Digital temperature meter, with wireless sensors, is suitable for outdoor or indoor use, like living room, bedroom, baby room, office, wine cellar, greenhouse, basement, etc.--monitoring three temperature(one by temperature meter, two by sensors), grasping environment changes in real time.Features:THREE TEMPERATURE MONITOR: The temperature meter, made of solid durable ABS housing, comes with 2 sensors(signal distance: 100m/328ft), can simultaneously monitor temperature of 3 places.HIGH ACCURACY: Digital temperature monitor, built-in smart sensor, features wide temp measure range, precise monitoring, 10s refresh speed, providing latest changes of environment.LARGE LCD DISPLAY: Large screen shows real temperature data values in a big font, easy to read, battery status, temperature trend icon, maximum/minimum temp.MAX/MIN RECORD ALARM: It has max min temp value memory, icon sound alarm at temperature over setup value, or F switchable with press on button.EASY INSTALLMENT: Sensor equips with back clip for easy installing; temperature meter, with hanging hole, magnetic design bracket, allows hassle-free wall mount, attaching to refrigerator, placing on table.Specifications:Material: plastic + electronic componentsColor: whiteType: temperature meter 1 sensor / temperature meter 2 sensor (optional)Indoor temperature range: 0~50 (32~122)Outdoor temperature range: -40~60 (-40~140)Accuracy: 1.0Indoor temperature refresh time: 10sOutdoor temperature refresh time: 60sSensor power supply: 2 * AA battery (not included)Temperature meter power supply: 2 * AAA battery (not included)Coverage range: up to 100 metersSensor dimension: 38*33*106mm / 1.49*1.29*4.17inTemperature meter dimension: 95*20*85mm / 3.74*0.78*3.34inNet weight:178g / 6.27ozPackage size: 95*63*115mm / 3.74*2.48*4.52inPackage weight:220g / 7.76ozNote:Temperature monitor set only, other accessories in the pictures are not included.Due to manual measurement, there may be deviation, please in kind prevail.Due to lighting or other reasons, the picture and material object may slightly differ.Packing List:1 * Temperature Gauge2 * Sensor1 * User Manual