Electronic Siren - Rollins Railroad Design
Item description: Circuit designed around an oscillator. Press the switch and a rising tone is produced until a steady tone is reached.
Power requirement: 9 volts DC
Dimensions (length x width x height): 2.0" x 0.8" x 0.5"
Rollins Railroad Designs Part Number: 001kitrr
Price each, in U.S. dollars: $11.00
Be sure to make checks payable to "Mark Rollins"