Series 4 Portable pH Meter Kit


QP451 Portable pH Meter Kit.

SKU: QP451 Kit Category:

The QP451 Portable pH Meter Kit is the first in a series of Quality Portable meters from EDT directION.  All are state of the art instruments made in the UK.

The clear graphic display guides the user through every operation ensuring that even the most unskilled operation can perform accurate analysis without an instruction manual. Every instrument in the QP range has a mini USB output for printing or exporting sample and calibration data. If printing is not possible there is a 10,000 data point, 64 file internal memory to enable field data to be recorded.

Power is via 4 x AA batteries. Lifetime is impressive due to a highly efficient display with brightness and contrast options along with many other power saving features.

Other features include:

  • 1 ,2 or 3 Point Calibration
  • Auto endpoint
  • Automatic Temperature Compensation (ATC)
  • Automatic Buffer Recognition
  • Buffer correction
  • Calibration alarms
  • Millivolt and Relative millivolt modes
  • Data logging and internal Data storage.
  • Micro USB Data output
  • Real time clock
  • BNC connector for pH Electrodes
  • Impressive array of accessories and consumables.
  • Tough Waterproof Carry case


The QP range of products are extremely Tough, Splash-proof and practical and carry a two year warranty.

The Portable pH Meter Kit comes complete in a Tough carry Case and comprises:

QP451 Meter, E8080 pH Electrode, E8051 ATC probe, 4 x AA Batteries, Buffer capsules pH4 (A3096) and pH7 (A3097), Carry case E8401.

Watch a QP451 Kit Unpacking Below:

For more videos, visit our YouTube Channel.

Additional information

Weight 2 kg
Dimensions 30 × 25 × 20 cm
Temperature Compensation

Fully Automatic


BNC (pH) 3.5mm Jack (ATC).

pH Range

-2 to 16.00 pH Units

pH Calibration

1, 2 or 3 point Automatic Calibration with Auto Endpoint.

mV Range

+/- 1999.9 mV

mV Accuracy

+/- 0.1 mV over the entire range.

pH Accuracy

Resolves to +/- 0.01 pH Units


350g (Meter Only)

Power Requirement

4 x AA Battery


175 x 88 x 48mm (Meter Only)

Temperature Accuracy

+/- 0.1 Degree over the -5 to 105 Degree range

Battery Life

250 hours continuous use. Auto switch off and Power saving options.

Commodity Code


Data Output

Mini USB. Outputs csv. 38400 Baud

Data Storage

Dynamic storage of up to 64 Data files. Logging maximum 10,000 data points.


2 Year Warranty. Excludes Electrodes accessories and consumables and Misuse.


There are no reviews yet.

Be the first to review “Series 4 Portable pH Meter Kit”

Your email address will not be published. Required fields are marked *

Product Brochure


Instruction Manual