PINPOINT PH Calibration Fluid
For all PH Meters
High Precision Calibration Fluid
Accuracy -plus or minus 0.002 at 77 degrees
Single use packet, tear open top and immerse PH pen into fluid to calibrate.
pH 7.000 is used for all PH Pens.
pH4.000 and pH10.000 available as well please call for in stock status

Koi Medic Salinity Meter
Trans Instruments has specially designed the KoiMedic tester to measure the delicate salt concentration in the pond. The testers are accurate and easy to use. All you need to do is turn it on and dip...(click on product image for more details)