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OpenEnergyMonitor emonPi1 (emonPi) (emonPi)

Model: emonPi · SKU: emonPi

Prepared Nov 12, 2026

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Common specifications

Device type	Not documented
Max switched load (A)	Not documented
Max switched load (W)	Not documented
Measurement channels	2Source [1]
Current sensors	100 ASource [1]
Current rating	Not documented
Voltage range	Not documented
Accuracy	Not documented
Communications	Ethernet or WiFi; 433 MHz RFM69 radio receiver; TrueSource [1]
Display	Not documented
Power input	5V DC USB adapter; AC-AC adapter (9V AC) for voltage reference; 1.5W-2.5W RasPi2 / 2W-4W RasPi3Source [1]
Mounting	Not documented
Safety listing	Not documented
Weight	Not documented
Dimensions	Not documented
Enclosure volume	Not documented
Warranty term	Not documented

All recorded specifications

Communications	Ethernet or WiFi; 433 MHz RFM69 radio receiver; TrueDocumented claim Conditions Printed as "Network connectivity via either Ethernet or WiFi."; "Network connectivity via either Ethernet or WiFi."; "Network connectivity via either Ethernet or WiFi.". Location: Product page and documents as quoted Printed as "Network connectivity via either Ethernet or WiFi."; "Network connectivity via either Ethernet or WiFi."; "Network connectivity via either Ethernet or WiFi.". Location: Product page and documents as quoted Official product page · OpenEnergyMonitor product page: emonPi1 (emonPi) (captured October 12, 2026) [1]
Current sensors	100 ADocumented claim Conditions Printed as "2x CT Sensor inputs for single-phase AC electricity monitoring designed for use with the 100A SCT-013-000 CT sensor". Location: Product page and documents as quoted Printed as "2x CT Sensor inputs for single-phase AC electricity monitoring designed for use with the 100A SCT-013-000 CT sensor". Location: Product page and documents as quoted Official product page · OpenEnergyMonitor product page: emonPi1 (emonPi) (captured October 12, 2026) [1]
Measurement channels	2Documented claim Conditions Printed as "The emonPi can monitor two single-phase AC circuits using clip-on CT sensors.". Location: Product page and documents as quoted Printed as "The emonPi can monitor two single-phase AC circuits using clip-on CT sensors.". Location: Product page and documents as quoted Official product page · OpenEnergyMonitor product page: emonPi1 (emonPi) (captured October 12, 2026) [1]
Operating temperature	-25 to 80 °C-13 to 176 °F convertedDocumented claim Conditions Printed as "Operating temperature -25 to +80 DegC". Location: docs emonPi Specification table Printed as "Operating temperature -25 to +80 DegC". Location: docs emonPi Specification table Official product page · OpenEnergyMonitor product page: emonPi1 (emonPi) (captured October 12, 2026) [1]
Power input	5V DC USB adapter; AC-AC adapter (9V AC) for voltage reference; 1.5W-2.5W RasPi2 / 2W-4W RasPi3Documented claim Conditions Printed as "1x AC voltage measurement using plug-in AC-AC adapter for real power calculation alongside current measurement from CT sensors. Designed for use with a 9V AC ou"; "Power Consumption 1.5W-2.5W RasPi2 / 2W-4W RasPi3". Location: Product page and documents as quoted Printed as "1x AC voltage measurement using plug-in AC-AC adapter for real power calculation alongside current measurement from CT sensors. Designed for use with a 9V AC ou"; "Power Consumption 1.5W-2.5W RasPi2 / 2W-4W RasPi3". Location: Product page and documents as quoted Official product page · OpenEnergyMonitor product page: emonPi1 (emonPi) (captured October 12, 2026) [1]

Warranty

Certificate records

No records documented.

Sources and revisions

OpenEnergyMonitor product page: emonPi1 (emonPi) (captured October 12, 2026)Official product page · Checked Oct 12, 2026https://docs.openenergymonitor.org/emonpi/technical.html
OpenEnergyMonitor docs: System Overview (navigation lists Main System and Older Hardware)Official product page · Checked Oct 12, 2026https://docs.openenergymonitor.org/overview.html