PEH51 Sensor

Portable Holder (PEH) with
Model 51 pH Electrode


  • Measuring Range: 2 to 12 pH
  • Temp. Range: 10°C to 60°C
  • 20ft sensor cable
  • sensor connector




Portable Holder (PEH) with Model 51 pH Electrode

The Portable Electrode Holder (PEH) with Model 51 replaceable pH Electrode cartridge comprise the pH sensor, which incorporates embedded electronics, custom geometry, and a field proven cartridge. The embedded electronics in the PEH Holder includes a built-in electrically isolated preamp, which results in reliable digital communications and temperature compensation circuitry. Our flat glass / double reference junction construction yields a field proven cartridge producing long-lasting reliable measurements.

PEH51 Sensor

Model 51 pH Electrode

The M-51 is a cartridge type electrode making replacement simple and easy. The cartridge is sealed into the holder with a reliable double o-ring seal. All replacement electrodes ship complete with o-rings. The threaded TNC connector at the top of the electrode body ensures a reliable electrical connection to the holder.

M-51 Electrode

In the center of the measuring surface is the pH sensitive flat glass. This surface is surrounded by the flat porous reference junction. The large area of this porous junction has thousands of pores allowing for excellent sample contact. The electrode is enclosed by the electrode body. Built into the electrode body is a sealed, gel filled double junction reference half cell. This design adds an extra barrier against contaminants. This also allows the electrode to be used in applications where sulfides, heavy metal ions, and similar materials are present.

PEH51 with PortaCaddie

The InsiteIG PortaCaddie is an organizational tool, sold with each sensor, that captures the meter along with the sensor and cable. The PortaCaddie is designed to manage the cable to eliminate tangles while using the system in the field. The meter, sensor, and cable are retained securely during transport and are easily deployed at the desired test location. The rugged design was built specifically for the rigors encountered by field instrumentation. The PortaCaddie was designed to offer a level of protection to the meter, sensor, and cable.

See our InsiteIG Portable Meter (IPM)