Display Type:Digital; Usage:Household; Theory:Temperature Controller; Power Type:Button Battery; Display Size:1.9 Inches & Under; Brand Name:INKBIRD; Model Number:IBS-TH1 Plus Wireless Smart Sensor; Style:Standing and Wall Hanging; Max Measuring Temperature:49°C & Under; Color:white; Wireless Range:50 meters / 150ft; Temperature Range:-40~60 C; Humidity Range:0~99%RH; Package Content:1 X Data Logger 1 X Manual 1 x External Probe; Usage:Can be Universally Used for Room , Car , Guitar Cabinet, Wardrob; Feature 1: it is safe and healthy for you; Feature 2:Can be downloaded the data as a Form or Excel; Multiple Devices:One mobile phone can monitor more than one sensor and one sensor can b;