Precision in Every Wave,
Power in Every Measure

Complete power parameters — V, I, kW, kVAr, kVA, PF, Hz, and energy (import/export) all in one 96×96 mm device.

RS485 Modbus RTU — standard communication for direct integration with SCADA, BMS, and energy management systems. Up to 247 meters on one bus.

Energy import and export registers — tracks both consumption and generation, making it suitable for solar PV net-metering installations.

96×96 mm snap-mount — installs in standard panel cutouts without screws. Upgrades from SS1 use the same hole with no modification.

Harmonic analysis to 31st order — measures THD-V and THD-I per phase, and individual harmonic magnitudes for diagnostics and power quality reporting.

Multi-tariff energy registers — separate energy totals for peak, off-peak, and shoulder tariff periods. Simplifies time-of-use billing for commercial and industrial facilities.

Full power quality parameters — V, I, kW, kVAr, kVA, PF, Hz, energy import/export plus harmonics, all logged and available over RS485 Modbus RTU.

Ideal for utility sub-metering — multi-tariff support and harmonic logging make the SS3 suitable for revenue sub-metering in commercial buildings and industrial parks.

IEC 62053-22 Class 0.5S certified — active energy accuracy within ±0.5%. Accepted for utility billing, energy audits, and revenue-grade sub-metering worldwide.

Harmonics to 31st order — full THD-V and THD-I per phase, individual harmonic magnitudes up to the 31st, available on display and over Modbus.

Maximum demand tracking — programmable sliding window (1–60 min) records peak demand. Essential for avoiding utility demand charge penalties.

Rogowski coil compatible — accepts 333 mV Rogowski coil input in addition to standard 1A/5A CT. Live-line installation without circuit shutdown.

Energy pulse output + 2× digital inputs — pulse output (0.001–10 kWh/pulse) for direct PLC counter input; 2 dry-contact inputs for tariff switching or external triggers.

All SS4 capabilities included — IEC 62053-22 Class 0.5S accuracy, harmonics to 31st order, demand tracking, and energy import/export registers carry over unchanged.

Extended digital I/O — additional digital inputs and outputs for relay alarm output, 3-tariff switching, and programmable digital output for PLC integration.

Drop-in upgrade from SS4 — same 96×96 mm cutout, same RS485 Modbus RTU register map. No panel modification or re-wiring of the RS485 bus needed.

BMS and SCADA ready — relay output enables direct alarm integration with building management systems without an external relay module.

Multi-meter aggregation — connects to multiple Sinusoid meters across one or more sites over RS485 or Modbus TCP gateway. Single dashboard for your entire metering network.

Automated billing reports — generate PDF or CSV billing reports per tenant, circuit, or cost centre on daily, monthly, or custom periods. Eliminate manual spreadsheet work.

Consumption analytics — trend charts, peak demand profiles, load factor analysis, and energy cost breakdowns. Identify waste and optimise tariff selection.

Web-based — no local installation — access from any browser on any device. Cloud hosted with role-based user access control for site managers and tenants.

32 circuits per master — one RS485 Modbus RTU address reports all 32 circuit values. Simplifies SCADA configuration dramatically.

18 mm per submeter (1P DIN) — the most space-efficient sub-metering solution available. Fits inside existing MDB and LDB panels without extension.

Rogowski coil — live-line installation — sleeve the flexible coil around busbars or cables without powering down. No rewiring, no construction downtime.

Class 0.5S accuracy — IEC 62053-22 certified. Revenue-grade for tenant billing, cost allocation, and utility sub-metering applications.

Integrated power supply — master meter powers all submeters over the RJ45 daisy-chain. No separate PSU wiring required for each submeter.

8,000 samples per second — 8× faster than standard 1 Hz SCADA polling. Captures transient events, motor inrush, and harmonic shifts that polling-based meters structurally cannot see.

51st harmonic analysis — real-time harmonic spectrum on a 3.5″ TFT display. Log results to 4 GB SD card for client reports.

~7 hours battery life — 4× AA batteries or 9 V DC adapter. Carry it from panel to panel across an entire building without recharging.

Live-line Rogowski coil — open-end flexible coil clips around any cable or busbar without powering down. Also accepts 333 mV CT input (BNC terminal).

RS485 + Modbus TCP — connect to a laptop or SCADA system while on-site. Export CSV logs from the SD card for power quality reports.