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Ultrapen PT2 pH and Temperature Pen

Ultrapen PT2 pH and Temperature 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.

ULTRAPEN™ PT2 Benefits:

  • Reliable Repeatable Results
  • Accurate
  • Affordable
  • Easy to Use
  • Rugged Design
  • Ensure Product Quality
  • Reduce Waste
  • Protect the Environment

ULTRAPEN™ PT2 High Performance Features:

  • Accuracy of ±0.01 pH
  • 1, 2 and 3 Point Calibration
  • Proprietary Sensor Design
  • Automatic temperature compensation
  • Reliable Repeatable Results
  • Rugged, reliable, shock-resistant fully encapsulated electronics
  • Durable body constructed of aircraft aluminum
  • Simple one button function
  • High capacity N-type battery included
  • Waterproof


  • PT2 Pocket Tester Pen – Battery Installed
  • User Replaceable pH Sensor – Installed
  • Protective/Hydration Cap
  • Scoop
  • Pocket Clip
  • Quick Start Guide

ULTRAPEN™ PT2 Measurement Modes:

Hold Once stabilized, the readings are captured then displayed
LIVE Real-time readings are displayed continuously during measurement

ULTRAPEN™ PT2 Specifications:

pH Range: 0.00-14.00 pH
pH Accuracy: ± 0.01 pH (After Wet Calibration)*
pH Repeatability: ± 0.01 pH
pH Resolution: 0.01 pH
Temperature Range: 0-71°C/32-160°F
Temperature Accuracy: ±0.1°C
Temperature Repeatability: ±0.1°C/±0.1°F
Temperature Resolution: 0.1°C/0.1°F
Time to Reading Stabilization: 10-30 seconds
Power Consumption: Active Mode: 30 – 140 mA, Sleep Mode: 2 μA
Temperature Compensation: Automatic to 25°C
Physical Dimensions: 17.15 cm L x 1.59 cm D or 6.75 in. L x 0.625 in. D
Weight: 54 g/1.9 oz. (without soaker cap and lanyard)
Case Material: Anodized Aircraft Aluminum with Protective Coating
Battery Type: One N type, Alkaline, 1.5V
Calibration Solutions: pH4, pH7, pH10
Operating/Storage Temperature: 0-55°C or 32-131°F
Enclosure Ratings: IP67 and NEMA6
EN61236-1: 2006 – Annex A: 2008: Electrostatic discharge to the PT2 may cause it to spontaneously turn on. If this occurs, the PT2 will turn off.
WARNING! These products can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

ULTRAPEN™ PT2 Applications:

  • Agriculture
  • Hydroponics
  • Desalination
  • Aquaculture
  • Pharmaceutical
  • Boilers and Cooling Towers
  • Fountain Solutions for Printing
  • Horticulture
  • Wastewater
  • Pool and Spa
  • Food and Beverage
  • Irrigation
  • Reverse Osmosis
  • Plus Many More!

Click to order Standard Solutions and Buffers

The ULTRAPEN™ PT2 requires pH 4, pH 7, and pH 10 buffer solutions for wet calibration and pH Sensor Storage Solution for proper storage.

The PT2, excluding the sensor and battery, has a one (1) year limited warranty. The pH sensor has a six (6) month limited warranty.

Click for Operation Manuals / Instructions

Myron L® Ultrapen™ Series units have probes that can freeze and break and must ship 2nd Day Air with a heat pack.
Ignoring this requirement voids the warranty.

  • Models: PT2, PTBT2, BATT11768, BATT11768-B3, RPT2, PTSC & MC

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