ITT HQ series steam whistle stationary digital sound effect module. Module measures 1.5" X 2.6" X .4" and consists of a voltage regulator, digital sound effect chip, amplifier, volume control and terminal strips. Runs on 9-18v AC/DC or 9-12v battery. Includes a 2.5" speaker and complete installation instructions.

Bring your model train layout, diorama or doll house to life
with a realistic digital sound effect module

• HQ100-1 - Steam Whistle #1
• HQ100-2 - Steam Whistle #2
• HQ100-3 - Steam Whistle #3
• HQ100-4 - Steam Whistle #4
• HQ100-5 - Steam Whistle #5
• HQ100-6 - Steam Whistle #6
• HQ100-7 - Steam Whistle #7

The sound plays for 50 seconds and can be played one time using a push button switch, or continuously (at the end of play there is a 1 second reset silence) until turned off, using a toggle switch. Can also be activated with an external detection device. Place the speaker under the layout or in a building. Works with all scales.

Price is per sound module.