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AWE Instruments

pHTestr 10 Waterproof pH Tester

pHTestr10 Waterproof pH tester 

The pHTestr 10 is a portable waterproof pH Tester designed as a rugged low cost portable pH instrument that is suitable in even the harshest environments. Mistakes do happen so if you do drop it in your processing tank it will float to the surface. It even features a lug for you to attach a cord to, allowing you to retrieve the pH stick if it floats away from you.

The pHTestr 10 offers a full measuring range of 0 -14.00 pH.

The waterproof pH tester is both compact and economical of simple design and construction featuring a replaceable electrode so the body may be reused many times. Powered by 1.5 volt button batteries with auto timed shutdown and auto buffer recognition the pH stick is simple to own and use.
The pH stick instrument has many uses offering increased accuracy and repeatability over pH indicator solutions and papers. Uses include educational field studies, laboratories, environmental monitoring right through to simply testing the pH of virtually any water based solution.

Specifications pHTestr10 Stick pH Tester

Model No WD35634-00

Range 0 - 14.0 pH

Resolution 0.1 pH

Accuracy ± 0.2 pH

Calibration 3 points

Temperature compensation Automatic

Electrode type Glass pH sensor

Operating temperature 0 - 50ºC

Power supply 3 x 1.5v button type batteries

Battery life approx 250 hours

Dimensions 6.5” x 1.5” (165 mm x 38 mm)

Weight 125 grms



pHTestr 10 Data Sheet




pHTestr 10 Calibration


The waterproof pH Tester model:- pHTestr10 has a simple push button 3 point calibration mode. This reduces the time needed to buffer the unit to allow for the quick measurement of pH values. By using the a 3 point calibration the pHTestr 10 offers precision readings across the logarithmic pH scale while also being housed in an IP67 Rated Waterproof enclosure. 

The calibration process is simple using pHBS4, pHBS7 and pHBS10 from our pH buffer solution range to give a representative sample across the pH scale. 

Having rinsed the instrument in water (not de-ionised water) simply insert the pHTestr10 into the first buffer solution, turn the unit on and hold the calibration button down. The instrument will identify which buffer solution, adjust it's internal value accordingly, also give you the previous reading for when the unit was last calibrated. Rinse the electrode again in water and repeat the process for the remaining buffer solutions. 

pHTestr 10 Accessories

Accessories for the pHTestr10 and items also purchased by AWE Direct customers.


Model:- pHWPSEN

Replacement Electrode For pHTesr10

The pHWPSEN is the Replacement electrode for the pHTestr10. The pHWPSEN comprises of a double junction pH Electrode with built in Automatic Temperature Compensation. 

To replace the electrode in the pHTestr10, the old electrode simply twists off the unit and the replacement pH electrode slots into place and the holding collar is tightened to secure it.