The Plaubel Peco is a monorail view camera for large-format sheet-film photography, built around a rail-mounted front and rear standard with bellows between them. Plaubel produced Peco monorail cameras in Frankfurt as part of its professional studio and technical camera range.

Sales history for the Peco Monorail is thin, with only two UK auction hammer results on file: £129 in 2001 and £402 in 1999. Those wholesale saleroom figures span roughly £130–£400, but with so few data points today's value depends heavily on which standards, bellows and accessories are included. A complete, clean outfit tends to sell for more than a bare body with a single standard.