The CitraCharge® process:

One of the few maintenance steps you will need to take is to replace the spigot and rubber gasket that that dispense water from your unit

Portable & Convenient: Compact pen design fits in your pocket for on-the-go testing

This Milwaukee MW805 MAX pH/EC/TDS/Temp

pH/EC/TDS meters usually start performing poorly because of problems with the sediment on the conductivity probe's rings or build up on the glass pH bulb

Groline Nutrient Tester - HI98330 lab pH probe The CitraCharge® process:The HI98330 nutrient tester is designed to measure the conductivity of the nutrient solutions used in agriculture and hydroponic applications. Features at a glance: IP67 waterproof and floating design No user calibration needed Auto on when placed in nutrient water Auto off 30 seconds after stable measurement Accurately Measure Electrical Conductivity Ideal for hydroponics and agriculture applications, the HI98330 GroLine Nutrient Tester accurately