Bought this electrode as a test setup for a PH controller. Received it promptly. However one fo the electrodes had leakage of the electrolyte. After notifying Universbuy he *directly* arranged for a replacement to be sent, which was received promptly as wel... Highly recommended !
First, pretty fast shipping from China. I didn't expect it for at least another week. Price was fair and all the parts arrived. The chip had bent pins from the mail handlers, but they straightened out easily. The chip holder pins were also bent and one of the pins was missing, but I had a spare and it isn't really necessary.
The parts are all low tolerance and arrive lose in a bag. Only took a minute to figure out where they went since the great little PCB was labeled. The kit went right together and was simple to build. The PCB was outstanding, well laid out and clearly marked.
Thanks for a quality product.