# This ia a test

**URL:** <https://community.openenergymonitor.org/t/this-ia-a-test/14566>\
**Category:** Sandpit\
**Created:** [19 June 2020 17:28 UTC](https://community.openenergymonitor.org/t/this-ia-a-test/14566 "2020-06-19T17:28:59Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![borpin](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/borpin/32/193_2.png) [@borpin](https://community.openenergymonitor.org/u/borpin)\
**Post date:** [19 June 2020 17:28 UTC](https://community.openenergymonitor.org/t/this-ia-a-test/14566/1 "2020-06-19T17:28:59Z")

</div>

A temporary place to experiment with the new forum, and familiarise yourself with posting formats and options.  
_ **PLEASE! use the main forum categories for questions & support.** _

# emonTx V3.4

The emonTx V3.4 is the latest version of the emonTx Low Power Wireless Energy Monitoring Node designed for monitoring AC electrical power on a maximum of 4 separate (household/building) circuits using non-invasive clip-on CT sensors and an AC-AC Voltage adapter to provide a voltage signal for Real Power calculations. The emonTx V3.4 is a minor update to the [emonTx\_V3](https://wiki.openenergymonitor.org/index.php/EmonTx_V3)

[![emonTx V3.4](https://wiki.openenergymonitor.org/images/thumb/Emontx_V3_4_top.jpg/750px-Emontx_V3_4_top.jpg)](https://wiki.openenergymonitor.org/index.php/File:Emontx_V3_4_top.jpg)

## Features

**New features on emonTx V3.4 over V3 shown in bold**

- Measure AC Apparent Power, AC Real power\* and AC RMS voltage\*

- 3 x single-phase CT current sensor inputs (100A / 24KW @ 240V max)

- 1 x high sensitivity single-phase CT current sensor input channel (18.8A / 4.5KW @ 240V max)

- **1 x RJ45 input for connecting DS18B20 temperature sensors**

- Single AC-AC adapter can power the unit and provide AC voltage measurement

- An on-board 3x AA battery option **with remote monitoring of battery voltage**

- Terminal block access to power rails, digital and analogue I/O and IRQ port for connecting pulse counting sensor / DS18B20 temperature / Aux sensors

- **DIP switch selection of RF node ID and 240V/120V AC adapter selection, see [#DIP Switch Config](https://wiki.openenergymonitor.org/index.php/EmonTx_V3.4#DIP_Switch_Config)**

- when AC-AC voltage adapter is connected