Illustration, not a product photo.
Elecrow · Tracker card
Elecrow ThinkNode M3 Tracker Card
IP66 card tracker with temperature/humidity sensors; alternative to T1000-E.
Meshtastic: officially supportedMeshCore: supported
From $39.90List price on elecrow.com, checked November 1, 2026
At a glance
Battery
770 mAh
GPS
Yes
Screen
None
Water resistance
IP66
Chip
nRF52840 (low power)
List price
From $39.90
Strengths
- Built-in 770 mAh battery
- GPS built in for sharing your position
- IP66 water and dust rating
- nRF52840 chip, which Meshtastic says uses less power than ESP32 boards
- Runs either Meshtastic or MeshCore
Trade-offs
- No screen
Based on published specs, not hands-on testing.
Specifications
| Type | Tracker card |
|---|---|
| Processor | nRF52840 |
| LoRa radio | LR1110 |
| US 915 MHz version | Yes (US915 variant (Elecrow); Meshtastic lists 915 MHz.) |
| Screen | None |
| Keyboard | No |
| GPS | Yes (ATGM336H-5NR32 GNSS (Meshtastic).) |
| Battery | Built-in 770 mAh |
| Solar input | Not listed |
| Wi-Fi | Wi-Fi scanning only (Elecrow: 'Wi-Fi and Bluetooth only support Wi-Fi scanning and Bluetooth beacons'); Meshtastic index: NO |
| Bluetooth | Bluetooth 5 (LE) |
| Water resistance | IP66 |
| List price | $39.90 (elecrow.com 'As low as'.) |
Checked November 1, 2026. "Not listed" means the maker and official docs don't state it.
Known issues and cautions
From the maker's documentation and the official Meshtastic docs.
- Elecrow: up to 18 hours per charge (vendor claim); magnetic charging.
- LR1110 radio: Meshtastic docs (T1000-E page) state LR1110 radios cannot currently receive from SX127x radios.
Similar devices
- RAK WisMesh Tag Tracker card, $39.00
- Seeed SenseCAP Card Tracker T1000-E Tracker card, $39.90
Sources
- meshtastic.org/docs/hardware/devices/elecrow/thinknode/
- meshtastic.org/docs/hardware/devices/
- elecrow.com/thinknode-m3-meshtastic-tracker-with-gps-wifi-ble-function-for-positioning.html
- meshtastic.org/docs/hardware/devices/seeed-studio/sensecap/card-tracker/
- github.com/meshcore-dev/flasher.meshcore.io/blob/main/config.json
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