L400 Ultrasound Speaker

9,800 kr excl VAT

The L400 is an ultrasound loudspeaker with built-in amplifier that can be connected to any recording device capable of playing analog ultrasonic signals, such as the D1000X ultrasound detector or a computer with a high-speed sound card. It can be used for various playback experiments, as an acoustic lure and for teaching the use of bat detectors by listening to the sound from the loudspeaker.

A well-written guide on how to set up a bat lure can be found at Dean Waters’ blog.

Additional information

Weight 1600 g
Dimensions 240 × 165 × 70 mm
Frequency range

10 kHz – 110 kHz


8 x AA cells (built-in) or 12 – 28V external power supply

Max output level

>100 dB @ 0.5 m and 60 kHz sine wave (at 28 V supply voltage)


Volume control
Level indicator
Rugged aluminium housing

Availability: Out of stock