Compatible with the emonTx and emonPi.

Used to give an AC voltage sample which can be used to calculate the rms voltage, real power, power factor, frequency and to detect power flow direction.

The emonTx V3 can be powered from this adapter; the emonPi requires an additional 5V DC USB power adapter. 

Technical

Manufacturer & model: Ideal Power Ltd. 77DE-06-09 Datasheet

Input: 230-240V AC 50Hz

Output: 9V AC

Output: 666mA 

Power: 10W

2.1mm barrel jack 

Euro 2-pin plug 

Documentation 

Calibration page  - calibration value must be inserted into sketch before uploaded 

Ideal Power AC-AC adapter Technical Report

emonTx documentation