Panic over - the TH-03 is reading fine. I'm embarrassed to admit that I was reading the response as a signed char (and subsequently ignoring the minus sign as a display glitch) instead of an unsigned char. Serves me right for starting work before 8:30am - brain was obviously still asleep. Hope my hu...

Just started to experiment with our new TH-03 module. The high reference is being reported as 22044, when the manual indicates it should be within 500 counts of 43773. Low reference is reported as 19986, well within the 500 counts of the base 20082. Channels 1- 3 report between 21784 and 21852. This...