The Bluelab Combo Meter is a pH, conductivity and temperature meter all in one. The Bluelab pH Probe and the Bluelab Conductivity/Temperature Probe are simply placed into the solution and the selected reading is displayed on screen. As the Bluelab Combo Meter is portable and does not require a power supply to operate, it can be used anytime and anywhere. Calibration of the pH is simple with the push buttons on the meter and fresh calibration solutions. Conductivity and temperature do not need to be calibrated as this is locked in during manufacture.
The Bluelab pH Pen is the latest innovation for hand held meters. It provides a compact quick and handy way to take pH readings. This meter features 2 point calibration, automatic temperature compensation and a nonreplaceable double junction electrode.