The GAT562 Mesh Tracker is an advanced off-grid communication device featuring:
Core Technology
- nRF52840 chipset for Bluetooth 5.0 connectivity
- SX1262 LoRa radio for long-range communication
- 1.3″ TFT display for clear information viewing
- 5020 PWM Buzzer for customized message ringtone
- RGB LED for changeable message indicator
- 2×18650 Battery Shell for replaceable battery
Specifications
- Processor: nRF52840 (Bluetooth 5.0)
- Radio: SX1262 (LoRa)
- Power: 2500mAh Li-ion battery
- Display: 1.3-inch TFT
- Range: 107+ km (terrain dependent)
How to flash firmware
Download Meshtastic Firmware
- Visit https://github.com/mtoolstec/mt-firmware and download the latest released zip
- Unzip the unified zip and find firmware-gat562_mesh_tracker_pro-xxxxxxx.uf2
Flash MeshCore Firmware
- visit https://ssaprus.works/ and follow the web instruction to install WhisperOS via USB
Drag & Drop UF2
- Connect to USB
- Power on with side button pressed
- Drag and drop uf2 firmware to device
Bluetooth OTA
- Power on with Joystick pressed
- Use MTools BLE or nRF52 DFU App to connect device
- One-click to download and start DFU
FAQ on GAT562 30s
Q: Can run Meshtastic or MeshCore at the same time?
A: Nope. The device can only run one kind of Firmware at same time.
Q: Can I switch between Meshtastic or MeshCore Powered firmware with Bluetooth
A: Yes, it’s easy to do it with MTools BLE App and GAT562 30s with Advanced Bootloader.
Q: Why does it 30s Kit keep rebooting when connected to PC via USB?
A: PC provides a very low current on 5V output via USB. The power is not enough to sent 1W signal. Just install 18650 battery or connect to a powerful and stable 5V power will be steady.
Use Cases
- Outdoor adventures
- Emergency communication
- IoT development
- Remote area connectivity
3D Printing Housing
https://makerworld.com/en/models/1971757-gat562-30s-housing#profileId-2120099
Related Guide: GAT562 30s TX Power Settings & Actual Output Power at 869 MHz — Complete Reference
🔧 Browser-Based Firmware Flasher
Flash the latest firmware to your GAT562 30s device directly in Chrome/Edge — no software install required.
- Supports nRF52840-based devices (GAT562 30s series)
- Works in Chrome / Edge desktop (Web Serial API required)
- One-click flash — no drivers, no CLI tools needed














Out of about 25 companion nodes, this is my current EDC. With 2 x 18650 flat top cells, charging often is a thing of the past, the UI is great, & then there’s +28dBm (1W) for that extra punch into the 1/4 wave vertical Antenna.
On a different note – aftersales service from Mtools via WhatsApp is absolutely fantastic & cannot be beaten.
Highly recommended. ⭐️⭐️⭐️⭐️⭐️
This is a very nice board, I ordered 4 of them, I run whisperOS for meshcore companions.
Range is great even with the included stubby antenna, and battery life is incredible, lasting over a week. The on off switch is a nice addition.
Printed a case from their link to stl. But not that much more to get one included. If you would like to see our current MeshCore network in real time look here. https://mdt.meshmapper.net/
I received the item and unfortunately the screen connections came loose in shipment which I wasn’t able to reconnect, but the device still works. The case is pretty robust, and the customer service on whatsapp is awesome. Very fast response, helpful, and offered to send me a new device. Thanks Wilson!