01
Full Electrical Metering
One ATM90E36A IC reads voltage and current per phase plus neutral, active/reactive/apparent power, power factor, and frequency — the complete 3-phase picture from a single chip, no external meter.
02
Energy Accounting (kWh)
Four-quadrant energy: active import/export (kWh), reactive (kvarh), and apparent (kVAh). Billing-ready totals per unit, ideal for genset rental and pay-per-use models.
03
Power Quality & Protection
THD and harmonics (orders 2–42), plus SAG detection, phase loss, reversed phase sequence, and over/under conditions — surfaced as alerts before they damage the load.
04
Remote Cut-off
Disconnect a genset over the air for overdue rentals. Energize-to-block logic is fail-safe: if the board loses power, the paying customer’s genset stays running.
05
Engine-Sensor Expansion
A spare I/O bus extends the board to battery voltage, fuel level, MEMS vibration, oil temperature/pressure, and RPM — the bridge from genset to wider heavy-equipment monitoring.
06
Wi-Fi Cloud + OTA
ESP32-S3 streams telemetry to the cloud over Wi-Fi and accepts over-the-air firmware updates. Programmable over USB-C — even with no battery connected.
07
3 kV Galvanic Isolation
The mains-referenced metering side and the battery-referenced logic side are fully isolated through a certified digital barrier and isolated DC-DC — safe by design.
08
Universal 12 V / 24 V
A single PCB runs on both 12 V and 24 V genset batteries — the mode is selected by fuse position, no separate SKU, no jumper guesswork.
09
Non-Invasive Current Sensing
A 333 mV Rogowski coil clamps onto the existing cable — no panel rewiring, anti-saturation, and one design covers the full 100–200 kVA range via software calibration.