Air Beacon clamps to the copper and reads true superheat and subcooling around the clock — any refrigerant, no service ports, nothing let out of the system. It watches the filter against that unit's own clean baseline, and it tells you what's wrong before the customer calls.
PATENT PENDING · WORKS WITH R-410A · R-22 · R-32 · R-454B · R-407C · R-404A
A pressure-temperature chart converts pressure to saturation temperature. With only a line temp, there's nothing to compare against — so "monitors" that skip the physics guess. Meanwhile the numbers techs do watch get fooled:
Low airflow drops superheat and subcooling together. Plenty of healthy systems get refrigerant pulled out of them because of a $12 filter.
Charge, airflow, load, and humidity all move ΔT. It flags that something is off — never what.
Every hookup vents a little charge and takes a tech to the driveway. That's not monitoring — that's a service call.
Factory-calibrated digital probes (±0.5 °C) go on the liquid line, suction line, and — the part that matters — on return bends mid-way through each coil. Six probes, one wire, under an hour.
Refrigerant mid-coil is two-phase — boiling in the evaporator, condensing in the condenser — so the tube temperature there is the saturation temperature. No pressure tap. No P-T chart. No refrigerant dependence.
Every 30 seconds the readings hit your dashboard. Superheat, subcooling, split, filter load, and amp draw — classified against that unit's own targets, with a plain-English verdict.
Suction line minus measured evaporator saturation. The number your gauges give — without them.
Measured condensing temperature minus liquid line. Charge-by-subcooling, continuously.
Supply vs. return, in context — not as a stand-in for the charge.
Pressure drop across the filter, judged against that unit's own clean baseline — not a universal number. One button re-baselines after a filter change.
Non-invasive clamp on the compressor leg. Watch for hard starts and rising draw.
Wi-Fi drops? Readings buffer on the device and backfill with original timestamps when it reconnects.
Low superheat and low subcooling used to mean "airflow… or maybe the compressor." Air Beacon checks the filter's pressure drop and settles it — and when the filter is the problem, it says so plainly, before anyone hooks up and pulls charge from a healthy system.
Replace the filter and recheck. Don't pull refrigerant.
Airflow path clear at the filter. Check evap coil, blower, and compressor.
Nothing to do. That's the point.
Every monitored unit on one screen — live status, trends, and alerts that open and clear themselves as conditions change.
Installs to a phone or iPad from the browser. Big readouts, sunlight-friendly, and a charge diagnostic that works with no signal at all.
Air Beacon started in the attics and side yards of North Alabama, built by a contractor who was tired of finding problems after the callback. Every unit is designed, assembled, and supported in Morgan County, Alabama, USA — by people who pull gauges for a living and wanted to stop needing to.
We're onboarding early-access contractors now. Tell us how many units you service and we'll get you numbers, hardware, and a dashboard login.