I contacted Susan Taisuo via Alibaba. They refuse to send free samples. Here are the good points and bad points of ordering
1- Language barrier is there but seemed to mostly get past that
2- They only accept SWIFT wire transfers in payment – that means there is 35 US dollar charge on top of any order to pay for the transfer. This is a real problem. Technical things rarely go exactly right and with the language barrier its a real problem. They suggest Western Union but that's almost as expensive. Also Western Union is not popular in the US. Almost everyone has PayPal in the USA. Suggested solution to this is GET A PAYPAL ACCOUNT!
3- Two temperature controller parts did arrive quickly.
4- I ordered a temperature controller to control a refractory oven. They made a mistake in what they told me and placed my most important out, the SSR ( solid state relay ) driver in OUTPUT #2 location. Unfortunately this results in the output be suitable sign for controlling a refrigeration unit. When the PROCESS VALUE > SET VALUE the output is turned on.
When I contacted them with the problem they wanted me to pay shipping to get another set of samples with correct output sign. Of course what I would be paying = SHIPPING + WIRE TRANSFER fee. A bit annoying and does not indicate well for doing business with them.
I decided to do surgery on my and swap the output circuitry in the one they sent me. Annoying but I am leaving the country soon for a while and do not want to take it along unless I need to. Here are the results.
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