PH-200 Waterproof pH/ Temp Meter - HM Digital Measuring Tools it also data logs these

it also data logs these important parameters into your computer for you

Tray of 77 large

Unlike most other reflectors

Tank volume - 45 l

PH-200 Waterproof pH/ Temp Meter - HM Digital Measuring Tools it also data logs thesedeal for all pH testing, water purification applications, wastewater regulation, aquaculture, hydroponics, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment, wine, coffee, agriculture and more. HM Digital HMDPH200 meters come factory calibrated and are ready to use. They are designed to stay consistent. However, after prolonged usage, it may help to recalibrate your meter using a