Datasheet
The datasheet, in full.
Most monitors hide the electronics behind a brochure. Here is ours in full: Pi Zero 2W compute, 16-bit ADC, LoRa radio, power, and I/O — every connector, voltage, and tolerance.
Compute
ProcessorBCM2710A1 Quad Cortex‑A53
RAM512 MB LPDDR2
StoragemicroSD + SQLite WAL
OSRaspberry Pi OS Lite
Form FactorHAT (65 × 56.5 mm)
Host BoardsRaspberry Pi Zero 2W · Arduino UNO Q / VENTUNO Q (digital-first)
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
Analog channels6 (pH, TDS, turbidity, temp, GPS + spare)
Digital expansionRS485 Modbus — chlorine, EC/salinity, digital ORP (Honde probes)
ADCADS1115 16-bit · 4‑ch
Sample interval60 s (cloud-configurable 5–3600 s) · 5‑min LoRa uplink
CalibrationFactory-calibrated, field-recalibratable
Per-channel ranges, accuracy, probe types, and calibration live on the sensor reference.
See all channelsInstalling or servicing a unit? The full installer manual — first-boot setup, wiring, probe calibration, troubleshooting — is available digitally, no printed copy needed.
Open the installer manual