The Myron L Ultrapen™ PT5 is a portable pocket tester pen for dissolved oxygen (DO) and temperature, delivering industry-leading accuracy in a rugged, one-handed instrument. Display DO in concentration, % saturation, or both — and adjust for altitude and salinity for accurate readings in any conditions.
- Industry-leading accuracy — reliable, repeatable dissolved-oxygen results
- Flexible DO display — concentration, % saturation, or both
- Altitude & salinity adjustable — accurate across environments
- Three calibration methods — air, water, and 0 ppm DO
- Dynamic membrane temperature correction — stable, precise readings
- Live or hold mode & adjustable auto-off — user-selectable operation
- Proprietary user-replaceable sensor — serviceable in the field
- Rugged & waterproof — epoxy-encapsulated electronics in an aircraft-aluminum body
Comes with:
- PT5 pocket tester pen (battery installed)
- User-replaceable DO sensor (installed)
- Membrane cap assemblies (3)
- DO reference electrolyte solution (2 oz)
- Syringe with tip
- Protective/hydration cap
- Pocket clip
- Quick start guide
Technical Specifications
| Product | Myron L Ultrapen PT5 | Measures | Dissolved oxygen and temperature |
| DO Display | Concentration, % saturation, or both | Adjustments | Altitude and salinity |
| Calibration | 3 methods: air, water, 0 ppm DO | Temp. Correction | Dynamic membrane |
| Modes | Live or hold; adjustable auto-off | Sensor | Proprietary, user-replaceable |
| Body | Aircraft aluminum; epoxy-encapsulated electronics; waterproof | Battery | One N-type (included) |
| Includes | PT5 pen (battery installed), user-replaceable DO sensor (installed), 3 membrane cap assemblies, DO reference electrolyte solution (2 oz), syringe with tip, protective/hydration cap, pocket clip, quick start guide | ||
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