pH Test Pen

The ECO Pal pH Meter measures pH, one of the more important control parameters in Koi ponds. Having a rugged, reliable and portable tester is indispensable to Koi hobbyists on the move.

Auto Shut Off
The energy-saving feature shuts off the tester when it is idle. To ensure accurate reading at all times, the unit displays a low battery sign to alert user to change the batteries before it degrades the accuracy of the reading and data.

Water Resistant
The ECO Pal pH Meter is made to be splash proof, allowing easy washing of the unit. Even if the tester is accidentally dropped into the water, it will remain afloat so as to enable user to retrieve it immediately without damaging the sensitive electronics in the unit.

Drop Shock Six Feet
Most pH testers must be handled carefully due to the fragile glass sensor. With an accidental drop of the unit, the tester is beyond repair. But the ECO Pal pH Meter was made to withstand a drop up to six feet. Thanks to the reinforcement of the sensor area and a specially designed straight glass bulb that reduces stress and impact during a fall.


Operating Range

0.0 pH to 14.0 pH


0.01 pH


+ 0.02 pH

Operating Temperature

0 to 50 degrees C

Auto Shut-off

Approx. 15 minutes


4 x 1.5V button Cell (A76 or equivalent)

Battery Life

Approximately 300 hours (continuous use)


Approximately 70gm


170 (L) x 32mm (W) x 15mm (H)

Item #
Trans Instruments pH Meter
$ 105.79
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