What can a Lakelytics station measure?

Every station measures dissolved oxygen, oxygen saturation and water temperature from one optical probe. Optional add-ons on the same station read pH, and conductivity with total dissolved solids and salinity. Further sensors on the same bus add turbidity, blue-green algae, chlorophyll, ammonia-nitrogen, nitrate/nitrite and ORP — matched to what you need to monitor.

Which reading actually prevents fish kills?

Dissolved oxygen, watched overnight. Oxygen falls through the night and bottoms out around dawn; Lakelytics tracks it minute by minute and alerts you before it reaches a dangerous level — the others add context and early warning of the conditions that cause a crash.

Do the sensors need much maintenance?

Very little. The dissolved-oxygen probe is optical, so there are no electrolytes to top up — just an occasional wipe-down, which the app reminds you to do and lets you log. pH benefits from an occasional recalibration.

What we measure

Every reading, and why it matters

Seven live water-quality metrics from three low-maintenance sensors — here’s exactly what each one tells you, the healthy range, and how it helps protect your fish and your lake.

The full picture

Three sensors. Seven readings. One clear story.

A fully-equipped water-quality station reads all of the below, every few minutes, around the clock.

🫧

8.4 mg/L

Dissolved oxygen

🔵

95 %

Oxygen saturation

🌡️

17.2 °C

Water temperature

⚗️

7.4

⚡

520 µS/cm

Conductivity (EC)

🧊

260 ppm

Total dissolved solids

🧂

0.23 ppt

Salinity

On every station

Optical dissolved-oxygen probe

Included as standard on every station. One low-maintenance optical probe, three readings.

Reads 3 metrics

🫧

Dissolved oxygen

mg/L

8.4mg/L

typical reading

0mg/L healthy 7–11 mg/L 14mg/L

The amount of oxygen actually dissolved in the water — the single most important number for keeping fish alive. It swings through the day: highest in the afternoon, lowest just before dawn.

🐟

Why it matters: Below ~6 mg/L fish get stressed; below ~4 mg/L a summer fish kill becomes a real risk. Watching the overnight low is the whole game — it’s what Lakelytics is built to catch and warn you about before it’s too late.

🔵

Oxygen saturation

95%

typical reading

0% healthy 80–110 % 120%

How full the water is relative to the most oxygen it could physically hold at its current temperature. It puts the raw mg/L reading in context — because warm water simply can’t hold as much.

🐟

Why it matters: Saturation exposes trouble the raw number can hide: a “fine looking” 7 mg/L on a hot afternoon may already be under-saturated, meaning the water is working hard and will fall further overnight.

🌡️

Water temperature

°C

17.2°C

typical reading

0°C healthy 4–22 °C 34°C

The temperature of the water at the probe, measured on the same optical head. It drives almost everything else — oxygen capacity, fish metabolism and how fast algae grow.

🐟

Why it matters: Warm water holds less oxygen and makes fish burn more of it — the exact combination behind summer crashes. Above ~25 °C carp are under real heat stress, so a rising temperature is your early cue to expect low nights.

Add-on

pH probe

Adds water chemistry with automatic temperature compensation.

Reads 1 metric

⚗️

pH

7.4

typical reading

4 healthy 6.5–9.0 11

How acidic or alkaline the water is, from 0 to 14. Most healthy coarse fisheries sit comfortably between 6.5 and 9, ideally around 7–8.5, and drift a little between day and night.

🐟

Why it matters: A sudden swing or a reading outside that window points to a problem — an algal bloom, pollution or run-off — and extreme pH is directly harmful to fish and can make ammonia far more toxic. It’s an early warning for water going wrong.

Add-on

Conductivity probe

Dissolved-solids and salinity on the same probe bus.

Reads 3 metrics

⚡

Conductivity (EC)

µS/cm

520µS/cm

typical reading

0µS/cm healthy 150–800 µS/cm 1200µS/cm

How well the water carries an electrical current — a direct measure of the dissolved minerals and salts in it. Every lake has its own normal baseline set by its geology and inflows.

🐟

Why it matters: It’s the change that matters. A sudden jump can flag run-off, a pollution event, road salt or a leak; a steady drift tells a longer story about your water. Knowing your baseline means you spot the anomaly fast.

🧊

Total dissolved solids

ppm

260ppm

typical reading

0ppm healthy 100–450 ppm 800ppm

The estimated weight of everything dissolved in the water — minerals, salts, nutrients — derived from conductivity. A plain-English companion to EC for tracking overall water “load”.

🐟

Why it matters: Climbing TDS often shadows nutrient enrichment and heavy algae, which is exactly what fuels big overnight oxygen swings. It’s a useful long-term health trend for the whole water body.

🧂

Salinity

ppt

0.23ppt

typical reading

0ppt healthy ≈ 0 ppt (fresh) 1ppt

The salt content of the water in parts per thousand. A freshwater lake should read close to zero and stay there, year in, year out.

🐟

Why it matters: Any meaningful, sustained rise in a freshwater lake is a red flag — saline run-off, a discharge or intrusion — well before it would ever be visible. On the same probe, it’s essentially free peace of mind.

The full range

More parameters, on the same platform

Because our probes speak the same standard sensor bus, a single Lakelytics station can carry a wide range of water-quality sensors — matched to exactly what you need to protect. Beyond oxygen and chemistry, we can measure:

🌫️ NTU

Turbidity

How cloudy the water is, from gin-clear to heavily coloured — a fast, intuitive read on runoff, sediment, bank disturbance or a pollution event.

🦠 cells/mL

Blue-green algae

Fluorescence detection of blue-green algae (cyanobacteria) — the toxic blooms that turn water green and endanger fish, dogs and people. Our standout capability, "BloomGuard".

🌿 µg/L

Chlorophyll-a

A measure of algal biomass and productivity — pairs with blue-green algae for a fuller picture of bloom risk.

🧪 mg/L

Ammonia-nitrogen

Dissolved ammonia, toxic to fish and more so at higher pH and temperature — vital for heavily stocked waters, hatcheries and aquaculture.

⚗️ mg/L

Nitrate, nitrite & ions

Nitrate, nitrite, ammonium and other ion sensing for a complete nutrient picture — the backbone of intensive aquaculture water management.

🔋 mV

ORP (redox)

Oxidation-reduction potential — an overall gauge of the water's oxidising capacity, useful for treatment, disinfection and pond-health monitoring.

📄

Take it with you

The one-page water-quality datasheet

Every reading, sensor, healthy range and why it matters — as a branded PDF to print, share with your club or committee, or keep on file.

⬇ Download PDF

Why it all matters

Every reading points at the same thing: the overnight oxygen low

Warm water, an algae bloom, a still and cloudy night — the other metrics see the danger building. Then oxygen falls through the small hours and bottoms out at dawn. Lakelytics watches it the whole way down.

A typical summer oxygen curve — the danger is at dawn, hours after anyone’s left the bank

See it in the app Open the portal

Every reading, and why it matters

Three sensors. Seven readings. One clear story.

Optical dissolved-oxygen probe

Dissolved oxygen

Oxygen saturation

Water temperature

pH probe

pH

Conductivity probe

Conductivity (EC)

Total dissolved solids

Salinity

More parameters, on the same platform

Turbidity

Blue-green algae

Chlorophyll-a

Ammonia-nitrogen

Nitrate, nitrite & ions

ORP (redox)

The one-page water-quality datasheet

Every reading points at the same thing: the overnight oxygen low

Know your water — before it turns