Device Comparisons

Compare devices side by side

Choose 2 to 4 devices, or open an editor-picked comparison.

Free Compare

Build your own comparison

Device type

Device 1 Device 2 Device 3 Device 4

Clear

Selected Devices

Eastron SDM72D-M vs Eastron SDM72CT-M

Energy Meter

Eastron SDM72D-M

Energy Meter

Eastron SDM72CT-M

Decision point	Eastron SDM72D-M	Eastron SDM72CT-M

Install fit
Phase support	Single-phase two-wire (1P2W) and three-phase four-wire (3P4W); 100-277 V L-N or 100-480 V L-L, 50/60 Hz.	3P4W on current product page; V1.2 manual also documents 1P2W and 3P4W measurement.
Installation	Indoor 72 mm / four-module DIN-rail direct connection; default top-in/bottom-out wiring.	Indoor 4-module 35 mm DIN-rail CT-operated panel installation; 72 x 100 x 66 mm, IP51 and CAT III. Professional wiring and correctly rated CTs are required.
Measurement	True-RMS 1P2W/3P4W voltage, current, power and bidirectional import/export energy measurement.	CT-operated RMS electrical parameters plus bidirectional active/reactive import-export energy; pulse outputs and local RS485 Modbus RTU.
Max current	100 A	9999 A
Meter fit
Accuracy class	Active energy Class 1.0 / Class B; reactive energy Class 2; MID certified.	Active energy Class 1/B; reactive Class 2; V/I 0.5%; power 1%.
Current sensing	Direct-connected whole-current meter with 10 A base current, 100 A maximum, 0.5 A minimum, 0.04 A starting current and 1 A transition current; no external CTs required.	External 1 A/5 A CT input; configurable 1-9999 A primary; current product page lists 0.25 A minimum and 10 mA start. 9999 A is the CT-primary setting ceiling.
Monitoring
Protocol	RS485 Modbus RTU / pulse output	RS485 Modbus RTU / pulse output
Local API	Yes	Yes
Cloud dependency	No vendor cloud required; local readings are available through RS485 Modbus RTU and pulse outputs.	No vendor cloud required; local RS485 Modbus RTU and pulse outputs are available through compatible hardware.
Home Assistant	Yes	Yes
Solar fit
Solar import/export	Yes	Yes
Buying context
Availability	Global Eastron product range; certification, stock, and suffix availability vary by market.	Global Eastron product and inquiry channels; exact CT package, certification, stock and distributor availability vary by market.
Source check
Last verified	Oct 5, 2026	Oct 7, 2026
Product page	Official page	Official page
Documentation	Official docs	Official docs