This unusual item is a Vintage Analogue Watt Test Meter In a Case Used in RF Radio Transmission Sending for measuring the electrical power of a circuit.

These sorts of meters were used during WW2 and up to the 1950s in radio communication for amateur radio, military and laboratory testing. This one is sold as a collectible for display only and has not been tested.

In pretty good cosmetic condition, the meter is housed in its own, unusual, outer aluminium case with 4 input/output connectors on the rear. It sits neatly on four rubber feet on a work surface. There are some surface blemishes and crazing in the case paint, which is more noticeable in the images than on visual inspection.

Approximate Size (WHD): 9.2 x 11 x 10.8 cm

The meter, with a bakelite surround, features an analogue scale, labelled "WATTS," which has a range from 0 to 40 with a red line at 30 watts.