HM Digital pH Pen HydroTester

pH is critical when it comes to hydroponics.  Price can also be a factor in determining which pH Meter you can afford.  Don't compromise on price or accuracy!  Buy the HM digital pH meter for your plants and enjoy the results of increased nutrient uptake.

• Resolution: pH 0.1 pH, 0.00 - 14.0 pH.
• Accurate to ±0.1 pH.
• Hold button and auto shut-off.
• Automatic Calibration: Auto-ranging to 4, 7 or 10 pH.
• Very reliable and long lasting.
• Low battery indicator.
• Clear cap to notice moisture (or lack of) on probe.
• Glass encased reference electrode - helps retain moisture.
• Batteries included.