Myron L Instruments

New Products

900 Series Monitor/Controller

Downloadable Files

900 Series Monitor/Controller Brochure900 Series Monitor/Controller Brochure
900 Series Monitor/Controller Operations Manual900 Series Monitor/Controller Operations Manual

PTBTX App for Ultrapens


  • Display Readings on IPhone or IPad
  • Store Readings and Export to Laptop

Downloadable Files

PT1 with Bluetooth Connectivity
Ultrapen PT2 with Bluetooth Connectivity
PT2 pH pen with Bluetooth connectivity

ULTRAPEN PT1-Conductivity/ TDS/ Salinity/ Temperature


ULTRAPEN™PT1--Conductivity/TDS/Salinity Pen
This instrument is designed to be extremely accurate, fast and simple to use in diverse water quality applications. Advanced features include the ability to select from 3 different solution types that model the characteristics of the most commonly encountered types of water; proprietary temperature compensation and TDS conversion algorithms; highly stable microprocessor-based circuitry; user-intuitive design; and waterproof housing. A true, one-handed instrument, the PT1 is easy to calibrate and easy to use. To take a measurement, you simply press a button then dip the pen in solution. Results display in seconds.HIGH PERFORMANCE FEATURES
Accuracy of ±1% of READING ±.2% at calibration point
Reliable Repeatable Results
Automatic temperature compensation
Accuracy of benchtop lab equipment in an affordable, portable, compact pen
Rugged, reliable, shock-resistant fully encapsulated electronics, body constructed of aircraft aluminum
Simple one button function
Specially designed with measurement ranges and solution modes to meet the water quality testing needs of many applications
High capacity N-type battery included
Boilers and Cooling Towers
Fountain Solutions for Printing
Pool and Spa
Food and Beverage
Reverse Osmosis
Measurement Range: 1 - 9999 μS or ppm (0.0010 - 9.999 ppt salinity)
Accuracy: ± 1% of reading
Repeatability: < 1000 μS or ppm ± 1 Count
≥ 1000 μS or ppm ± 0.3% of reading
Resolution: Electrical Conductivity (EC) and TDS:
0.1 for 1.0 - 99.9 μS or ppm
1 for 100 - 9999 μS or ppm
0.0001 for 0.0010 - 0.0999 ppt
0.001 for 0.100 - 9.999 ppt
0.1 ºC or ºF

Time to Reading Stabilization: 10 - 20 seconds
Active Mode Power Consumption: 30 - 100 mA
Sleep Mode Power Consumption: 2 μA
Temperature Measurement Range: 0 - 71 °C or 32 - 160 °F
Temperature Accuracy Displayed: ± 0.1 ºC or ± 0.2 ºF
Temperature Compensation Method: Automatic to 25 ºC
Physical Dimensions: 15.87 cm L x 1.91 cm D or 6.25 in. L x .55 in. D
Weight: 55 g or 1.94 oz.
Case Material: Anodized Aluminum with UV Protective Coating
Battery Type: N type, Alkaline
Battery Voltage: 1.5 V
Calibration Solution Point: 1800 μS KCl; 3000 ppm 442™ (2027 ppm NaCl)
Operating/Storage Temperature: 0 - 55 ºC or 32 - 131 ºF
Water Resistance: IP67 and NEMA 6
EN61236-1: 2006 - Annex A: 2008 Electrostatic discharge to case of instrument may
cause PT1 to spontaneously power on. In this case,
the PT1 will power off after several seconds.

Mode Parameter Solution Model Units
Cond KCl (EC) Potassium Chloride microsiemens (μS)
tdS 442 Total Dissolved Solids (TDS) 442™ Myron L Natural Water Standard parts per million (ppm)
tdS NaCl TDS Sodium Chloride ppm
SALt 442 Salinity 442™ Myron L Natural Water Standard parts per thousand (ppt)
SALt NaCl Salinity Sodium Chloride ppt
Standard Solutions for calibration:
MODEL#s: KCL-1800, 442-3000 (2027 ppm Na


  • Accurate--Reliable/ repeatable results
  • Automatic Temperature Compensation
  • 1 Year Warranty
  • Contact Quantrol for a free demo
  • Accurate-- within +/- 1% of reading
  • Autoranging

Downloadable Files

Conductivity Salinity and TDS
ULTRAPEN PT1 Manual Conductivity/TDS/SalinityULTRAPEN PT1 Manual Conductivity/TDS/Salinity
Professional water analysis of Conductivity/TDS/ Salinity
PT1 with Bluetooth Connectivity

Ultrapen PT2 pH Pen

This instrument is designed to be extremely accurate, fast and simple to use in diverse water quality applications. Advanced features include automatic temperature compensation; highly stable microprocessor-based circuitry; user-intuitive design; and waterproof housing. A true one-handed instrument, the PT2 is easy to calibrate and easy to use. To take a measurement, you simply push a button then dip the pen in solution. Results display in seconds.


Standard Solutions for calibration:
The ULTRAPEN™ PT2 requires pH 4, pH 7, and pH 10 buffer solutions for wet calibration and pH Sensor Storage Solution for proper storage.
Order model#s: PH4, PH7, PH10, and PHSS

Replacement pH Sensor:
The ULTRAPEN™ PT2 features a user replaceable pH sensor. Installation instructions included with sensor.
Order model#: RPT2


  • Accuracy of ±0.01 pH
  • Reliable, repeatable results
  • Waterproof
  • Rugged, shock-resistant, fully encapsulated electronics
  • Proprietary sensor design
  • Simple one button function
  • Automatic temperature compensation
  • 1, 2 and 3 point calibration

Downloadable Files

Myron L Ultrapen PT2 BrochureMyron L Ultrapen PT2 Brochure
pH Pen
ULTRAPEN PT2 pH Pen  ManualULTRAPEN PT2 pH Pen Manual
pH Pen
Ultrapen PT2 with Bluetooth Connectivity
PT2 pH pen with Bluetooth connectivity


The Myron L ULTRAPEN PT3 is extremely accurate, fast, and simple to use in diverse water quality applications requiring professional water analysis for ORP/temperature. Advanced features include highly stable microprocessor-based circuitry; automatic temperature compensation from 15ºC to 30ºC while in calibration mode; user-intuitive design; and waterproof housing. A true one-handed instrument, the PT3 is easy to calibrate and easy to use. To take a measurement, you simply push a button then dip the PT3 in solution. Results display in seconds using the stabilized "HOLD" mode. "LIVE" mode continously displays "real time" readings.

Keep your ULTRAPEN PT3 accurate by using the three ORP calibration solutions (80 mV, 260mV and 470 mv) and sensor storage solution.

Each PT3 Pen includes battery, sample scoop, soaker cap, pocket clip, holster, lanyard, operating instructions and ORP electrode cleaning paper.


  • Two measurement modes--
  • Automatic temperature compensation in calibration mode
  • Waterproof
  • 1 year warranty on instrument; 6 month warranty on sensor
  • Accuracy of ±10 mV ORP
  • Three calibration ranges with automatic range recognition

Downloadable Files

ORP and Free ChlorineORP and Free Chlorine
ORP & Temperature Pen Professional Water Analysis

ULTRAPEN PT4-Free Chlorine Equivalent

Professional water analysis instrument combines pH and ORP measurements to deliver free chlorine equivalent with accuracy up to 0.3 FCE. Stay accurate by calibrating with NIST pH and ORP standards available through Quantrol.


  • Can be used to measure non-chlorine oxidizers
  • Eliminates problems associated with the DPD test: no chemistry effects and no color interpretation.
  • Accurate results in colored or turbid water
  • Predictive ORP improves accuracy and speeds analysis

Downloadable Files

Myron L FCE Free Chlorine Measurement with Handheld InstrumentsMyron L FCE Free Chlorine Measurement with Handheld Instruments
Myron L ULTRAPEN PT4 BrochureMyron L ULTRAPEN PT4 Brochure
ORP and Free ChlorineORP and Free Chlorine
ULTRAPEN PT4 Free Chlorine and TemperatureULTRAPEN PT4 Free Chlorine and Temperature
Free Chlorine Equivalent and Temperature Pen
Water Quality Instrumentation from Myron LWater Quality Instrumentation from Myron L
Newest products (Nov 2013)available from Myron L

Ultrapen PT Dissolved Oxygen


  • Industry Leading Accuracy
  • Adjustable for Altitude and Salinity
  • Three Calibration Methods: Air, Water and 0 ppm DO
  • Dynamic Membrane Temperature Correction
  • Easy to Use One Hand Operation
  • Waterproof
  • Rugged Design
  • Proprietary Sensor

Downloadable Files

Myron L Ultrapen PT5 BrochureMyron L Ultrapen PT5 Brochure
Myron L Ultrapen PT5 Dissolved Oxygen ManualMyron L Ultrapen PT5 Dissolved Oxygen Manual

Ultrameter III 9PTK

Ultrameter III 9PTK Titration Kit

AHL Titration Kit
Our latest digital handheld, the Ultrameter III 9P, is based on the tried and tested design of the Ultrameter II. The 9P adds the ability to perform in-cell alkalinity and hardness titrations either as stand-alone measurements or as part of an LSI calculation. Alkalinity, hardness, pH and temperature values can be manipulated in the LSI calculator to predict the effect of changes on water balance. Measurements are extremely accurate. And the 9P is simple to operate and maintain.Alkalinity, Hardness & LSI Titration Kit.
A hard foam-lined case organizes and protects all contents: The 9P; 9P cell extender; required reagents for in-cell alkalinity, hardness and LSI titrations; standard calibration solutions for all parameters; storage solution to protect the pH/ ORP sensor; and pipette for precision dispensing with additional tips. Sensors are internal and included. The 9P is also capable of wireless communication with the bluDock™ option installed. The bluDock uses Bluetooth® technology to transfer data wirelessly to your personal computer and comes with user-intuitive software that makes it easy to analyze saved water sample data. 9P Titration Kit
includes 9P; cell extender; 100µL pipette; 12 tips; 3 buffers (pH 4, 7, and 10); pH/ORP Sensor Storage Solution; ORP Conditioner Solution; titration reagents and standards H2SO4-1, HCl-3, NAOH, EDTA-LC, EDTA-HC, Alkalinity Standard 100 and Hardness Standard 200; standard solutions KCI-7000 and 442-3000. All bottles are 2 oz/59 ml. model: 9PTK

9PTK AHL Titration Kit can be ordered with the bluDock Accessory Package, as well. kit with bludock: 9PTK-BDIn-cell titration functions

The Ultrameter III adds the ability to perform in-cell conductometric titrations that provides a convenient way to determine alkalinity, hardness and LSI in the field. This eliminates the need to collect and transport samples to another location for analysis. User intuitive display prompts guide you through titration procedures from start to finish. All required reagents and equipment are included in the 9P titration kit. Hardness unit conversion

The Hardness titration, LSI Titration and LSI Calculator functions allow you to set the hardness unit preference to either grains of hardness or ppm CaCO3. Free chlorine readings

The Ultrameter III features the ability to convert Oxidation Reduction Potential measurements from mV to parts per million (ppm) free chlorine. The mV to ppm free chlorine conversion algorithm is based on a conversion curve developed through extensive testing performed by the Myron L Company. The accuracy of low-range ppm free chlorine readings has been increased by extrapolating from the published data. With this new feature Myron L instruments can measure a dynamic range of sanitizer concentrations that is wider than the range of a colorimetric test kit. Accuracy you can trust

Like the Ultrameter II, the Ultrameter III delivers exceptional accuracy of ±1% of reading (±.1% at calibration point). This high level of accuracy is achieved through advanced four-electrode conductivity cell technology, a powerful microprocessor, proprietary circuit design and conversion algorithms for three of the most common solution types, as well as a unique pH/ORP sensor. With displayed values of up to 9999, the full four-digit LCD ensures resolution levels never before possible in such affordable instruments. For accuracy in diverse applications, Ultrameter III allows you to select from 3 solution modes that model the behavior of the most common solution types: KCl, NaCl and 442™ Natural Water. Additionally, the Ultrameter III features a user adjustable conductivity/ TDS conversion ratio for greater accuracy when measuring solutions not contained in the microprocessor. The Ultrameter III is factory calibrated with NIST traceable solutions. Certification of traceability and NIST traceable standard solutions can be purchased as accessories for definitive calibration. Innovative Engineering

The Ultrameter III 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, electrometric measurements are accomplished in 3 easy steps:
1. Fill the cell cup
2. Push a parameter key
3. Take the reading

Temperature compensation and range selection are both rapid and automatic. User adjustable temperature compensation (up to 9.99%/°C) which can also be disabled for applications requiring non-compensated readings. Digital results display instantly. Measurement is continuous, displaying real-time readings rather than a static snapshot of the solution. Easy to calibrate

All calibrations are quickly accomplished by pressing the ▲ or ▼ 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. Water balance analysis

The Ultrameter III features both an LSI Calculator and an LSI Titration measurement mode. The Calculator allows you to perform what-if scenarios to predict how changes in solution parameters would affect the water balance of a system. The titration measurement function allows you to accurately calculate a saturation index value of a specific solution to determine whether the solution is balanced, scaling or corrosive. Wireless Benefits

The optional bluDock™ accessory package is an integrated data solution for your record keeping requirements, eliminating the need for additional hardware, wires and hassle. Because the user never touches the data, there is little opportunity for data tampering and human error. bluDock software has an easy to use interface with user intuitive functions for storing, sorting and exporting data. Specifications
Ultrameter III 9P


Display: 4 Digit LCD
Dimensions (LxWxH): 196 x 68 x 64 mm/7.7 x 2.7 x 2.5 in.
Weight: 352 g/12.4 oz.
Case/Cell Material: VALOX®*
Cell Capacities(w/o cell extender): pH/ORP: 1,2 ml/0.04 oz.
Cond/TDS/Res: 5ml/0.2 oz.
Power: 9V Alkaline Battery
Battery Life: 100 Hours/5000 Readings
Operating/Storage Temperature: 0-55°C/32-132°F
Protection Ratings: IP67/NEMA 6 (waterproof to 1 meter/3 feet)
Hard Carry Case Kit


Outer Material: ABS plastic
Inner Material: Foam
Dimensions: L x W x D: 13.6 x 10 x 5.4 in./346 x 254 x 137 mm
* ® Sabic Innovative Plastics IP BV
Limited Warranty
All Myron L Ultrameter IIIs have a Two (2) Year Limited Warranty. The pH/ORP sensors have a Six (6) Month Limited Warranty. Warranty is limited to the repair or replacement of the Ultrameter III only, at our discretion. Myron L Company assumes no other responsibility or liability.Range of readings
Conductivity: 0–9999 µS/cm 10–200 mS/cm in 5 autoranges
Resistivity: 10 KΩ–30 MΩ
TDS: 0–9999 ppm 10–200 ppt in 5 autoranges
pH: 0–14 pH
ORP: ±999 mV
Free Chlorine: 0.00–10.00 ppm (5 Alkalinity Titration: 10-800 ppm
Hardness Titration: 0-1710 ppm 0-100 grains
LSI Titration: -10 to +10
Temperature: 0–71°C/32–160°F

Features & Benefits
Measures 9 Parameters: Conductivity, Resistivity, TDS, Alkalinity,
Hardness, LSI, pH, ORP/Free Chlorine, Temperature
LSI Calculator for hypothetical water balance calculations
Wireless data transfer capability with bluDock™ option
Autoranging delivers increased resolution across diverse applications
Adjustable Temperature Compensation and Cond/TDS conversion ratios for user-defined solutions
Nonvolatile memory of up to 100 readings for stored data protection
Date & time stamp makes record-keeping a snap
pH calibration prompts alert you when maintenance is required
Auto-off minimizes energy consumption
Low battery indicator

Accessories, Replacement items and Solutions
Soft protective case is constructed of padded Nylon and features a belt clip for hands-free mobility.
models: UCC (Blue); UCCDT (Desert Tan)
Certificates confirming the NIST traceability of an Ultrameter III are available (must be specified when placing instrument order). model: MC9
Standard Solutions are necessary to maintain accuracy and for periodic calibration of conductivity/ TDS parameters. All Standard Solutions are NIST traceable for your complete confidence. recommended values: KCl-7000 (conductivity), 442-3000 (TDS).
Hardness and Alkalinity Reagents and
Calibration Solutions are required for alkalinity, hardness and LSI titrations. models: Reagents H2SO4-1, HCL-3, NAOH, EDTA-LC and EDTA-HC available in 2 oz/59 ml and 1 qt/1 L. Alkalinity Standard 100 and Hardness Standard 200 available in 2 oz/59 ml, 1 qt/1 L, and 1 gal/3,8 L.
pH Sensor Storage Solution preserves sensor for longer life. Available in 2 oz/59 ml, 1 qt/1 L, and 1 gal/3,8 L. Model: SS2OZ, SSQ and SSG
pH Buffers are necessary to maintain accuracy and for periodic calibration of pH and ORP parameters. Calibration with pH 7 Buffer is especially important. All pH 4, 7, and 10 Buffers are NIST traceable and are available in 2 oz/59 ml, 1 qt/1 L, and 1 gal/3,8 L.
Certificate of NIST traceability for pH Buffer or Conductivity Standard Solutions are available (must be specified when placing solution order). model: SC
Replacement pH/ORP Sensor user-replaceable; features a unique porous liquid-junction. model: RPR
Myron L M’Pet 100µL pipette.
model: FVMP-100
Replacement tips for Myron L m’pet micropipette. Bag of 48.
model: PTIP100-48
bluDock™ Wireless Data Transfer Accessory Package includes bluDock™, Macintosh/PC application software for downloading data, dongle and printed instructions.
model: BLUDOCK


  • Easy--follow the on screen prompts
  • Convenient- measures nine most common water parameters in a single, handheld instrument
  • Reliable--built on the Myron L microprocessor platform
  • More Accurate Titrations-- end points measured conductometrically; not subjectively by the operator.
  • Contact Quantrol for a free demo

Downloadable Files

Ultrameter III 9PTK BrochureUltrameter III 9PTK Brochure
Hand held microprocessor instrument that measures nine water quality parameters including hardness and alkalinity.
Ultrameter III 9PTK ManualUltrameter III 9PTK Manual
Ultrameter III 9PTK Titration Kit Manual
Ultrameter III 9PTK Quick Start GuideUltrameter III 9PTK Quick Start Guide
Ultrameter III 9PTK Quick Start Guide/ Abbreviated instructions