The museum curator went to the shelf and pulled down an ancient metering device.
Flexible 8 channel metering includes selectable ballistics, clip and limiting indicators.
The overall substation kW hrs metering is undertaken from the incoming circuit breaker.
As usual, I have relied on my instincts and a handheld exposure meter, rather than on TTL metering.
To keep the traffic running on the highway in peak time a ramp metering system is operating on 3 highway intersections.
privatized, water metering was recognized and encouraged as part of the answer.