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Environment & Weather

OGLAS environment sensors — on-site weather, temperature anywhere, frost warning, air quality, and the generic analog node that underpins them all. Measure the conditions your site runs in.

The conditions a site runs in drive most of the decisions on it — when to irrigate, when to protect against frost, whether a shed is safe to enter. These sensors measure the environment, indoors and out.

  • Analog — the generic 0–3.3 V node behind many of these: soil, light, level, temperature, anything with a voltage.
  • Weather — on-site temperature, humidity, pressure, rain, and wind.
  • Temperature — point temperature anywhere: freezer, water tank, hot water, kiln, engine, room.
  • Frost — ground and air frost warning, tied to frost-protection switching.
  • Air Quality — CO₂, methane, and more, indoor or outdoor.

1 - Analog

Generic analog sensor node — read anything 0–3.3 V, deep-sleep between samples.

The OGLAS analog node is the workhorse. It’s a battery-powered wireless device that wakes up, reads an analog input, sends the value, and goes back to sleep. Same firmware drives sensors for soil moisture, light, voltage, level — anything that comes out as a 0–3.3 V signal.

What it does

On each wake cycle:

  1. Reads an analog input (12-bit ADC, 0–3.3 V).
  2. Sends the reading to your hub.
  3. Waits for confirmation.
  4. If no confirmation, sleeps briefly and retries so the hub knows the reading is stale.
  5. Once confirmed (or after retry limit) deep-sleeps for the configured interval.

The reading counter and last value survive deep sleep so a power-cycle doesn’t lose history.

Hardware

Two hardware variants are available — pick whichever suits the install:

  • A readily-available variant with USB-C and integrated radio. Good all-rounder.
  • An ultra-low-power variant with lower idle current, better suited to long-term battery installs.

Both run from a single LiPo cell with deep-sleep current low enough for season-long deployments — see Off-grid power.

Configuration

Configurable reporting interval, node name, analog pin mapping, and reading key — set at build time to match your install.

Pairs well with

  • Tank level — for many tank installs the analog node is the tank level sensor (with a level transducer feeding the ADC).
  • LoRa Hub — picks up the readings and logs them.

Building this into a larger site? That’s exactly what we do — start a custom build or email us.

2 - Weather

An on-site weather station — temperature, humidity, pressure, rain, and wind — reporting to your own hub. Your conditions, not the nearest town’s.

The forecast for the nearest town is not the weather in your back paddock. The OGLAS Weather sensor is a station that reports your conditions to your own hub — and feeds the rules that act on them.

What it does

  • Temperature & humidity — ambient conditions, logged continuously.
  • Barometric pressure — the leading indicator of a change coming through.
  • Rainfall — a tipping-bucket gauge totalising what actually fell on you.
  • Wind speed & direction — for spraying windows, fire days, and structure-load awareness.

All of it lands in the same dataset as your other sensors, so “it rained 12 mm” sits next to “the tank rose 40 mm” and “the soil came up to field capacity”.

Hardware

Standard weather instruments (tipping bucket, anemometer, wind vane, temp/humidity/ pressure module) on an OGLAS node, battery + solar, sited in the open — see Off-grid power.

Pairs well with

  • Frost — pressure, humidity, and temperature trends feed a frost warning.
  • Soil Moisture and Smart Switch — “dry soil and no rain forecast” before irrigating.
  • Water Pump — hold off filling if rain is coming.

Building this into a larger site? That’s exactly what we do — start a custom build or email us.

3 - Temperature

Point temperature anywhere it matters — freezer, water tank, hot water, kiln, engine, cool room — with threshold alerts the moment it drifts.

Not every temperature is the weather. The OGLAS Temperature sensor watches a specific point — and tells you the moment it leaves the range it’s supposed to be in.

What it does

  • Reads one or more probes — a single point or several on one node.
  • Alerts on thresholds — too warm, too cold, or out of a band, straight to the bell or your phone.
  • Logs the trend — so you can see the freezer creeping up for a day before it actually failed.

Where it goes

  • Freezer & cool room — the classic: catch a failure before the contents spoil.
  • Water tank & hot water — frozen-pipe risk at one end, legionella-safe storage at the other.
  • Kiln, oven, smoker — confirm a firing or curing schedule held.
  • Engine & bearing — an overheating bearing or engine as an early fault signal.
  • Glasshouse & shed — keep growing or stored goods in range.

Hardware

Thermistor, RTD, thermocouple, or a digital probe (DS18B20 and friends) to suit the range, on an OGLAS analog-class node. Mains or battery depending on the site.

Pairs well with

  • Frost — the outdoor, agronomic cousin of this sensor.
  • Smart Switch — turn on a heater, fan, or fridge on temperature.
  • Bell — a freezer-fail alarm you’ll actually hear.

Building this into a larger site? That’s exactly what we do — start a custom build or email us.

4 - Frost

Ground and air frost warning that fires before the damage is done — and can trigger frost-protection fans or sprinklers automatically.

A frost you find out about at dawn is a frost you’ve already worn. The OGLAS Frost sensor watches the conditions that lead to one and warns you — and your gear — in time to act.

What it does

  • Tracks air and ground temperature — at canopy and at ground level, where frost actually settles.
  • Reads dew point — temperature plus humidity tells you how close you are to forming frost, not just how cold it is.
  • Warns early — an alert as conditions approach the threshold, not once the damage is done.
  • Triggers protection — fire frost fans, an under-tree sprinkler, or a heater via a Smart Switch, automatically, at 2 am, without you standing in the cold.

Hardware

Paired temperature probes (air and ground) and a humidity sensor on an OGLAS node, sited in the block you’re protecting. Battery + solar — see Off-grid power.

Pairs well with

  • Weather — pressure and wind round out the frost picture.
  • Smart Switch — the actuator for frost fans and sprinklers.
  • Temperature — for the indoor, point-temperature jobs.

Building this into a larger site? That’s exactly what we do — start a custom build or email us.

5 - Air Quality

CO₂, methane, and particulates — indoor or outdoor — for sheds, glasshouses, confined spaces, and anywhere a build-up is a problem.

The OGLAS Air Quality sensor watches what’s in the air where people, animals, or plants are — and raises the alarm when a level climbs into a range that matters.

What it does

  • CO₂ — ventilation and comfort indoors; growth in a glasshouse; build-up in a confined space.
  • Methane (CH₄) — biogas, manure pits, and stores; this one also overlaps Safety (it’s combustible).
  • Particulates (PM2.5 / PM10) — dust, smoke haze, and air quality on fire-season days.
  • Temperature & humidity — the context every air reading needs.

Levels log to your hub with alerts on threshold, and can drive ventilation directly.

Hardware

NDIR (CO₂), catalytic or IR (methane), and optical (particulate) sensing on an OGLAS node, indoor or weatherproofed for outdoor. Mains or battery to suit.

Pairs well with

  • Smoke & Gas — the safety-critical sibling for combustible and toxic gases.
  • Smart Switch — run an extractor fan when CO₂ or methane climbs.
  • Weather — particulate readings make most sense against wind and conditions.

Building this into a larger site? That’s exactly what we do — start a custom build or email us.