Here is the department dedicated to themaintenance of pH meters and EC meters. At Culture Indoor discount prices.
In this section, you will find the buffers (calibration solutions) of the brand The Growth Technology to re-parameterize every month, eC testers and pH meters. But also conservation and/or cleaningsolutions, only for pH testers.
There are also spare probes for EC or pH testers of the range Platinium Instruments.
The best prices on the web on eC and pH maintenance are at Culture Indoor.