Starting at $758.00

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  • SMART preamplifier stores calibration and other data
  • High temperature design increases sensor life
  • Fast, Accurate, & Stable Measurement
  • Rugged, Versatile Design
  • long lasting rebuildable reference
  • Quick connect cable or integral cable
  • VP8 Connector Cable in multiple lengths

The Rosemount Analytical PERpH-X. High Performance pH/ORP sensors incorporate several design innovations that prolong the life of the pH sensor in difficult applications. High temperatures cause deterioration of the glass pH sensing membrane, depletion of the reference electrolyte, and thermal stress on all sensor components. Use the Models 3300HT, 3400HT and 3500P to lower your total cost of ownership and avoid frequent sensor replacement.

The SMART option becomes enabled when used with the Model 1056, 1057 Analyzer and on 6081P wireless transmitter. The pH-loop capabilities include auto-recognition of the SMART sensor, automatic upload of calibration data and associated time stamp, historical recording of pH diagnostics (slope, offset, reference impedance, glass impedance). This trending data allows technicians to predict frequency of maintenance and estimate sensor life for a particular process condition. Additional SMART features include factory calibration, resetting SMART sensor calibration data with user menus without power cycling, and manufacturing information.

The PERpH-X sensors contain an enhanced double junction reference that is excellent for extreme applications. The outer gel based reference retains viscosity to resist the pumping actions of temperature and pressure. Predictive maintenance of the outer reference can extend the ultimate life of the pH sensor considerably by preventing concentration changes in the inner reference.

Reference flow into the process stream is controlled using a porous Teflon junction that can be replaced in the event of fouling or plugging. The specially designed junction is chemically resistant and has a large surface area to maintain a steady reference signal in dirty or oily applications.


Rosemount Analytical Connector Cable
Lengths of cable with VP8 sensor connectors
In Stock
Rosemount Analytical 11-conductor Extension Cable
Rosemount Analytical 23646-01 Extension Cable
11-cond shielded extension cable

Mounting Bracket


Please consider these optional accessories.

Rosemount Analytical pH Buffer Solutions
pH buffers for the precision calibration of pH meters
Rosemount Analytical Replacement O-ring Kits
Replacement o-rings for Teflon junction
Rosemount Analytical Refill Kits
30 cc Syringe (4-5 refills per syringe)
Rosemount Analytical Porous Teflon Reference Junction Kits
Porous teflon reference junction kit
Rosemount Analytical Solution Kits
Contain everything needed to rebuild the reference electrode
Rosemount Analytical 23166 Connector
1 x 1in with o-ring groove, in 316 SS or titanium
Rosemount Analytical 23555-00 Junction Box
Compatible with models 54, 5081, 1055 & Xmt preamplifiers
Rosemount Analytical 9550220 O ring
2-214, Kalrez, for Process Connector
Rosemount Analytical 99CC Calibration Certificate
One certificate per lot at standard factory ranges only, includes the model, serial and/or tag numbers (does not include actual test data)
Rosemount Analytical Electronic Calibration
Certificate for specific unit, includes model, serial and/or tag numbers, test standards, NIST report numbers, & the actual test data
Rosemount Analytical Certificate of Origin
Original certificate of origin with chamber of commerce stamp


This product can be used in the following applications: