ORIA Indoor Thermometer Digital Hygrometer Wireless Temperature and Humidity Gauge Monitor with 3 Sensor for Home Office Bedroom Features: Connect Note: Pls install the station battery first, then install the sensor battery. If a specific channel is lost, press the CHANNEL/+ button until the channel indication single flashing.Verify the humidity sensors match closely with the console and the sensors are in the same location (about 1-3 meters apart). The sensors should agree within 10% (the accuracy is +/- 5%). Allow about 30 minutes for all sensors to stabilize. Humidity Expression: Large LCD display with simple and clear readings. Indoor temperature (0 - 60); Outdoor temperature (-40 - 60); Humidity (10% - 99%). The temperature and humidity accuracy: +/- 1, +/- 5%; Wet: humidity more than 65%; COM: 45%-65%; DRY: humidity less than 45%. The express changes following the changing of the humidity. Backlight & Battery Life: You can press the "Light" button to turn on the backlight. It will automatically turn off after 10 seconds if without any operation. This help you to read the data clearly even at night. Please re-install the battery if the sensor cannot connected. The Station and transmitter signal distance: 100M/328ft. The station need 3 AAA Battery; Sensor need 2 AAA Battery.(not included). Max & Min Record: Max & Min functions on indoor and outdoor on both temperature and humidity. The data update every 60 seconds. Press the /F button to switch between celsius and fahrenheit. Ideal for your house, office, factory, etc. Battery Replacement: 1. Host: Please snap off the back cover, put the battery in, and close the back cover; 2. Sensor : Please push the back cover in the direction of the arrow, then put the battery in, and close the back cover. When the sensor shows the low battery icon, that means you need to change the new battery. Heartwarming Reminder: The transmitter is not waterproof. It is best not to place it in the open air. It can be placed on the outdoor eaves or in a sheltered place on the transmitter. Do not expose the transmitter to rain. Specifications: Comfort Level Indicator: -Dry (RH65%) Frequency: 433 MHz Update Rate: 30s Transmission Range: 100M/328ft (open area) Indoor -Temperature Range: -9.950(14.2122) -Humidity Range: 20%-95% Outdoor -Temperature Range: -4060(-40140) -Outdoor Humidity Range: 10%-99% Accuracy: 1C; 5% (only guaranteed between 20 to 90%) Resolution: 0.1C; 1 % Display Console: -3 x AAA 1.5V Alkaline batteries (not included); -Dimension: 9.5cm*7.8cm*2cm(L * W * H) Remote Sensor: -2 x AAA 1.5V Alkaline or Lithium batteries (not included) -Dimension: 7.5cm*6cm*2cm(L * W * H) -Waterproof: IPX4 Package Included: 1*Indoor Outdoor Thermometer Hygrometer 3*Thermo-Hygrometer Sensors 1*User Manual _x000D_