ORIA Digital Hygrometer Indoor Outdoor Thermometer Wireless Temperature And Humidity Gauge Monitor With 3 Sensors

[3 Channels Monitor] - this weather station with built-in sensor and 3 wireless sensors, can be displayed for 4 different areas' temperature & humidity at the same time and no longer frequently switch channels to know the temperature and humidity [Multi-Functional Hygrometer Thermometer] - displays temperature (℃/℉ Switchable) and humidity, comfort indicators, arrow trends for temperature and humidity, Low Battery Icon. Also will show Max/Min record and auto clear off measuring data after 24 hours [Readable LCD Display] - this indoor outdoor thermometer with high definition LCD screen, large bold data and white backlight to ensure comfortable viewing at day or night. Note: press the display backlight to turn it off automatically after 5 seconds [Strong Wireless Signal] - Equipped with wireless transmitter, it features strong wireless signal penetration (433MHz frequency) and long transmission distance (30-100m/98-328ft in open air) [2 Mounting Options] - designed with wall hanger and retractable stand at the back, easy to mount it on wall effortlessly or just place it on the table. It can be used for office, hotel, greenhouses, incubation room, nutrition room, school, laboratory, baby room, hospitals etc. ▲If the transmitter has been replaced with a new battery, it is necessary to manually press and hold the CH button to receive the transmitter data again. ▲The sensor accuracy is ± 1 °C and ± 5 %;Allow up to one hour for the sensors to stabilize due to signal filtering. ▲If any of the sensor communication is lost, press and hold the CHANNEL button for 3 seconds to reacquire the signal or replace the batteries with fresh batteries. ▲Be sure to never mix old and new batteries, and never mix battery types such as alkaline and lithium together. ▲For cold weather environments (less than -20 °C), install lithium batteries. ▲This item is an electronic product. It will be recommended to place the sensor in a sheltered area to prevent direct exposure in the sun, such as an eaves, balcony, when it is using outdoor. ▲There is not Russian user manual.Please consider carefully. ●Comfort Level Indicator: -Dry (RH<45%) -Comfortable (RH 45%~65%) -Wet (RH >65%) ●Frequency: 433 MHz ●Update Rate: 30s ●Transmission Range: 100M/328ft (open area) ●Indoor -Temperature Range: -9.9℃～50℃(14.2℉～122℉) -Humidity Range: 20%-95% ●Outdoor -Temperature Range: -40℃～60℃(-40℉～140℉) -Outdoor Humidity Range: 10%-99% ●Accuracy: ± 1°C; ± 5% (only guaranteed between 20 to 90%) ●Resolution: 0.1°C; 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) -Battery Life: Min12 months(Intermittent reception and multiple sensors may reduce the battery life) -Waterproof: IPX4 1*Indoor Outdoor Thermometer Hygrometer 3*Thermo-Hygrometer Sensors 1*User Manual