One step forward linking up a pH meter to this battery powered (1 week charge stored) WiFi utility station. Two or more steps back as I discover why the thermocouples I have are so cheap, and get caught out by my own stupidity crossing over wires twice. And in breaking news my slick soldering iron of the future has decided it wants to have a break in e-waste. MP4 recording     MP3 recording -- -- Your browser does not support the audio element.