The Bluelab Combo Meter offers customers a conductivity, pH, and
temperature meter all in one. This battery powered portable meter can
be used anytime and anywhere and features auto-off function to extend
battery life and simple push button pH calibration. Meter will display
temperature as °C or °F, pH 0-14, and conductivity as Electrical
Conductivity, Conductivity Factor or parts per million. Includes
probes, pH calibration solution, two AAA batteries and a five year
manufacturer’s guarantee.