PH Module Ultra High Precision Detection Board


Using the fourth generation hp meter measurement technology, high precision (precision guarantees three decimal places such as 7.000 or 14.000)

-40-85 degrees guarantees very low bias current with low offset voltage and temperature drift. The input part of the circuit has been specially processed to meet the ph meter requirements, with a 3ppm ultra-low temperature drift reference and a 20bit high precision adc The board is equipped with a negative voltage charge pump. It only needs a single 5V power supply. The adc can be directly connected to the single-chip microcomputer. It can easily measure the slight change of ph. The precision exceeds 93% of the finished ph meter. It has excellent performance and is extremely cheap. Ten yuan price can get the performance of thousands of instruments

40 JD
In stock

Related Products

subscribe to our weekly newsletter