# NEP-LINK BLE — NEP-5000 turbidity sensor app

> NEP-5000 turbidity sensor app (iPhone/iPad app by Observator Instruments Pty Ltd.)

- Source: https://appshunter.io/ios/app/nep/id6736763192 (this page in markdown: same URL + `.md`)
- Developer: [Observator Instruments Pty Ltd](https://appshunter.io/developer/1773281097)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 16.6 · 23 MB
- Languages: American English
- Released: 2024-11-08
- Data updated: 2026-03-26
- User reviews in markdown: https://appshunter.io/ios/app/nep/id6736763192/reviews.md

## What is NEP?

* Capture Turbidity field measurements and simply log the data onto your iPhone or iPad
* Transfer data from your device to anyone and anywhere in the world. 
* Innovative app to replace handheld display & logging of turbidity, temperature, time, date, location & comments directly on your device.
* The freedom to port data directly to a phone, tablet, or laptop.
* Ensure to the end user, field work efficiencies and efficient way to manage and track data.

NEP-LINK BLE FEATURES:
* Bluetooth LE connection (wireless interface) with the latest NEP-5000-LINK probe.
* Automatic Turbidity and Temperature data logging. 
* Auto Ranging 40-400-5000 NTU.
* Geo-location features.
* Dynamic Graphic interface to access datasets & statistics.
* Custom comment. 
* Pictures capability.
* Easy export to your favorite application (Gmail, Email, Dropbox,…).
* Log files with embedded location, time & date, comments & photos.
* Log file record in Comma Delimited data Sentence.
* Online support access.
* Ergonomic user interface.

MINIMAL REQUIREMENTS
* To be used with Apple iOS 15.6 and above.
* ANALITE Auto-Range Turbidity Sensor
* NEP-5000-LINK Bluetooth LE module

REVISION REQUIREMENTS:
* Highly recommended to export your data records prior updating your application.

NEP-5000-LINK SENSOR FEATURES: 
* Fast and easy to use, wireless logging application for the NEP-5000 family of ANALITE Turbidity sensors. 
* Easy field-deployment.
* Wide range of accessories.
* Monitor battery charge for rechargeable Lithium-Ion battery (up to 5-10 hours operation).
* Ensure connectivity with Bluetooth Module.
* Smart Flashing 3-color indicator on Bluetooth Module.
* Smart long term storage.


## Version history (last 4 releases)

### 0.0.40 — 2025-11-23

Major platform upgrade. 
Improvements to data displays.
Improved data storage.
Multiple photos.
Removes restrictions on device names.
Better navigation.
Fixes for crashes.
Latest in 40 (0.0.40): Fixes to dates/times in exports, handling of navigation when taking photo after ending logging via Back button. Better location detection when first installed.

### 0.0.21 — 2025-08-09

Fixes to display.
Improved data storage when logging, and graph display.
Fix cut-off buttons at bottom of live data display page.
Improved turbidity graph display.
Fixes to display on phone (improved sizes of data boxes and position of Logging button on common phone screens).
Fixes to data exports.

### 0.0.14 — 2025-03-19

Support for latest firmware.

### 0.0.9 — 2024-11-09

No release notes.

## More apps by Observator Instruments Pty Ltd

- [MET-LINK BLE](https://appshunter.io/ios/app/met/id6737450992)

All apps by Observator Instruments Pty Ltd: https://appshunter.io/developer/1773281097

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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 2026-03-26.*