PosiTector SmartLink Help Guide

PosiTector Advanced gage users: Refer to PosiTector App Help for PosiTector Advanced


PosiTector SmartLink App
Help Guide - AndroidTM


PosiTector SmartLink users only: This guide provides an overview of the PosiTector SmartLink App, independent of any particular probe. For detailed instructions, refer to the PosiTector SmartLink instruction manual specific to the connected probe type.

The PosiTector SmartLink and free mobile app allow you to wirelessly connect a wide selection of PosiTector probes to your smart device. Take full advantage of your device's keyboard, microphone, camera, internet data connection, etc. to simplify and enhance your measurement inspection process.

The PosiTector SmartLink measurement solution consists of a PosiTector App, PosiTector SmartLink device and compatible PosiTector probe. Compatible probes include the PosiTector SPG/RTR-H (surface profile), DPM (environmental conditions) and 6000 (coating thickness) probes.

Quick Start

For full functionality including the ability to take measurements, the PosiTector App requires a PosiTector SmartLink and compatible PosiTector probe.

Step 1: Ensure a PosiTector probe is connected to the PosiTector SmartLink.

Step 2: Power-up the PosiTector SmartLink by pressing the LED button. The button will blink blue.

Step 3: Select the PosiTector SmartLink App icon on your smart device.

Step 4: A list of available PosiTector SmartLinks (listed by connected probe type and serial number) will be displayed. Select the desired PosiTector SmartLink to connect.

The LED button on the PosiTector SmartLink will illuminate solid blue when successfully connected.

The probe model and serial number is engraved on the backside of the plastic probe connector (i.e. FN 212921).

PosiTector App

The PosiTector App turns your cell phone or tablet into an enhanced PosiTector gage. Requires a PosiTector SmartLink and a PosiTector 6000, DPM, SPG, or RTR-H probe.

Screen fonts, brightness and displayed language are inherited from your smart device settings. Currently the PosiTector App has language support for English, Spanish, French, German, Chinese and Korean. Screen orientation is fixed to portrait only, rotation to landscape is not supported.

Stored batch measurements, images and notes are all stored in the PosiTector App (on your smart device). The number of stored batch measurements is only limited by the memory available on your smart device. If the application is removed or a menu Reset is performed all stored measurements and associated data is permanently erased.

Prior to uninstalling the PosiTector App or performing a Reset it is recommended that you email measurement data or reports. This ensures that the data is available for future reference.

User Interface
The user interface was designed to combine the proven simplicity of PosiTector gages and the advanced functionality of a smart device's touch, swipe, keyboard, camera and more. The interface will be instantly recognizable to those familiar with PosiTector instruments.

(PosiTector 6000 probe in Memory mode shown)


Main Navigation Bar
The Main Navigation section is dynamic and may change from one screen to another.

In the above example, Search and Menu navigation options are available.

Search returns back to the list of available PosiTector SmartLink devices. Menu accesses the Main Menu

SmartLink Status Bar
Displays information about the connected PosiTector SmartLink and associated probe.

The above example indicates that the PosiTector SmartLink battery status is full and connected to a PosiTector 6000 FN probe (serial number: 212921).

Measurement Area
Displays measurement related information. The above coating thickness example shows the last measurement (54 microns) on a ferrous (F) substrate using calibration adjustment Cal 1. Memory is on and measurements are being stored into Batch 6 (B6).

The measurement area will change depending on the connected probe type and selected modes.

Modes Icons and Units
Displays icons for active modes (such as the disk icon for Memory mode), current calibration adjustment type (F-Factory), and measurement units (microns).

The carousel is displayed when more than a single view (screen) is present. The number of dots represent the number of views. Swipe your finger horizontally across the screen to switch between views.

Tip: Some views contain interactive areas. For this reason we recommend swiping horizontally across the Mode Icons and Units bar.

Tool Bar
Displays available actions applicable to current operating modes (i.e. memory, statistics, HiLo, etc.)

PosiTector SmartLink

The PosiTector SmartLink acts as a relay between the PosiTector probe and PosiTector App using wireless Bluetooth Smart (BLE Bluetooth Low Energy). No pairing required! Auto-pairing Bluetooth connection works up to 10m (30 feet) away.

Information specific to currently selected modes (i.e. scan mode, fast mode, etc.) and user calibration adjustments (specific to each probe) are retained within the PosiTector SmartLink. This allows for seamless switching between smart devices (phone and tablet).

Measurement data is not stored within the PosiTector SmartLink. All measurement data (readings, images, notes) is stored within the PosiTector App on your smart device.

Connect a Probe
To connect a probe, slide the plastic probe connector in the direction of the arrow (shown above) until it locks in place. Reverse for detaching the probe.

Power-up / Power-down
The PosiTector SmartLink powers-up when the LED button is pressed. To preserve battery life, the PosiTector SmartLink powers-down after 3 minutes of no activity. All settings and stored measurement data are retained. Alternatively, press and hold the LED button until it turns red and shuts off (approximately 5 seconds).

Tri-Color LED Button
The LED visually provides connection and measurement status.

LED Color Status

  • Blue Blink = Not Connected to PosiTector App
  • Blue Solid = Connected to PosiTector App
  • Green Blink = Successful Measurement

PosiTector Probes

PosiTector SmartLink is compatible with PosiTector SPG/RTR-H (surface profile), DPM (environmental conditions) and 6000 (coating thickness) probes.

Connecting a Probe
To connect a probe, slide the plastic probe connector horizontally (in the direction of the arrow shown above) until it locks in place. Reverse for detaching the probe.

When powered-up the PosiTector SmartLink automatically determines what type of probe is attached and does a self-check. The probe type, model and serial number display when found within the app's Search screen.

The PosiTector App features probe hot-swap. During the measurement process, probes can be interchanged without the need to go back to the search screen. Simply swap probes (PosiTector SmartLink will power-down) and then power-up the PosiTector SmartLink. The PosiTector App will automatically recognize the probe and be ready to measure.

Factory Calibration
Every PosiTector probe is factory calibrated and includes a Certificate of Calibration. This factory calibration information is permanently stored within the probe and cannot be overwritten by the user. This allows for unmatched probe interchangeability.

Calibration Adjustment
Some probes, such as the PosiTector 6000 allow the user to make adjustments to the factory calibration (Zero, 1-Point and 2-Point). Calibration adjustments made by the user are stored within the PosiTector SmartLink.

Main Menu

Some PosiTector SmartLink functions are menu controlled. Access them by selecting Menu in the upper right of the display.

Menu lists are dynamic and options differ depending on the connected PosiTector probe type.

Memory Menu

The PosiTector App uses your smart device's storage for recording measurement data. Stored measurements can be reviewed on-screen or shared via email (PDF, CSV). Measurements are date and time-stamped (using date/time from smart device).

The following options appear within the Memory menu. Additional options may appear depending on the connected PosiTector SmartLink and probe type.

New Batch
Closes any currently opened batch and creates a new batch named using the lowest available number. For example, if only Batch 1 and Batch 3 exist, then Batch 2 would be created and made the current batch.

The icon appears and basic statistics are displayed. Each measurement will be displayed and stored into this new batch. On screen statistics are immediately updated with each measurement. New batches are date-stamped at the time they are created.

Shortcut: When a batch is open, press the LED button on the PosiTector SmartLink or icon on the display to create a new batch (6000, SPG, RTR-H probes only).

The following 3 screen views are available when a batch is open (Memory ON). Swipe your finger horizontally across the screen to switch between views.


Batch Summary View
In the PosiTector 6000 memory example below, the batch name is B9 and contains 5 measurements.

Use the Tool bar icons to change the batch name, add batch notes and attach an image.

Delete or Ignore last reading from the current open batch. When selected, the following menu appears.

Ignore Readings are retained within the batch but are excluded from the report's statistical summaries and charts. The ignored readings are highlighted within the Batch Readings view (shown below).

Delete Reading permanently removes the selected measurement from the current batch.

Cancel exits the menu.


New Batch (6000, SPG, RTR-H probes)
Closes any open batch and creates a new batch name using the lowest available number.

PosiTector DPM probes store a dataset into the batch when the button is pressed.


Add Photo to the currently opened batch or reading.

Add Image Annotation

This drawing tool is ideal for identifying a specific location or area within an image. Choose from three paint brush colors - Red, Green or Blue. Use finger or stylus to draw over the displayed image.


Batch Photo, Reading Photos and Image Annotations can be included in reports. The photo can be resized or hidden from reports within the Memory >> Batch Report Configuration menu.

Connection to a PosiTector SmartLink is not required to add a photo or image annotation to an existing batch.


Add Notes to currently opened batch or reading.

Change the batch name and add batch notes using your smart device's keyboard or dictation tools.

Batch names/notes appear on reports.


Share Batch

Share/view professional PDF reports and CSV data instantly via email, Dropbox or other applications on your smart device.


Generate PDF reports instantly and share via email, Dropbox or other applications on your smart device.

A PDF viewer must be installed to view generated PDF report. PDF viewers such as Adobe Acrobat are available for free on Google Play.

Batch reports can be customized within the Batch Report Configuration menu.


Email CSV (comma-delimited) comma-separated text files which can easily be imported into supporting applications such as spreadsheets and databases. A .json formatted file is also included.


Batch Readings View

Lists all readings contained in the current batch. New readings are added to the list instantly as they are taken.

A note and/or photo can be added to each individual reading. Notes and photos can be displayed in batch reports.


Batch Chart View

Display an x-y chart of measurements contained in the current batch. The chart is instantly updated as measurements are taken.

Pinch the active region of the chart to zoom the view.


Lists all stored batches. Select the desired batch to open.

Additional measurements can be added to existing batches if the original probe is attached to the PosiTector SmartLink (must be same PosiTector SmartLink/probe combination).

Opening a batch that was not created with the currently attached probe will disconnect the PosiTector SmartLink from the PosiTector App. You will still be able to add notes, photos, etc. to the batch.


Closes the current batch and turns Memory OFF.

Batch measurement data is retained when a batch is closed.


Permanently remove a batch from the PosiTector App.

Select batches for deletion, then select OK. Or select Delete all batches for all probes to permanently delete all measurement data from the smart device (phone/tablet).


Batch Report Configuration
Customize reports using the Batch Report Configuration to include/exclude notes, images, logo, company/report name, fonts, alignment, image sizes and more.

The Preview Report displays sample batch data (not your actual batch data).


Batch Report
Generate a report summarizing an individual batch or multiple batches. Select desired batch or batches to include in the report and press OK.

An individual report will be generated for each selected batch.
If more than one batch is selected, individual reports will automatically open in your default email app. Viewing a batch report is only possible when a single batch is selected.

Share the report instantly via email, Dropbox or other applications on your device.

Setup Menu

SmartLink Info
Provides information about the currently connected PosiTector SmartLink and PosiTector App version.

SmartLink Lock
Locks the PosiTector SmartLink to a smart device. This prevents other PosiTector SmartLink users within range (10 m / 30 ft) from inadvertently connecting to a SmartLink.

Toggle the SmartLink Lock within the Setup menu to lock the PosiTector SmartLink to a smart device. You will have to unlock it if you want to wirelessly connect to another smart device.

The PosiTector SmartLink is not visible on other smart devices while you are connected (once you have selected the PosiTector SmartLink from the Search screen).

Restores the PosiTector App back to its default settings. All batches, stored measurements, images, notes and calibration adjustments for all probes are permanently erased. Batch report configurations are returned to default settings. All modes (Memory, Statistics, Auto Sync, etc) are turned OFF.


PosiTector SmartLink not displaying on search screen.
Ensure PosiTector SmartLink is powered-up and LED is blinking blue.
Refresh the search using the arrow icon in the upper left of the display.
Verify Bluetooth is ON is smart device settings.

Camera does not function when attempting to add photo
Verify adequate privacy permissions are set for the PosiTector App.

Additional Resources



This manual is copyrighted with all rights reserved and may not be reproduced or transmitted, in whole or part, by any means, without written permission from DeFelsko Corporation.

DeFelsko and PosiTector are trademarks of DeFelsko Corporation registered in the U.S. and in other countries. Other brand or product names are trademarks or registered trademarks of their respective holders.

Every effort has been made to ensure that the information in this manual is accurate. DeFelsko is not responsible for printing or clerical errors.

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

© 2023 DeFelsko Corporation. ALL RIGHTS RESERVED.