Large Power Sensor

Large Power Sensor can be wired to power-related objects (generators, Power Relays, stations that consume power, etc.), and will show available Power in the entire network (not just in the object it is wired to). It can display numbers from 0W to 999W. Value "!!!" means "1000W or more".

"Available power" means the difference between ALL produced power (by all generators) and ALL spent power (by all machinery). Presence of the batteries doesn't matter for the Power Sensor, because they don't have a Watt limit (they output as many Joules as the machinery needs).

There is a more compact Power Sensor that only displays 1 digit (from 0W to 9W).

Tips
If you need to measure power over 1000W, you can do so by wiring an empty battery to the network, and manually measuring how many seconds it takes to fully charge it.
 * For example, if Ultra Battery (18000J) became fully charged in 10 seconds, then you have 18000J / 10 seconds = 1800W.