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The Spec5 MiniTrekker MKII https://specfive.com/products/spec5-minitrekker-mkii » is a compact GPS-enabled LoRa mesh communicator built for reliable off-grid messaging, location sharing, and emergency communication. Available in ESP32-S3 and nRF52 editions, it features an upgraded external antenna, USB-C charging, rugged PETG construction, and support for Meshtastic, MeshCore, and ATAK-compatible firmware.
ESP32-S3: Best for Wi-Fi, MQTT, and custom integrations.
nRF52: Best for extended battery life and off-grid reliability.
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