Mobile Apps / LoggerLink
LoggerLink Mobile Apps for iOS and Android
Mobile Apps
Access your data logger
from anywhere
weather applications supported water applications supported energy applications supported gas flux and turbulence applications supported infrastructure applications supported soil applications supported


Current Version for iOS: 1.7

Current Version for Android: 1.6.8

LoggerLink Mobile Apps are simple yet powerful tools that allow an iOS or Android device to communicate with our CR200X, CR800, CR850, CR1000, CR3000, CR6, or CR300 dataloggers via an IP device (NL115, NL116, NL120, NL121, NL201, NL240, NL241, RavenXTV, RavenXTG, RV50). LoggerLink for Android also supports Bluetooth communication for these same data loggers using an RS-232-Bluetooth adapter. The apps support field maintenance tasks such as viewing and collecting data, setting the clock, and downloading programs.

Note: An Android device will not, by default, connect to an ad hoc network. However, some smartphones and tablets may be configured so that they will work in an ad hoc network. Consult with your wireless provider for information on setting up your device for connection to an ad hoc network. For more information about ad hoc networks, see the Compatibility information on the web page.

LoggerLink mobile apps are free and available through the Apple Store or Google Play.

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Benefits and Features

  • View real-time data
  • Graph collected data
  • Collect data
  • Set variables and toggle ports
  • Check important status information about the health of the data logger
  • Perform field maintenance such as send program, set clock
  • Manage files
  • View current data tables in graphical or tabular format



Communication with Data Logger IP device (NL115, NL116, NL120, NL121, NL201, NL240, NL241, RavenXTV, RavenXTG, RV50) or RS-232-Bluetooth adapter (LoggerLink for Android only)


Current Version 1.7
Requirements Runs on iOS version 8.0 or greater. (Refer to the Compatibility section on the web page for more information about the mobile device and data logger compatibility.)


Current Version 1.6.8
Requirements Runs on Android OS 4.03 or greater. (Refer to the Compatibility section on the web page for more information about the mobile device and data logger compatibility.)


Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.

Data Loggers

Compatible Note
CR1000 (retired)
CR200X (retired)
CR206X (retired)
CR295X (retired)
CR5000 (retired)
CR9000X (retired)

Additional Compatibility Information

Smart Phone, Tablet

iOS-based and Android-based devices are compatible. (See the table.)

Supported Device Required Operating System
iPod Touch iOS 8.0 or later
iPad iOS 8.0 or later
iPhone iOS 8.0 or later
Android tablet Android OS 4.03 or later
Android smart phone Android OS 4.03 or later

Data Logger Considerations

The iOS or Android device communicates with the data logger via an IP device (NL115, NL116, NL120, NL121, NL201, NL240, NL241, RavenXTV, RavenXTG, RV50). LoggerLink for Android also supports Bluetooth communication for the same data loggers using an RS-232-Bluetooth adapter.


The following table illustrates which communication options are appropriate for the two LoggerLink applications (Android and iOS).

Wired Ethernet Wireless Infrastructure Network Wireless Ad Hoc Network Bluetooth 2.0
LoggerLink Android See explanation below
LoggerLink iOS
LoggerLink for Android

LoggerLink for Android can be used to communicate with any of its supported data loggers over IP-based or Bluetooth 2.0 communication. There are some items of note, however, when considering your communication options.  

IP-based communication options include wired Ethernet devices (such as Campbell Scientific’s NL116 and NL121) and devices that use a wireless communication protocol (such as our NL241). Wireless networks can be set up in infrastructure mode where a central router or access point is in place, or in ad hoc mode where there is no central point of access and all devices in the network communicate with each other on a peer-to-peer basis.

If the communications link to the data logger is via a wired Ethernet connection, simply type in the IP address of the data logger to connect. If the communications link is via a wireless network configured in infrastructure mode, the Android device can connect to the network’s Wi-Fi access point or cellular network, which, in turn, provides an IP connection for LoggerLink to use.

However, by default, the ability for an Android device to join an ad hoc network that is initiated by another device is disabled in the Android OS. In this situation, the Android device can be configured as a Wi-Fi hotspot, and the wireless device in the ad hoc network that provides the connection to the data logger can be set up to connect to it. This situation would occur, for example, if an NL241 was used without an external wireless or cellular network. The Android device would be set up as a wireless hotspot, and the NL241 would connect to that hotspot.

LoggerLink for iOS

LoggerLink for iOS supports IP-based communication only (both wired and wireless Ethernet). Ad hoc networks are fully supported by iOS. Support for communication over Bluetooth is not available, because Apple does not allow serial port protocol over Bluetooth 2.0 for commercial use.

FAQs for

Number of FAQs related to LoggerLink: 16

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  1. By default, the graph doesn’t have any data configured. It is necessary to select a data table and the fields to be graphed. The data range for the graph may also need to be modified to accommodate the range of data to be displayed.

  2. LoggerLink stores data logger setup information in a file named logger_settings.sqlite. This file can be accessed through iTunes and File Sharing, and it can be saved to a computer and then copied onto any number of iOS devices.

    1. After the iPhone synchronizes with iTunes, click the iPhone button at the top.
    2. Within the iPhone display, click the Apps button at the top.
    3. Scroll down to the File Sharing section. In the Apps field, click LoggerLink.
    4. All of the files are displayed in the LoggerLink Documents field.
    5. Click a folder or file to select it.
    6. Click the Save to… button.
  3. No. LoggerLink is not compatible with FTP.

  4. LoggerLink connects directly to a single data logger using a TCP/IP connection. In contrast, LoggerNet Mobile Connect connects to a LoggerNet server, and in-turn, can connect to any device in the LoggerNet network regardless of the communication link to the data logger.

  5. LoggerLink supports all TCP connections with Campbell Scientific data loggers. However, some network types are not supported by all devices. For example, ad-hoc networks are supported on iOS devices, but they are not supported on Android devices.

  6. Yes. LoggerLink is designed to communicate with data loggers using IP connections. Typically, if a data logger can be reached by a smartphone, LoggerLink should be able to communicate with it.

  7. No. There are currently no plans to develop a cabled connection to LoggerLink, as there are too many different connection types and certification requirements to pursue cabled connection options.

  8. Files can be transferred to an iPhone from a computer using File Sharing in iTunes.

    Files can also be emailed to an iPhone or accessed through a cloud storage system such as Dropbox. LoggerLink is registered with iOS so that the program file types are handled correctly. Using the Open In feature allows these files to be copied to LoggerLink.