Senz PH Pen
Senz pH tester is a user friendly & simple to use pH meter.
A water resistant case and features an easy to read, 8mm LCD display
indicating pH over the range of 0 to 14pH with a resolution of 0.1pH and
an accuracy of ±0.2pH. The ambient operating temperature range of the
Senz pH meter is 0 to +50°C.