These portable pH meters have features usually found only in bench top instruments. They include slope adjust, standardize, recorder output, and 1/2 inch LCD display. Dual range (0 to 14 pH and +/- 0 to 1999 mV). 42240-00 has manual temperature compensation, 42240-10 has automatic temperature compensation. Includes foam-lined carrying case, gel filled electrode, battery and buffers of 4.0, 7.0 and 10.0 pH. Overall 3.5W x 5.75D x 1.5 inches high.
