Datasheet
The datasheet, in full.
The numbers, with nothing dressed up. Compute, radio, power, and I/O for the WQM-1 — the hardware visibility developers and integrators want before they commit.
Compute
ProcessorBCM2710A1 Quad Cortex‑A53
RAM512 MB LPDDR2
StoragemicroSD + SQLite WAL
OSRaspberry Pi OS Lite
Form FactorHAT (65 × 56.5 mm)
Radio
TransceiverSemtech SX1262
Frequency915 MHz (US) / 868 MHz (EU)
Range15 km line-of-sight
ProtocolLoRaWAN 1.0.3 Class A
PayloadCayenne LPP
AntennaSMA 50 Ω / ¼‑wave whip
Power & I/O
Input Voltage9 – 24 V DC
ConnectorJST‑XH 2-pin
Relay10 A @ 250 VAC / 30 VDC
ExpansionI²C · 3.3 V · 4-pin header
EnclosureIP65 rated (optional)
Sensing
Channels6 (pH, TDS, turbidity, ORP, temp, GPS)
ADCADS1115 16-bit · 4‑ch
Sample interval6 minutes (configurable)
CalibrationFactory-calibrated, field-recalibrate
Per-channel ranges, accuracy, probe types, and calibration live on the sensor reference.
See all six channels