meters) from all sources of interference, such as televisions or computer monitors, or switching power adapters.
2. Radio reception is weaker in rooms with concrete walls (e.g., cellars) and in offices. In such extreme circumstances, place the WF-55C PRO console close to the window.
3. We recommend the low-temperature resistant batteries in winter as the performance of normal AA batteries will be weakened and affect the sensor signal strength when the temperature is below -10℃.
4. For optimal performance, keep the device plugged in to minimize battery changes. As an extra measure, for power outage protection and to secure settings and data history, we advise installing batteries.

Specification:
Humidity Range: 20%RH ~ 95%RH
Temperature Range:
Display Console: -9.9°C (14.2°F) ~ 50°C (122°F)
Remote Sensor: -40°C (-40°F) ~ 70°C (158°F)
Wireless Remote Sensor
RF Transmitting Frequency: 433.92 MHz
Transmission Range: Up to 330 ft/100 meter
Barometric Pressure Ranges: 600～1100 mB/hPa (17.72～32.50 inHg)
Compatible Sensor: R3 Wireless Remote Sensor
Power Supply:
Display Console: Battery: 2 x AAA (not included); Adapter: DC 5V, 2000mA (Type-C Interface)
Remote Sensor: Battery: 2 x AA (not included)

What’s in the box?
WF-55C PRO Console x 1
R3 Remote Sensor x 1
Type-C Cable with Adapter x 1
User Manual x 1