Jaycar Dual Sound Piezo Buzzer 1–13VDC | Continuous & Pulse Tone | 105dB

You need a signal that actually gets heard. Not a faint chirp that vanishes under machine noise or a busy shop floor. This one hits 105dB at 30cm and gives you both continuous and pulsed tones on the same unit — red and black leads for steady, yellow and black for pulse. Non-inductive, runs from as low as 1V. One 3mm screw holds it in place. Sorted

• 105dB at 30cm continuous, 100dB at 30cm pulse — you'll hear it
• Dual tone: continuous (red/black) and pulsed (yellow/black)
• Pulse rate 2–7 pulses per second
• Non-inductive operation from 1–13VDC
• Surface mount with single 3mm screw — quick to install