Beta enrollment open — the first 12 BlueSignal sites
Raspberry Pi HAT · Open Firmware

Do you know your water?
We’ll tell you what’s in it.

Sensors and algae control for lakes, ponds and wells.
pH, TDS, turbidity and temperature, every 60 seconds.
Built in Austin, TX.Sensors and algae control for lakes, ponds and wells. pH, TDS, turbidity and temperature, every 60 seconds. Built in Austin, TX.

Book a Site Survey — $99.99See it running
Base channels
4
Sample interval
60s
Relay output, NO contact
10A
Optional sealed enclosure
IP65
Problems a level sensor can’t see

Most water problems are silent until they aren’t.

A bad well doesn’t announce itself. A pond turns over at 4am. The softener fails on a Tuesday. You find out after the fish, the plants, the filter.

01

Wells drift.

pH and TDS move for weeks before a monthly test catches it.

02

Ponds crash.

Oxygen sags before dawn; the fish go before you know.

03

Tanks rot.

Cisterns grow biofilm quietly. ORP shows it days ahead of cloudy water.

04

Manual checks lie.

A strip test once a month misses what happens at 3am.

The Device

One board. Four probes.

A single open-firmware mainboard reads pH, TDS, turbidity and temperature — every 60 seconds, in lakes, ponds, wells and treatment systems. ORP, chlorine and conductivity ride the RS485 bus as optional probes.

What It Watches

Four base channels. Plus a digital bus.

pH, TDS, turbidity and temperature read every 60 seconds, geo-stamped by GPS. The RS485 bus and a spare ADC channel take optional probes — ORP, chlorine, EC/salinity, or a level transducer if you want quantity too. Here’s what each one tells you.

A0 · BNC

pH

Acid or base — drifts before the fish do.

Range
0 – 14 pH
Accuracy
±0.02 pH
A1 · BNC

TDS

Dissolved salts, climbing or holding steady.

Range
0 – 1000 ppm
Accuracy
±2% FS
A2 · Analog

Turbidity

Cloudiness — the first sign of a bloom.

Range
0 – 3000 NTU
Method
IR scatter, 850 nm
GPIO · 1-Wire

Temperature

The reference everything else leans on.

Range
−5 – 85 °C
Accuracy
±0.5 °C
UART · NMEA

GPS

Geo-stamps every batch of readings.

Accuracy
2.5 m CEP
Constellation
GPS + GLONASS
Ranges, accuracy, and calibration for every channel
Probe · cloud · phone

From the pond to your pocket.

The unit keeps every reading on its own storage first, so a dropped connection loses nothing. When the link is back, the backlog follows in order.

01

The probes read.

Four channels sampled every 60 seconds. Raw analog from the probes, converted on-board and stored before anything is transmitted.

WQM-1 · on-site
02

The reading leaves the site.

Stored on the unit first, then sent to BlueSignal Cloud over the site’s Wi-Fi. A 915 MHz radio is on the board for sites without a connection; that network path ships when it is live, not before.

Wi-Fi · store-and-forward
03

You get the alert.

The cloud stores it, charts it, and notifies you when a reading crosses a threshold you set. The same data drives the relay.

cloud.bluesignal.xyz
System Overview

It doesn’t just alert. It acts.

A threshold fires an alert — and the 10 A relay closes the loop: dosing, aeration, algae control. Swipe through where it runs.

Residential

Residential

A well shifts with the aquifer and nobody tests it for months. pH and TDS read every 60 seconds — you get a text the moment either moves.

Ponds & Spas

Ponds, Pools & Spas

pH drifts overnight and the sanitizer stops working — that is how a pool goes green. The relay drives the doser; the dashboard texts you before anyone notices.

AWG

Atmospheric Water Generation

Condensate picks up whatever the air and the machine give it. pH, TDS and temperature read on every batch before it goes to storage.

Aquaculture

Aquaculture

Temperature, pH and turbidity in every raceway, every 60 seconds, with the relay on the aerator. Lose one tank of fish and the unit has paid for itself.

Stormwater

Stormwater & Algae Control

A retention pond turns green in a week of heat. Turbidity and pH trend before the bloom, the relay runs the aerator or the doser, and the record is there for the MS4 report.

Also deployed forNutrient banking
Read the full datasheet
Ecosystem

Built with brands you trust.

Runs on
Measures with
Connects to
Built in the open
Built with

All product names, logos and brands are property of their respective owners and are used for identification only. Listing indicates technical compatibility or use, not endorsement, sponsorship or partnership.

Pricing

Hardware and monitoring pricing.

Every site runs the same WQM-1 hardware — we handle the install. Cloud monitoring scales with how you use it.

Hobbyist

Freecloud · one device
+ $99.99 site survey, install quoted per site
  • Live cloud dashboard
  • Email alerts
  • Open firmware, self-host ready

Best forMakers, students, and tinkerers running a single sensor.

Start with Hobbyist

Residential

$5/ mo per device
+ $99.99 site survey, install quoted per site
  • Everything in Hobbyist
  • Up to 5 devices
  • SMS + email alerts

Best forHomeowners — wells, rainwater, a tank or two.

Book a Site Survey
Recommended

Commercial

$10/ mo per device
+ $99.99 site survey, install quoted per site
  • Multi-site dashboard
  • SMS alerts + relay automation
  • Priority support & calibration

Best forAquaculture, municipal stormwater, treatment, integrators.

Book a Site Survey

Running 50+ devices, a regulated program, or need a white-label dashboard? Talk to us.

Installation

Now across the Gulf of America.

One visit covers it: site survey, mounting, probe calibration, network setup, and dashboard config. The installer network runs out of Austin and covers five states across the Gulf of America.

Texas
Louisiana
Mississippi
Alabama
Florida

Tell us about your site.

Pilot, installer network, volume order, or just a question about your water. Tell us what you’re working with.