OpenEnergyMonitor emonTx4 (emonTx4): OpenEnergyMonitor's product image of the emonTx4 (emonTx4) on its own product page.

1 photo · Image from docs.openenergymonitor.org

Photo sources

Manufacturer and seller images. Configuration examples may include additional equipment.

Image source: OpenEnergyMonitor's product image of the emonTx4 (emonTx4) on its own product page.

OpenEnergyMonitor emonTx4 (emonTx4)

Name: OpenEnergyMonitor emonTx4 (emonTx4)
Brand: OpenEnergyMonitor
SKU: emonTx4

By OpenEnergyMonitorSKU emonTx4

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Device typeNot yet documented Max switched load (A)Not statedMax switched load (W)Not statedMeasurement channels6 Current sensorsNot stated Current ratingNot stated

Key specs

Units

SKU: emonTx4
Official product page
Sources
Printed as "The emonTx4 is part of the AVR-DB based hardware family which now includes the emonPi2 and the emonTx5.".
Official product page: OpenEnergyMonitor product page: emonTx4 (captured October 12, 2026) Checked Oct 12, 2026 · Earlier document
Location: docs Overview
Documented
Power input: emonVs precision voltage sensor input
Official product page
Sources
Printed as "emonVs precision voltage sensor input.".
Official product page: OpenEnergyMonitor product page: emonTx4 (captured October 12, 2026) Checked Oct 12, 2026 · Earlier document
Location: Product page and documents as quoted
Documented
Mounting: wall-mount aluminium enclosure
Official product page
Sources
Printed as "Wall-mount aluminium enclosure".
Official product page: OpenEnergyMonitor product page: emonTx4 (captured October 12, 2026) Checked Oct 12, 2026 · Earlier document
Location: Product page and documents as quoted
Documented
Communications: 433 MHz radio transceiver
Official product page
Sources
Printed as "433 MHz radio transceiver".
Official product page: OpenEnergyMonitor product page: emonTx4 (captured October 12, 2026) Checked Oct 12, 2026 · Earlier document
Location: Product page and documents as quoted
Documented
Measurement channels: 6
Official product page
Sources
Printed as "6x clip-on CT current sensor inputs (suitable for a range of 333mV voltage output CT sensors).".
Official product page: OpenEnergyMonitor product page: emonTx4 (captured October 12, 2026) Checked Oct 12, 2026 · Earlier document
Location: Product page and documents as quoted
Documented

All specs4

Power input: emonVs precision voltage sensor input
Official product page
Sources
Printed as "emonVs precision voltage sensor input.".
Official product page: OpenEnergyMonitor product page: emonTx4 (captured October 12, 2026) Checked Oct 12, 2026 · Earlier document
Location: Product page and documents as quoted
Documented
Mounting: wall-mount aluminium enclosure
Official product page
Sources
Printed as "Wall-mount aluminium enclosure".
Official product page: OpenEnergyMonitor product page: emonTx4 (captured October 12, 2026) Checked Oct 12, 2026 · Earlier document
Location: Product page and documents as quoted
Documented
Communications: 433 MHz radio transceiver
Official product page
Sources
Printed as "433 MHz radio transceiver".
Official product page: OpenEnergyMonitor product page: emonTx4 (captured October 12, 2026) Checked Oct 12, 2026 · Earlier document
Location: Product page and documents as quoted
Documented
Measurement channels: 6
Official product page
Sources
Printed as "6x clip-on CT current sensor inputs (suitable for a range of 333mV voltage output CT sensors).".
Official product page: OpenEnergyMonitor product page: emonTx4 (captured October 12, 2026) Checked Oct 12, 2026 · Earlier document
Location: Product page and documents as quoted
Documented

Published claims and calculations, not independent test results.

Documents

1 on file

WEB
OpenEnergyMonitor product page: emonTx4 (captured October 12, 2026)OfficialOpenEnergyMonitorOfficial product page
Source details
Revision
Not stated
Revision date
Not stated
Archived copy captured on 2026-10-12.
Location: Product page
Retrieved Oct 12, 2026
OpenEnergyMonitor's own product page, captured October 12, 2026 with the paced research fetcher. Manufacturer statements, not independent tests.
Open

Archive and older revisions1

Earlier revisions, archived captures and copies published by someone other than the manufacturer. Every one stays reachable.

WEB
OpenEnergyMonitor docs: System Overview (navigation lists Main System and Older Hardware)OfficialOpenEnergyMonitorOfficial product page
Source details
Revision
Not stated
Revision date
Not stated
Archived copy captured on 2026-10-12.
Location: Product page
Retrieved Oct 12, 2026
OpenEnergyMonitor's own product page, captured October 12, 2026 with the paced research fetcher. Manufacturer statements, not independent tests.
Open