System requirements for the app can be found at the bottom of the HOBOconnect software page

This data logger features a visible LED light indicator that warns users when preset parameters have been exceeded

using internal sensors or mechanical dry contact closures

For accurate temperature measurement in sunlight

With an MX Gateway

HOBO MX2306-7 Utomhus Jordfukt Data Logger Sensor:Soil moisture System requirements for the appAffordable, fully integrated soil moisture loggers with wireless Bluetooth data offload. Well suited for researchers and growers who need accurate data to conserve water, improve yields, reduce harmful runoff and protect ecosystems. Available in two models: HOBO MX2306 Soil moisture HOBO MX2307 Soil Moisture Temperature Used with Onset's free HOBOconnect app, for mobile or computer