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Eastron SDM120CTM vs Carlo Gavazzi EM112
| Install fit | ||
|---|---|---|
| Phase support | Single-phase 1P+N / 1P2W AC system. | Single-phase 1-phase 2-wire / 230 V L-N system for the selected MID variant. |
| Installation | Indoor one-module 18 mm CT-operated meter for 35 mm DIN rail in a dry enclosure; IP51 and CAT II context; qualified-person installation. | Indoor 2-DIN DIN-rail mounted direct-connected single-phase energy analyzer. |
| Measurement | CT-operated RMS multifunction meter for voltage, current, power, power factor, frequency, demand, and bidirectional energy via pulse and RS485 Modbus RTU. | Direct-connected single-phase active/reactive energy analyzer with imported/exported energy measurement and RS485 Modbus RTU. |
| Max current | 9999 A | 100 A |
| Meter fit | ||
| Accuracy class | Class 1.0 active energy; Class 2 reactive energy. Class B is MID-version only. | Active energy Class 1 / Class B; reactive energy Class 2. |
| Current sensing | External CT input: selectable 1 A or 5 A secondary, 0.25-5(6) A meter input, configurable 1-9999 A primary. MID versions lock the CT ratio after first setup. | Direct connection 5(100) A; no external CTs for EM112DINAV01XS1PFB. |
| Monitoring | ||
| Protocol | RS485 Modbus RTU / pulse output | RS485 Modbus RTU / pulse output |
| Local API | Yes | Yes |
| Cloud dependency | No vendor cloud required; readings are available locally through RS485 Modbus RTU and pulse outputs. | No vendor cloud required for core metering; readings are available locally through RS485 Modbus RTU and pulse output hardware paths. |
| Home Assistant | Yes | Yes |
| Solar fit | ||
| Solar import/export | Yes | Yes |
| Buying context | ||
| Availability | Global Eastron product range; distributor stock, CT package, certification, and variant availability vary by market. | Carlo Gavazzi global product channels; country pages, MID/UKCA availability, stock, and distributor routes vary by region. |
| Source check | ||
| Last verified | Aug 29, 2026 | Jul 16, 2026 |
| Product page | Official page | Official page |
| Documentation | Official docs | Official docs |
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