Ultrameter II 6PSI: Replaced by 6PIIFCE see this link 

Accuracy You Can Trust

Both Ultrameter II models deliver performance of ±1% of reading  (not merely full scale). This high level of  accuracy has been achieved through advanced  four-electrode conductivity cell technology, a  unique pH/ORP sensor and powerful microprocessor  based circuitry. With displayed values of up to  9999, the full four-digit LCD ensures resolution  levels never before possible in such affordable  instruments. Factory calibrated with NIST  traceable solutions, each Ultrameter II may be supplied with both certification of  traceability and NIST traceable solutions for  definitive calibration.

Innovative Engineering

The Ultrameter II 6Psi is a prime example of how high-tech  engineering  can greatly simplify and streamline a task.  Whether in the lab, industrial plant, or in a  remote field location, merely: 

1. Fill the cell cup
2. Push a parameter  key
3. Take the reading 

Temperature compensation and range  selection are both rapid and automatic. The Ultrameter 6PIIsi is a true one-hand operation instrument.

Easy to Calibrate

All Ultrameter calibrations are quickly accomplished by pressing the up or down keys  to agree with our NIST traceable Standard  Solution. When calibration is necessary, display  prompts simplify pH calibration and make sure  the correct buffer is being used. Plus, all  parameters (excluding factory-set temperature)  have an internal electronic setting that can be  used for field calibration and as a check on pH/ORP  sensor life.

Advanced Features

• Langelier Saturation Index Calculator
• Fully automatic temperature compensation
• User adjustable temperature compensation (up to 9.99%°C)  which also allows TC to be disabled for  applications requiring non-compensated readings.
• User adjustable conductivity/TDS conversion ratio for greater accuracy when measuring solutions  not contained in the microprocessor.
• Auto-shutoff maximizes the life of the single 9V battery to more than 100 hours/5000 tests.
• Non-volatile microprocessor provides data back-up, even when the battery is changed. This assures  all calibrations and memory data will be  retained.
• Extended life pH/ORP  sensor is user replaceable in the field.

 High Performance at a Low Cost

Beyond their affordable purchase price, Ultra-Fast, Ultra-Easy, Ultra-Powerful Ultrameter 6Psi saves both time and money. Measure for measure, Myron L Ultrameter gives you a better return on your investment than  any other hand-held instrument. To see for  yourself, purchase here or contact us for more information today.