Abstract: An improved meter vault cover having a window-like access for externally viewing and reading the internal register of liquid or gas passing through the meter is provided. The improved meter vault cover not only provides the window-like opening but also provides a carriage-like support on the inside of the cover to hold a digital readout device to serve as the register. The digital figures of the readout device are projected and exhibited at the window-like access for making the register externally visible. The improved meter vault cover consists of a meter vault cover plate, a worm-type cover locking screw, a register support carriage with suitable screws for affixing the carriage to the cover, and a register device with suitable wiring to connect it to the meter.