# ULTRAPEN™ PTBTx™

> iOS app for water quality measurement with compatible Myron L pocket testers. (iPhone/iPad app by Myron L Company.)

- Source: https://appshunter.io/ios/app/ultrapen-ptbtx/id885545007 (this page in markdown: same URL + `.md`)
- Developer: [Myron L Company](https://appshunter.io/developer/885545010)
- Category: Utilities
- Price: Free
- Rating: 3.70/5 from 3 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 9 MB
- Languages: American English
- Released: 2014-06-29
- Data updated: 2026-06-09
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/ultrapen-ptbtx/id885545007/reviews.md

## What is ULTRAPEN™ PTBTx™?

REQUIRED EQUIPMENT: 
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Myron L® Company ULTRAPEN PTBTX (First Generation Ultrapen; Lot Code Y1930 and earlier)
Models: PTBT1; PTBT2 or PTBT3

DOES NOT WORK with Myron L® Company ULTRAPEN PTBTx2 (Second Generation; Lot Code Y1931 and later).


INTRODUCTION
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The ULTRAPEN PTBTX App is a GUI and communication application that, when paired with one of Myron L® Company's First generation ULTRAPEN pocket testers, converts your iOS device into an accurate, reliable, fast and simple to use measurement and data storage device to use in diverse water quality applications. 


ADVANCED FEATURES INCLUDE:
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- Wireless communication between the tester and your iOS device means no bothersome wires to interfere with quickly moving from sample to sample and the paired mobile device can be held safely away from the liquid samples being measured.
- Intuitive GUI design for easily pairing, calibrating, measuring and recording measurements in the App on-board database.  
- The database can be sorted, filtered and exported via your devices email App as either .xls; .xlsx, .csv formatted attachments
- Automatic records made of every calibration performed on each PTBTX2 pocket tester. 


WORKS WITH ULTRAPENX2 POCKET TESTERS 
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ULTRAPEN PTBT1 (First Generation)  - Measures Conductivity, Total Dissolved Solids (TDS), Salinity, and Temperature. 

ULTRAPEN PTBT2 (First Generation) - Measures pH and Temperature.  Can be calibrated using 1, 2, and 3 point calibration options.

ULTRAPEN  PTBT3 (First Generation) - Measures Oxidation Reduction Potential (ORP) and Temperature.  Can be calibrated to one of three different calibration points (80 mV, 260 mV, or 470 mV).

The PTBT2 and the PTBT3 Include a sample and hold mode as well as a live measurements mode. 

~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 
Myron L® is a registered trademark of the Myron L® Company, 2450 Impala Drive, Carlsbad CA, 92010-7226
Bluetooth® is a registered trademark of Bluetooth SIG

## Key features

- Wireless communication with pocket testers
- Intuitive GUI for pairing and calibration
- On-board database for measurements
- Data export in .xls, .xlsx, .csv formats
- Automatic calibration records
- Supports conductivity, TDS, salinity, pH, ORP, and temperature

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/ultrapen-ptbtx/id885545007/reviews.md

### 5/5 — Cool

*2017-04-16*

This is great I do chrome,zinc, anodize, nickel and I'm all ways checking the ph with this cool gadget.

## Frequently asked questions about ULTRAPEN™ PTBTx™

### What is ULTRAPEN PTBTx?

ULTRAPEN PTBTx is a GUI and communication application that, when paired with a First Generation Myron L® Company ULTRAPEN pocket tester, turns your iOS device into a measurement and data storage tool for water quality applications.

### Which ULTRAPEN models are compatible with ULTRAPEN PTBTx?

This app is compatible with Myron L® Company's First Generation ULTRAPEN pocket testers, specifically models PTBT1, PTBT2, and PTBT3 with Lot Code Y1930 and earlier. It does NOT work with the Second Generation ULTRAPEN PTBTx2.

### What water parameters can ULTRAPEN PTBTx measure?

Depending on the compatible pocket tester, it can measure Conductivity, Total Dissolved Solids (TDS), Salinity, Temperature, pH, and Oxidation Reduction Potential (ORP).

### How does ULTRAPEN PTBTx store and export data?

The app features an on-board database to record measurements. This data can be sorted, filtered, and exported via your device's email app in .xls, .xlsx, or .csv formats.

### Does ULTRAPEN PTBTx have ads?

No, ULTRAPEN PTBTx is ad-free. The application does not contain advertisements.

### How often is ULTRAPEN PTBTx updated?

The latest version, 1.1, was released on April 26, 2022. Updates typically address bug fixes and compatibility improvements for the app and its supported hardware.

### What is the user rating for ULTRAPEN PTBTx?

ULTRAPEN PTBTx has a rating of 3.7 stars based on 3 user reviews.

### What devices does ULTRAPEN PTBTx support?

ULTRAPEN PTBTx is available for iPhone and iPod devices.

## Version history (last 5 releases)

### 1.1 — 2022-04-26

Bug Fixes

### 1.0.7 — 2017-12-08

This app has been updated by Apple to display the Apple Watch app icon.

Compatible with iOS 11

### 1.0.6 — 2017-04-15

Optimized for iOS 10. Corrects several bugs related to Ultrapen PTBTx Calibration, record sorting and GPS location sorting.

### 1.0.5 — 2017-02-01

Correct range limits for PTBT2 (pH) measurements.

### 1.0.4 — 2016-05-23

Fixed minor bugs

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## More apps by Myron L Company

- [PTBTX2™](https://appshunter.io/ios/app/ptbtx2/id1338848296)

All apps by Myron L Company: https://appshunter.io/developer/885545010

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-09.*