World's smallest telemetry logger with GPS, radio download and solar panel. Total weight is only 3.5g!

High quality data for your project

This logger stores records with following content:

  1. Geographical coordinates (GPS)
  2. Speed (GPS)
  3. Altitude (GPS)

You get high precision data from GPS, not like from legacy VHF telemetry.

Great radio link known from our other products

This is the same leading technology as in our other products. When using direct radio communication, data from tag is firstly downloaded to the base station. Then you can download data to your PC at any convenient moment (using USB cable):

Base station may operate autonomously even for months, being e.g. near the nest / at the bird colony. Base station is light device so it may be also carried by the operator - and this is more popular use case.

Downloading range in line-of-sight (no obstacles between base station and logger) : 2 kilometers (1.2 mile)
Please note that this is our standard testing range and all units are tested on this range. We have reports of successful downloads from greater distances.

Multiple features inspired by customers

Around 80% of our development is driven by customers’ suggestions. Important examples of customer-inspired features in this logger are:
  • Geofencing – you can set up to 2 zones with custom registration intervals. This is very helpful when you want to perform higher frequency GPS registration in certain areas. For example, conservationists use it to get better picture of animal behavior in proximity of human habitats. Of course there are many other possible applications: you can set more frequent registration in areas of special interest (e.g. water crossing, some migration episodes etc.) or you can use this feature to capture less positions in some areas if you are not interested in them.
  • Custom registration intervals in selected hours – Imagine that your species sleeps at night (quite common scenario) and is active during the day. With this feature you can set for example to register only 1 position per hour during the night (to be sure that animal stayed at the same place during night) and 5-minute interval during the day (to normally register daily activity). This feature is also very useful if you know that your animal is highly active during selected hours (e.g. 2 hours at dawn and 2 hours at dusk). If that’s the case, you can set higher registration interval during those periods

Ultra compact size

Available in different colors

Loggers come in white color by default. For many species that's perfectly OK, but in some cases it may make animal more visible for predators. For such situations, you can choose different color: e.g. olive green or brown.

There are many colors available, so please contact us if you have special requirements in that matter.


Device Net price Remarks
NanoRadioTag-3 1000 EUR Logger described on this page.
Milsar Base Station 1000 EUR This is the same base station as for RadioTag-14 and GsmRadioTags, because these systems are fully compatible. If you have existing base station bought for RadioTag-14, you can use it with these loggers.

Note: In these prices, you get all accessories needed for working with your devices. Some vendors would charge you a lot for accessories, such as cables & antennas for the base station etc. In our pricing policy, above prices are all what you are going to pay for your devices.

Please contact us

Contact us by sending an e-mail to This email address is being protected from spambots. You need JavaScript enabled to view it. or calling +48 883 388 698.

Our shipping address can be found on our contact page.

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