ThinkNode-M3 Meshtastic GPS WiFi BLE 868 MHz Tracker (Elecrow)

Elecrow's ThinkNode-M3 is the ideal solution for Meshtastic users looking for a standalone, lightweight, and extremely durable tracker. Whether for hiking in areas with no cell service, tracking vehicles, or managing rescue missions, this device combines the power of the nRF52840 chipset with the versatility of the LoRa LR1110 chip to deliver location accuracy of less than 1.5 meters.

Key Features

• Location Versatility: Combines multi-constellation GNSS for outdoor use and Wi-Fi/BLE scanning for indoor positioning.
• Off-network communication: Integrates natively with the Meshtastic mesh network to send locations without a SIM card.
• Enhanced security: Programmable SOS button to send instant distress signals in an emergency.
• IP66-rated durability: Dust- and splash-proof design, ideal for mounting on a vehicle or backpack.
• Simplified maintenance: Firmware updates via simple drag-and-drop in bootloader mode over USB.
• Ultra-lightweight: Weighs only 38.5g, making it virtually unnoticeable when worn or mounted.

Technical Specifications

• Microcontroller: nRF52840
• LoRa chip: Semtech LR1110
• Frequency band: EU 868 MHz (US 915 MHz compatible)
• Transmission power: Up to +22 dBm
• LoRa sensitivity: -140 dBm or higher
• GNSS systems: GPS, GLONASS, Galileo, Beidou
• GNSS sensitivity: -162 dBm (tracking) / -148 dBm (cold start)
• Positioning accuracy: <, 1.5 m (CEP50)
• Sensors: Temperature, humidity, accelerometer (vibrations)
• Battery: 3.7V 770mAh lithium
• Standby power consumption: 25±5 µA
• Dimensions: 64 x 64 x 10 mm
• Materials: High-strength PC + ABS

Compatibility

• Software: Meshtastic app (iOS and Android)
• Firmware: Supports Meshcore and official Meshtastic updates
• Networks: Meshtastic 868 MHz nodes
• Connectivity: Bluetooth 5.0 for smartphone pairing

FAQ

Why choose the ThinkNode-M3 Meshtastic Tracker?

• All-in-One Design: No need for external antennas or additional boxes—everything is built-in for immediate use.
• Superior GNSS Accuracy: The use of multiple satellite constellations ensures a fast and accurate fix even in challenging conditions.
• Optimized Power Consumption: Thanks to its 25µA low-power mode, it conserves battery life during periods of inactivity.
• Elecrow Reliability: Hardware designed by IoT experts, ensuring industrial-grade manufacturing quality and ongoing technical support.