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Ultrapen PT6 Nitrate and Temperature Pen

Ultrapen PT6 Nitrate and Temperature Pen



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

High Performance Features

  • Nitrate Concentration (ppm N or ppm NO3–) or mV
  • 1 and 2 Point Calibration Options
  • Proprietary ISE Sensor Design
  • Built-in Double Junction Reference Electrode
  • Compatible with EPA Approved Standard Method 4500-NO3–D
  • Live or Hold Mode - User Selectable
  • Auto-Off Feature – User Adjustable
  • Easy to Use - One Button Control
  • Rugged Design with Aircraft Aluminum Body
  • Durable, Epoxy Encapsulated Electronics
  • Waterproof
  • Powered by One N Type Battery (Included)

PT6 Comes With:

  • PT6 Pocket Tester Pen - Battery Installed
  • User Replaceable Nitrate Sensor – Installed
  • 100 ppm NO3–N Standard Solution – 2 oz.
  • Ionic Strength Adjuster (ISA) – 2 oz.
  • Graduated Cylinder with Cap – 2 ea.
  • 100 μL Pipette – with Tip
  • Protective Cap
  • Pocket Clip
  • Lanyard
  • PT6 Operation Manual


Mode Action
Hold Displays real-time readings until the LED turns solid ON, then displays final readings.
Live Displays real-time readings continuously for up to 5 minutes.


Mode Parameter Measured
N Display alternates between Nitrate as Nitrogen (NO3–N), and Temperature
NO3 Display alternates between Nitrate (NO3–), and Temperature
mV Display alternates between millivolt (mV), and Temperature


  Nitrate as Nitrogen NO3–N Nitrate NO3 Temperature
Ranges 1-1400 ppm 4.4-6200 ppm 0 - 71°C / 32 - 160°F
Accuracy¹ ±10% of the reading ±10% of the reading ± 0.1°C
Resolution 0.1 ppm 0.1 ppm 0.1°C/F
pH Range 3-11 pH
Time to Reading Stabilization 10 - 180 seconds
Power Consumption Active Mode: 33 - 140 mA
Physical Dimensions 17.15 cm L x 1.59 cm D or 6.75 in. L x .625 in. D
Weight 54 g or 1.94 oz.
Case Material Anodized Aircraft Aluminum with Protective Coating
Battery Type N type, Alkaline 1.5 V
Calibration Standard Solutions 1, 10, 100, or 1000 ppm NO3–N
Operating / Storage Temperature 0-40°C / 32-104°F²
Enclosure Ratings IP67 and NEMA 6
EN61236-1: 2006 - Annex A: 2008; Electrostatic discharge to case of instrument may cause PT6 to spontaneously power ON. In this case, the PT6 will power OFF after several seconds.
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

¹ Accuracy of measuring standard solutions after Temperature Controlled, 2-Point Calibration with one order of concentration difference.
² For extended life of the sensor, store the pen in a cool location (5-25°C)

Click to order Standard Solutions and Buffers

The PT6, excluding the Sensor and Battery, has a one (1) year limited warranty.
The Nitrate sensor has a six (6) month limited warranty.

Includes battery installed, protective cap, 100 ppm solution (2 oz.), ISA (2 oz.), 2 graduated cylinders with caps, pipette with tip, pocket clip, lanyard, operation manual

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: PT6, PTBT6, BATT11768, BATT11768-B3, RPT6 & PTSC1

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