This is the official Tongsheng site Suzhou Tongsheng Electric Appliances Co., Ltd. Motor Meter Controller , however I could not find any info or mention of the TSDZ2 there! Searching the site for "TSDZ2" returns nothing.
How many TSDZ2 motors were sold? Is it discontinued? If so, when?
How many TSDZ2 motors were sold? Is it discontinued? If so, when?