Unboxing
I’m working with 2 used new BLE-YC01 sensors, obtained recently (09/2022) from chinese resellers (Aliexpress, I believe).
The product is packaged as follows:
Searching for “Yinmik” brings us to Yinmik.com, a manufacturer of water testing instruments, but the BLE-YC01 product is listed nowhere on their website as of 23/09/2022.
Opening the box reveals the product held in a plastic blister and some accessories:
pH calibration buffers in powder form
The user manual
A wrench, to open the top cap
A glance at the first page of the user manual gives us some specifications of the sensors and some product features: