1) Opened
The device has only been opened, or the packaging was damaged and therefore repacked into non-original packaging. The product has never been used.
2) Like new*
The product was used as a demo unit in-store, or was exchanged by a customer within a few days. It may not have the original packaging and may have at most a few light scuffs.
3) Lightly used*
The device was used for 5–15 days; there are already visible scratches from claws.
4) Heavily used*
The device was used for 15–40 days; there are very noticeable scratches or tooth marks. It may have been serviced/refurbished.
* We sell only 100% functional products that can be used the same as new. For example, waterproofing and other properties are always preserved. The warranty period for categories 1 and 2 is the same as for new goods; for categories 3 and 4 the warranty period is 12 months. The product can be exchanged or returned within 30 days. They always include complete accessories unless stated otherwise.
Martin System MPS 2 is a GPS collar with the longest signal range on the market – up to 60 km in flat terrain. The MPS Dog 2 GPS for dogs transmits on permitted frequencies (869.5 mHz), so you do not need any licence. A small, compact transmitter with a receiver that is resistant to all the challenges your dog may encounter in the forest while hunting, as well as in the city on a walk. Your dog’s movement can be monitored not only on the transmitter display – where you can see distance, direction and speed – but also in a mobile app that provides a map view. The Martin System MPS Dog GPS collar with training can be expanded to up to 32 dogs by purchasing additional receivers.
Position updates every 8 seconds when the receiver communicates with the transmitter (up to 60 km). When communicating via the SIGFOX network (distance over 60 km), the position is updated every ten minutes.
Collar range
Martin System MPS Dog 2.0 helps you track your dog at a distance of 60 km in real time. Martin System MPS Dog 2.0 is specially designed for use in the most demanding conditions (forest, terrain), making it suitable for professional tracking of dogs while hunting. Using Sigfox antenna technology, it is possible to locate the dog at longer distances – anywhere within range of these antennas – but with an accuracy of 1 km (in the Czech Republic, the antennas cover 91% of the territory).
GPS functions
Martin System MPS Dog 2.0 works on the principle of radio waves that are permitted in Europe, so you do not need any licence. This GPS collar features a highly sensitive GPS sensor.
Battery and charging
The Martin System MPS Dog 2.0 transmitter is equipped with a rechargeable and replaceable Lithium-Ion battery with a capacity of 1900mAh, and the receiver 1250mAh. You can charge both the collar and the transmitter using the dual charger within 2 hours. On a single charge, both the transmitter and receiver can operate for up to several days (3–6 days).
Waterproof 
Martin System MPS Dog 2.0 has a fully waterproof receiver. It is therefore an ideal choice for training dogs in water or in extreme conditions (forest, mud).
Number of dogs 
Martin System MPS Dog 2.0 can be used to track and train multiple dogs at once without losing functionality. By purchasing additional collars, you can easily expand it for training and tracking up to 32 dogs at the same time. On the transmitter, you can then switch between individual dogs using the buttons.
Display 
Martin System MPS Dog 2.0 has a high-quality backlit LCD display, thanks to which you can train and track your dog both during the day and at night. The display shows all indicators – the dog’s distance from you, its movement speed, number of dogs, signal strength and battery charge/discharge indication, etc.
Collar length
Martin System MPS Dog 2.0 has a very strong, high-quality rubberised collar. It does not bother the dog to wear it and it holds well on the neck. The collar length is adjustable from 20 to 55 cm.
Weight and dimensions
The receiver of this collar is very small and light. It weighs only 54 g.
App
The Android app can be downloaded here

Technical specifications may change without explicit notice. Images are for illustrative purposes only.