Practical thermometer and hygrometer that connects to the audio jack on a smartphone or tablet. Download the free app to measure and display the ambient temperature and humidity as values in a graph (The app is necessary for the product to function). Extension cord included. The sensor does not require batteries. For iOS and Android. Compatible with iPhone, 4, 4s, 5, 5s, 5c, 6(s), 6(s) plus new iPad, iPad mini, iPad Air. iOS 5–iOS 9 or later iOS/iPad/iPhone. Most Android devices, such as Samsung Galaxy S2, S3, S4, S5 Galaxy tablets, Note I, II, III, IV HTC, Nexus 4, 5, 7 Android 4.0 or later Android/phone models.
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