Midwest Hydroganics

Ideal for Student, Hydroponics, and Hobbyist use!
Economical, pocket sized meter is perfect for less demanding applications
Waterproof, dustproof housings float
Easy to use; push-button calibration with auto buffer recognition
Includes transparent electrode cover / sample cup
Push-button calibration, HOLD function, and error messages

OAKTON's new EcoTestr is economical and easy to use. With its crystal clear, ergonomically designed display, you can easily view measurements at a glance.
Each rugged tester has waterproof and dustproof housing for use in dirty and damp field conditions. Simply dip and read-the orientation of the display means there's no need to turn your head or tilt the tester
Single-junction electrode is well-suited for general purpose applications. Recessed bulb with bulb guard protects against breakage
One point calibration with auto-buffer recognition for quick calibrations. Hold function locks in measured value. Auto-off function preserves batteries.

Specifications
Range: 0.0 to 14.0 pH
Resolution: 0.1 pH
Accuracy: 0.1 pH
Temperature compensation: none, bring samples and standards to
room temperature
Calibration: one point
Buffer recognition: 4.0, 7.0, or 10.0
Display: three-digit vertical LCD
Power: four 1.5 V button cell batteries (included)
Battery life: >300 hours