The App os nice, but since the beggining it’s missing grouping the measurements in one single report. I work in maintenance and we Never send a report with only one measurement to a client. Another big dissapointment is not being compatible to the other TESTO BT Smart Probes. I have a Smart Handle BT from Testo with a CO sensor and it’s not compatible with the App. I have to use the testo 440 and can’t make a digital report no the go.