The DIY Kyoto Wattson Additional Sensor is used with the Wattson Energy monitor if you have an older type Economy 7 system with two meters, a three phase supply or want to monitor your micro generation devices such as solar PV.
The DIY Kyoto Wattson is supplied with one standard sensor, which will work with most domestic supplies. If you want to use your Wattson to monitor a three phase (industrial) supply, you will need two additional standard sensors. If you have an older style Economy 7 meter which has three wires, or even two separate meters, you will need a single additional sensor. Modern Economy 7 meters with just a single wire do not need an additional sensor, you can tell Holmes, the software, that you have two tariffs.
The sensor is attached around the live cable that comes from your electricity meter; this will usually be in the meter cupboard.
Allows you to monitor three phase power
Ideal for older Economy 7 tariffs
Allows micro generation devices to be monitored
10Kw maximum per phase
