Abstract: The disclosure relates to a system (100) for determination of humidity of concrete, the system (100) comprises a gauge (A1,A2,A3) configured to be embedded into the concrete, a first wireless communication module (10a, 10b, 10c) configured for wide area radio communication, and a processing circuitry (102a, 102b, 102c) operatively connected to the a gauge (A1,A2,A3) and the wireless communication module (10a, 10b, 10c), configured to cause the system (100) to obtain first measurement data by the gauge (A1,A2,A3), and transfer data wirelessly by the wireless communication module (10a, 10b, 10c) for making a value, defining the humidity of the concrete, available at a remote location. The disclosure further relates to a method for determination of humidity of concrete and a computer program product (500).