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GPS Systems

ATS model L20 Solar-Cel Tracker used for wildlife tracking, in ear tag configuration

L20 Solar-Cell Collar Tracker Ear Tag

L20 Solar-Cell Ear Tag Tracker

A 37 gram solar-powered GPS Tracker with low power LTE-M capabilities. Unlimited FREE data access included with every device.


  • 37 grams standard weight. Larger battery configurations available
  • FREE unlimited LTE data access is included with every L20 purchase
  • Online dashboard for data retrieval, viewing, and programming on any web browser
  • Indefinite battery life due to on-board solar charger

Get your animal's location from nearly anywhere LTE-M Cellular signals are available.

The L20 Solar-Cell Ear Tag is a 37-gram Solar GPS Tracker that will provide you with your animal’s GPS lat/long positions. The lightweight design enables global positioning capabilities on smaller animals.

The L20 takes location fix data, and periodically transmits those fixes over the LTE-M network, where the data is stored in the cloud. When the L20 connects to the network, it also obtains data from the cloud and changes any desired settings set by the user.

When you need to collect your data or modify settings for the tracker, use any mobile or desktop browser to navigate to the online dashboard. GPS and sensor data may be downloaded, and trackers may be configured through the website.

The L20 offers very long life since it is continuously trickle charged with the integrated solar panel. You can even redeploy the logger on another animal. The online dashboard gives you complete control over the operation of your GPS device, and allows you to get the maximum number of animal locations over time.


Data collected

Many factors will influence the amount of data collected, namely amount of time in sunlight. Greater time in sunlight will increase the amount of data collected.

Typical life

Varies depending on duration of solar insolation and number of location fixes attempted. Indefinite battery life, battery can last several years.

On-board Memory

Storage for up to 520K fixes between transmits.

Product Configuration and Data Download

Web browser-based dashboard provides complete control of all your L20 devices via your cellphone or other device.


Minimum Battery size: 210mAh Li-ionPO; Trickle charged by integrated solar cell.


LTE-M Cellular


Weight: 37g

Size: 65 x 38 x 16 mm


0°C – 55°C

Ordering Information

Optional power-saving water sensor is available for animals that spend significant time in water.


One year parts and labor on materials and workmanship.

Features and specifications subject to change without notice.

Screen shot of web browser-based dashboard for the L20 Solar-Cell Tracker


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