You can buy the KADDZ GPS cat collar from the KADDZ online shop.

A collar with a GPS chip and an implanted chip are not comparable and we recommend that all cat owners get a chip for their cat. The GPS collar allows the owner to find their cat.

Since the chip is located under the skin, it can only be read by persons with special reading devices (e.g. police, vets). This is both the "strength" and the "weakness" of the system. Since the identification can only be performed with a reading device, either the reading device has to be brought to the cat or the cat to the reading device. But unfortunately, the effort involved often proves to be too great an inconvenience for the finder and so a found animal often goes unreported.

It can, therefore, be said that the two systems are not mutually exclusive, but complementary. The chip used brings security but the owner has no means of finding their cat quickly and easily on their own unless they also use the KADDZ GPS cat collar.

Read more about this topic here: Microchip or GPS tracker: how can you find your cat?

KADDZ was specifically developed for outdoor cats to be able to track the positions and whereabouts of the cat. Dog trackers have different requirements, and activity tracking is generally more important than position tracking. We may look into dog trackers at a later stage, but for the time being, we are concentrating on cat trackers.

With the GPS KADDZ cat collar, the position of your cat can be found anywhere where phone reception and a clear path to the GPS satellites are available. Since the data is sent via the GSM network, there are no restrictions on the reach of the KADDZ GPS transmitter. Therefore, KADDZ is also ideal for cats who like to venture further afield. Unlike radio trackers, KADDZ even works across great distances, for instance anywhere in Europe, thanks to its SIM card.

The KADDZ app offers three different data frequencies. The standard setting is for normal use. The collar sends the current location at specific intervals. This is easy on the battery, and the cat is not exposed to permanent radiation.

You can choose how frequently the data refreshes in the cats' settings.

You can choose between four different data frequencies:

• Standard (recommended):
  Transmits data every 15 minutes outside (GPS), at home every 30 minutes (WiFi).
• Battery saver:
  Transmits data every 30 minutes outside (GPS), at home every 60 minutes (WiFi).
• High frequency:
  Transmits data every 5 minutes outside (GPS), at home every 15 minutes (WiFi).
• Walk mode:
  Transmits every minute.

ATTENTION: the higher the frequency, the shorter the battery life!

In the home zone, the GPS signal is not detected because the cat is within the WiFi area of its home. The collar checks every few minutes to see if the home WiFi can still be received, or if the cat is flagged as "outside".

The KADDZ collar was developed for outdoor cats and is water resistant: The collar is protected against rain, snow and dirt (IP67 protection).

You can buy the KADDZ GPS cat collar from the KADDZ online shop.

To use the KADDZ GPS cat collar, you need a valid KADDZ subscription; WiFi coverage at home; and a smartphone/tablet (iOS or Android).

• An active subscription is required to use the cat collar.

You need an Apple or Android smartphone for the installation and use of the free KADDZ app.

Install the app on your smartphone

• Go to the iTunes app store or Google Play and enter “KADDZ" into the search box and click "Search". Then install the KADDZ app on your smartphone.
• Wireless coverage at your home is needed, the signal range of the wireless network is called ‘home zone’. If your cat leaves the home zone wearing the KADDZ collar, you will receive a notification on your KADDZ smartphone app. This ‘’virtual fence’’ is especially helpful for indoor use and saves the battery.

In "Battery Saver" mode, the battery of the GPS KADDZ cat collar lasts up to 4 days. However, in general the battery run-time depends on the reception quality, the field of application and the selected mode. The collar comes with two batteries so that you can charge one battery while the other is being used.

The collar can be adjusted to a neck circumference of about 25 centimeters, the smallest recommended neck circumference is 23 cm. The collar does not need to hug the neck snugly – a space of two finger-widths can lie between the neck and the collar. Because the collar is relatively stiff, it cannot be deformed and the risk of the cat slipping it over its shoulder or head, is practically non-existent.

Weighing 57 grams, KADDZ is ideal for cats weighing 3.5 kg or more, less for smaller cats with a slender neck. Most cats quickly adjust to their new collar.

The KADDZ GPS collar has passed tests for safety, radiation, electromagnetic compatibility and relating to chemical substances and materials, as well as for functioning in extreme temperatures, moisture and extreme mechanical stress and was awarded the CE grading.

Compliance with EU regulations

Suchmich Ltd. hereby declares that KADDZ is in compliance with the essential requirements and the other relevant provisions of Directive 1999/5/CE.

Declaration of Conformity

The GPS receiver only receives signals transmitted from the satellites. Our bodies constantly encounter these signals regardless of whether we carry a receiver or not. Additional radiation is not produced by the GPS receiver. The GPS cat collar only emits a signal when it transmits data via the GSM mobile network. In normal mode, however, the collar sends data, depending on the selected profile, only once every 5-20 minutes for 1-2 seconds. During the remaining time, no data is received and the collar is in ready, or stand-by mode. Although it receives continuous control signals from the nearest base station, it only sends a short signal every few minutes.

The radiation itself is minimal, primarily because we rarely transmit data. Furthermore, we have tested the collar and everything conforms with the CE directives, which are quite strict. But to qualify, we must say that the measurements were with regard to human compatibility. There are no rules regarding the limits for cats.

The magnetic safety clasp helps prevent serious accidents. Unlike other cat collars, the KADDZ safety clasp takes into account the fact that cats are free-spirited animals and so always have the potential of getting stuck, or hurt somewhere on their adventures. Whether or not the safety clasp opens at the right moment depends on the weight of the cat, as well as on the direction of the pulling force.

If your cat gets stuck, it can open the clasp without difficulty using its own body weight. And since you can always locate the collar, you should be able to find it again easily – provided the battery is not empty. To achieve the optimal amount of safety, the collar should be adjusted so that a finger’s width lies between the throat of the cat and the collar.

We deliberately chose a design that allows an easy escape. Our main focus during development was that the collar will always open easily so that your cat is not exposed to any danger. We know that this may sometimes conflict with the objective of knowing at all times where your cat is, but your cat's well-being is our top priority.

The solutions you are referring to (SMS on request) make use of a question-answer process. This is very easy to understand, but it excludes a number of applications. The operators do not have their own infrastructure. We not only transmit the GPS position of the collar to the server, but a variety of other useful data, as well. Here are a few examples:

• Information on the battery level is sent with each data transmission and, whenever the battery charge reaches a certain level (e.g. less than 40%), the owner gets a message on their mobile phone telling them to change the battery at the earliest opportunity.
• We save all data pertaining to your cat movements and can then show a map with your cat most frequent locations.
• We store all the data from the accelerometer and can put together a profile of your cat activities, over time.
• We notice, for example, if the collar has not sent GPS data for several hours. This indicates that your cat is in a building. We also know the last position which was sent before the collar lost GPS reception. This is valuable information if a search is needed.
• After collecting a certain number of positions (e.g. 100), we automatically define the zone in which your cat typically moves. This zone is continuously refined. If your cat strays considerably from this zone, we can automatically trigger an alarm.

If the GPS collar does not regularly send data, but rather only when you ask the app. to do so, the operations mentioned are not possible. This means, for instance, that no statistics are available during the idle time; no alarms for particular situations during the idle time, etc.

We decided to develop a comprehensive and thorough solution that can give the GPS owner early notification in many situations. But for the regular transmission of data over the mobile network, a SIM card and an agreement with a telecom provider are necessary and we have already integrated a SIM card into the collar. To avoid making all of our customers sign a mobile phone contract, we have made an all-inclusive contract and merged the costs for our customers into one fixed monthly subscription fee, with no binding contract.

No, you don’t. Each KADDZ GPS cat collar already has a SIM card installed. All you need to use the cat collar is a data subscription. There is no activation fee or hidden charges – all mobile phone costs are included in the subscription. There is also no minimum contract term or notice. You can pause or terminate the subscription at any time.

The collar uses GPS satellites to determine the position and achieves an accuracy of less than 10 meters (accuracy of 7.8 meters in 95% of all measurements). The accuracy depends on the quality of the GPS signal at the time when your cat is, for instance, in a bush or standing beside a tree in the forest. Then the path to the GPS satellites is not perfect and therefore positioning is less accurate.

The official US government GPS website or Openstreetmap.org provide further information on the accuracy of GPS.

The whereabouts of your cat can be seen on the KADDZ map. However, the GPS position fixes are not perfect and it can sometimes happen that your cat is not shown at its exact location. This is rare, but can happen nevertheless. Before it transmits data again, the collar will recheck its GPS position and self-correct any mistake.

Every KADDZ collar is uniquely identifiable thanks to the SIM card. Furthermore, the collar is useless without the registration code which comes with the collar. The registration code can only be used once, so a third person is not able to register the collar again with the same code.

The KADDZ app is available for smartphones (iOS, Android), tablets, laptops, and computers. The KADDZ app delivers all location-related information of your cat to your device.

How to install the KADDZ app

Click on one of the following icons below. Download the KADDZ app and then install the app on your device.

To add the progressive web app (PWA) to the home screen of your smartphone, tablet, laptop, or computer, please follow these instructions:

The KADDZ app works on an iPad or an Android tablet. The KADDZ app requires its own location for the search mode and therefore a tablet containing a GSM module.

You can either install the iOS app on the iPad, or open the progressive web app (PWA) in a browser and install it on your home screen. The web app works on all mobile (smartphone, tablet, laptop) and stationary (PC) devices, be it Apple or Android.

You can find instructions on how to install the progressive web app (PWA) on your home screen below:

Yes, there is a web app (PWA) for the KADDZ collar:

The web app works the same as the smartphone app. You can either open the web app in a browser (Safari for iPhone and iPad, or Google Chrome for Android smartphones, tablets, and PC) and install it on your home screen. The web app works on all mobile (smartphone, tablet, laptop) and stationary (PC) devices.

You can find instructions for installing the app on your home screen below:

The KADDZ app offers three different data frequencies. The standard setting is for normal use. The collar sends the current location at specific intervals. This is easy on the battery, and the cat is not exposed to permanent radiation.

You can choose how frequently the data refreshes in the cats' settings.

You can choose between four different data frequencies:

• Standard (recommended):
  Transmits data every 15 minutes outside (GPS), at home every 30 minutes (WiFi).
• Battery saver:
  Transmits data every 30 minutes outside (GPS), at home every 60 minutes (WiFi).
• High frequency:
  Transmits data every 5 minutes outside (GPS), at home every 15 minutes (WiFi).
• Walk mode:
  Transmits every minute.

ATTENTION: the higher the frequency, the shorter the battery life!

In the home zone, the GPS signal is not detected because the cat is within the WiFi area of its home. The collar checks every few minutes to see if the home WiFi can still be received, or if the cat is flagged as "outside".

If your cat is missing, you can activate the search function. In search mode, the collar sends live data and you can track your cat on the KADDZ app. You will see where and how far away from you your cat currently is and the light and sound signal will help find your cat easier. If your cat happens to be in a location with no GPS or WiFi reception, you will see the last location from which the collar sent an update on the app. Then search this area for your cat – in basements, garages, attics, or other locations where reception is not available.

As a rule of thumb: The more data you send, the shorter the life of the battery, and the more radiation is emitted by the collar (like your mobile phone if you send an SMS). Therefore, we recommend only turning on search mode when necessary.

Read more about tips for the search function.

You can identify and monitor an unlimited number of cats at the same time with the same KADDZ app. You can see the cats on the map and each cat has its own profile page, where you will see when the collar last sent data. In addition, you will receive the latest news for each cat (configurable), for example if it entered or left the house, or alternatively if the battery needs to be changed. However, search mode can only be activated for one cat at a time since it makes no sense to simultaneously search for several cats that are sometimes in different locations. All this comes with a single user profile, without the need to login and logout.

"My cat is sitting next to me but is shown as being outside on the KADDZ app. Why?"

There can be two reasons for this:

1. In normal mode, the collar only transmits data every 15 minutes (to conserve battery power and not expose the cat to excessive radiation). If your cat just came home, then it may be the case that the collar has since then not sent any new information. Please wait for the next data transmission.
2. If the home zone is not set up or the wifi network at home cannot be received well everywhere, then the collar is dependent on the GPS position. However, the GPS signal needs a clear path to the sky and when the collar is in a building where there is no clear line of sight to the GPS satellites, then it tries to get a position, which, if available, might not be very accurate. For cars on a road, a navigation system can be connected to a road map, but since our cats don't only move on established roads, we cannot adjust the GPS signal accordingly.

The solutions you are referring to (SMS on request) make use of a question-answer process. This is very easy to understand, but it excludes a number of applications. The operators do not have their own infrastructure. We not only transmit the GPS position of the collar to the server, but a variety of other useful data, as well. Here are a few examples:

• Information on the battery level is sent with each data transmission and, whenever the battery charge reaches a certain level (e.g. less than 40%), the owner gets a message on their mobile phone telling them to change the battery at the earliest opportunity.
• We save all data pertaining to your cat movements and can then show a map with your cat most frequent locations.
• We store all the data from the accelerometer and can put together a profile of your cat activities, over time.
• We notice, for example, if the collar has not sent GPS data for several hours. This indicates that your cat is in a building. We also know the last position which was sent before the collar lost GPS reception. This is valuable information if a search is needed.
• After collecting a certain number of positions (e.g. 100), we automatically define the zone in which your cat typically moves. This zone is continuously refined. If your cat strays considerably from this zone, we can automatically trigger an alarm.

If the GPS collar does not regularly send data, but rather only when you ask the app. to do so, the operations mentioned are not possible. This means, for instance, that no statistics are available during the idle time; no alarms for particular situations during the idle time, etc.

We decided to develop a comprehensive and thorough solution that can give the GPS owner early notification in many situations. But for the regular transmission of data over the mobile network, a SIM card and an agreement with a telecom provider are necessary and we have already integrated a SIM card into the collar. To avoid making all of our customers sign a mobile phone contract, we have made an all-inclusive contract and merged the costs for our customers into one fixed monthly subscription fee, with no binding contract.

The navigation device only receives the GPS position and doesn't process them; the KADDZ GPS cat collar however transmits the GPS position (as well as other data) repeatedly over the wireless network of our network partner so you as the cat owner know where your cat and the collar are.

In standard mode, the GPS collar sends the last GPS locations and a variety of other activity data to our server every 15 minutes if it's outside. These data are transferred via the mobile network, the same network you use on your smartphone. In order to do this, the KADDZ GPS cat collar has a SIM card installed.

The monthly service fee includes the following data deliverables:

• Data transfer
• Creation of statistics displayed in the app
• Over-the-Air (OTA) software updates
• Technical support

Depending on your needs, you can buy a subscription for 30, 90, 180, or 360 days; the subscription can always be terminated once the purchased days have expired.

You can find the subscription prices on our KADD webshop: KADDZ subscription prices

Read more about why a data subscription is required in our blog entry: Why does the GPS cat collar need a data subscription?

No, you don’t. Each KADDZ GPS cat collar already has a SIM card installed. All you need to use the cat collar is a data subscription. There is no activation fee or hidden charges – all mobile phone costs are included in the subscription. There is also no minimum contract term or notice. You can pause or terminate the subscription at any time.