Specifications:Alarm Duration: 2 MinutesWireless Sensing Distance: 100 MetersIndoor Temperature Range: -10℃~60℃Outdoor Temperature Range: -50℃~70℃(-50 ℉ ~ 158℉)Humidity Range: 20%-99%Accurate Temperature: ±1℃Accurate Humidity: ±5%Power Supply: Host--3*AAA Battery, each Sensor--2*AA Battery(Not included)

Features:1. Easy to read LCD screen displays the current indoor outdoor temperature.When insufficient electricity,there are will be shown on the LCD screen.2. With a temperature trend indicator arrow and daily high and low information.3. Display stands upright for tabletop use or is wall-mountable.4. Includes 24 hours high and low records for temperature.5. The display console displays temperature,minimum and maximum temperature, which can be reset manually. Note:1. Do not install the reverse battery2. Do not put the receiver near metal3. Avoid transmitter directly in the rain4. High-quality batteries for the use of main unit and transmitter better5. The sensor search mode allows you to re-sync sensors without removing and re-inserting batteries.

Package Included:1 x Host3 x Sensor1 x User Manual