Seiko DM51 Digital Metronome Pacer
The Seiko DM51 digital metronome features a small clip-on form factor that is very popular with runners for use as a pacer. Runners can preset a desired cadence, clip the lightweight unit on and stay right on target during their run. The DM51 is a replacement for the popular DM50. The DM50 and DM51 have similar features except the DM51 has an improved rotary volume control for quick volume adjustment.