Bluelab pH Pen Blue Lab Hydroponic Aquarium Tester Calibration Meter Reader NEW. Measures pH and temperature. Selectable units for temperature. Double junction probe (not replaceable). Successful pH calibration indicator. 1 x AAA alkaline battery included. […]
Posts Tagged: aquarium
The Bluelab pH Pen is the latest innovation for hand held pH meters and is the ultimate handy solution for measuring pH. Hydroponic growing lets you give the best care possible to your plants. The […]