Use case · Heating oil tank owners

Smart Heating Oil Tank Monitoring

Stop checking the dipstick in the rain. StellarGauge gives you live heating oil levels, low-fuel alerts before you run out, and a leak-detection signal when the level drops faster than it should.

The problem

Domestic heating oil runs out at the worst possible moment, usually at 11pm in February. By the time you notice the gauge on the tank, you're paying emergency-delivery rates.

Most off-the-shelf monitors are read-once gadgets — they tell you what the level is when you look. None of them tell you when to look.

How StellarGauge fits

Live tank levels

Sub-minute updates from an ultrasonic sensor. Open the app, see the level — no syncing, no delay, no walk to the tank in the rain.

Low-oil push alerts

Set a threshold (default 20%); a push notification fires when you cross it, with a one-tap reorder option.

Sudden-drop leak alert

If the level drops faster than your typical burn rate, you get an alert — early warning of a leak or a tampered cap before the oil's gone.

On-device calibration

Auto-calibrate from a fresh fill, or tweak with a tape measure. Works for vertical cylindrical, horizontal cylindrical and rectangular tanks.

Burn-rate & reorder

Daily and weekly burn rate, predicted days-to-empty, and a reorder reminder calibrated to your supplier's lead time.

EU-hosted, GDPR-aligned

Tank readings stay on EU infrastructure under Perlicom Systems Ltd. No third-party trackers; no data sales.

Common questions

What sensor does StellarGauge work with?

StellarGauge works with the ultrasonic and pressure-based tank sensors we provide, plus several common third-party sensors with HTTP or LoRaWAN upstream. Check the supported list at the time of purchase.

How is it different from a basic tank gauge?

A basic gauge tells you the level when you look. StellarGauge tells you what to do — alerts before you run out, alerts if the level falls too fast, and a reorder prompt timed to your supplier's lead time.

Do I need wifi at the tank?

No — the sensor is low-power and designed to reach a hub indoors via long-range RF. The hub talks to wifi/4G; the sensor itself doesn't need coverage at the tank.

Will it work in winter?

Yes — the sensor electronics are rated for outdoor temperature ranges and ultrasonic readings are unaffected by cold or condensation up to the rated range.