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Bringing the Cutting Edge
Into Tech of Everyday Life
Innovative tech products built for the way you live, work, and connect.
From NFC-enabled dog tags and smart utility tags to powerful mobile applications, we design and manufacture technology-driven products that turn everyday objects into intelligent, connected experiences. Built with purpose, precision, and innovation, our solutions bridge the gap between the physical and digital world.
Explore our smart technologies that are transforming livesWhat we're building
- Tracking collarIn developmentTwo radios: one finds them nearby, one reaches you a village away.
- NFC utility tagIn developmentTap-to-read ID for a dog that has already been found.
Two on the bench. It does not stay this short.
What we do
Turning Everyday Products Into Smarter Experiences
Technology should do more than work: it should make life simpler, safer, and more connected.
At Kalkey, we combine thoughtful product design, smart hardware, and intuitive software to create technology solutions that solve real-world problems. So far, we have developed:
- 01An NFC-enabled dog tag that helps reunite a lost pet with its owner
- 02A utility tag that puts critical information one tap away
- 03A mobile app that facilitates smart service integration
We have a great deal of projects in R&D that are being refined as you interact with our website. From concept to manufacturing and digital integration, we focus on creating solutions that are easy to use, and ready for the future.
Tracking collar
A Bluetooth tracker stops at the end of the garden. This one carries a long-range radio as well, so your dog can be a street or a field away and still be found — with no SIM and no reliance on mobile coverage.
What's inside the tag
Six parts. One runs it, one finds the position, one carries the distance, one powers it, and the strap carries them all.
Strap
The collar itself: a hard-wearing leather band that carries the tag at its middle.
Casing
The shell the rest sits in, shaped to sit flat against the strap.
Main board
An ESP32-C3 runs the firmware, drives the radio and decides when to sleep. The cell charges over magnetic pogo pins; the switch cuts it off for storage.
GNSS module
A Quectel L86 reads the satellites and works out where the tag is. The long-range radio then carries that position home.
Long-range radio
An SX1262 at 868 MHz, up to 22 dBm, on its own antenna connector. This is the part that still reaches you a village away.
Battery
A rechargeable lithium cell. The tag sleeps between transmissions, so it draws almost nothing for most of its life.
- Strap
- The collar itself: a hard-wearing leather band that carries the tag at its middle.
- Casing
- The shell the rest sits in, shaped to sit flat against the strap.
- Main board
- An ESP32-C3 runs the firmware, drives the radio and decides when to sleep. The cell charges over magnetic pogo pins; the switch cuts it off for storage.
- GNSS module
- A Quectel L86 reads the satellites and works out where the tag is. The long-range radio then carries that position home.
- Long-range radio
- An SX1262 at 868 MHz, up to 22 dBm, on its own antenna connector. This is the part that still reaches you a village away.
- Battery
- A rechargeable lithium cell. The tag sleeps between transmissions, so it draws almost nothing for most of its life.
Design targets, not measured results. The tag is still on the bench.
Tracking collar
Product details
A tag on your dog's collar with two radios: one for finding them nearby, one that still reaches you when they are much further away.
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Two radios, two ranges
Short range finds your dog around the house. Long range keeps transmitting a village away.
An ordinary Bluetooth tracker stops working at the end of the garden. The long-range radio carries for kilometres by sending very little, very slowly — which is all a position update needs.
Finding them
Distance indication
Very close, nearby, far, or out of range.
You know whether to search the house or start walking the street.
Location history
Everywhere the tag has been heard, with the time.
A dog that goes missing has usually been somewhere first. The trail is the place to start.
What it does not need
No SIM
Nothing to insert, nothing to activate. The tag reaches your home gateway on its own radio.
No mobile signal
It does not depend on phone coverage, so it keeps working where a phone shows no bars.
Asleep by default
The tag wakes to transmit and sleeps between, drawing almost nothing — so a charge lasts far longer than a device that stays awake.
One-time pairing
Set up once with a single button press. After that it connects on its own and can stay on the collar permanently.
Owner-locked
Only the registered owner can send the tag commands. Someone who picks your dog up cannot take the tag over.
Other owners help
If another owner’s tag passes your lost dog, the location comes back to you automatically and privately.
Charging and storage
Magnetic pogo pins snap the charger on, a warning before the battery runs out, and a switch that disconnects the cell for storage.
Specifications
- Long range
- LoRa, 863–870 MHz
- Output power
- Up to 22 dBm
- Short range
- Bluetooth Low Energy
- Processor
- ESP32-C3, RISC-V
- Antenna
- External, routed along the strap
- Charging
- Magnetic pogo pins
- SIM
- None
Weight, battery life, charge time, water resistance and real-world range are not quoted yet. They depend on the finished enclosure and cell, and will be measured rather than estimated.
The app
One app, both tags
Pick a feature and the screen follows. The collar is tracked here; the NFC tag is written here too.
App screens in progress, not final.
The platform
Meet the Technology Helping Us Protect & Care for Our Pets
Built by our team, this AI-assisted mobile platform brings powerful technology into the hands of pet owners, wildlife enthusiasts, veterinarians, ecological workers, researchers, and conservation activists. This app fulfills the dual requirements of pet care and wildlife conservation. Loaded with features and updates, this app is going to become a must-have on every pet owner’s smartphone.
Powerful features built to facilitate the care of your beloved pet
A dedicated space for grooming salons. Sign up as a groomer, set up the salon profile with hours, prices and photos, and build a services menu where every groom carries its own price and duration. Add the whole team, assign each booking to a named groomer, split services by team member, and keep separate slots so two groomers can work at once. Photograph a printed pet service card and OCR reads it, listing the services and their prices in the portal on their own.
Read about itFollow the collar on the map and see how it is doing: where it last reported from, how far your pet has gone, and how much battery is left. Tracking starts on its own once the device wakes, and every past session stays in the list.
Read about itFind a vet with live availability, get routed to an emergency clinic, share health records with the practice, ask for a second opinion, and follow a recovery plan after surgery — all from one place.
Read about itDraw the zones your pet may roam, set the hours they apply, and share them with the rest of the family. Hazards reported by other owners show on the same map, and predictive alerts warn you before a small escape turns into a search.
Read about itVets, groomers, pet shops and sitters around you, with opening hours and what they charge. Useful at home and more useful away from it, when you do not know who to call.
Read about itPick one of 29 EU destinations and see what your pet needs to enter. The app checks the records it already holds — rabies, microchip, the waiting periods — and marks each requirement green, amber or red, with the official rule behind it.
Read about itAn assistant that already knows the pet in front of it: species, breed, age, vaccinations and travel status. Ask what is due next or describe a symptom and get a plain verdict — urgent, monitor or routine. It is not veterinary advice.
Read about itHundesteuer kept per dog: Bundesland, municipality, annual rate and renewal date, with a reminder before it falls due and every dog in the household in one view.
Read about itThe German schedule is built in. Record a dose and the next booster date works itself out, with the product, batch and vet kept beside it — and the same record feeds the travel check and the NFC tag.
Read about it
Reserve early access
You get the tag before it reaches shops, at the founder rate. We write once, when there is something real to show.
No card, no payment. Full contact details.