Sound Activated FM Transmitter Kit – CK0205
Sound turns on the sound activated FM transmitter, which operates in the FM radio band. The volume of sound needed to trigger the circuit is adjustable. Great for a baby monitor. The two stage transmitter has good range and the circuit powers down unless it hears sounds; reactivates with a sound. Operates on two double AA batteries (use a 9 volt to increase range) DIY K28.
- L: 2-1/2″ W: 1-1/2″ H: 3/4″.
- Requires 2 – AA volt batteries (or use this SK600NS Power Supply instead of a Battery)
- Sensitivity user select-able.
- Electronic Kit – Soldering required.