Chelsea Technologies specialises in the design of underwater transducer technology. With over 45 years’ experience, our comprehensive range of standard transducers are ideal for a wide range of applications from aquaculture to defence. Our in-house acoustics experts can also help with custom products and design projects.


We offer two types of transducer products; hydrophones and projectors. Our Hydrophones produce an electrical signal from the sound pressure (SL) in the water, whilst our Projectors produce a sound field in the water, referred to as the Source Level (SL). A wide selection of spherical, tubed and flexural discs transducers are available, all capable of low frequency and useful for sound sources.


Standard Products



DualSense are a series of reliable, robust, spherical transducers, capable of projecting and receiving underwater acoustic signals. Available in a wide range of frequencies, the majority are both horizontally omni-directional, with vertical directionality greater than 270 degrees.

Models: 12, 30, 60, 80 and 115

DualSense 012 Datasheet

DualSense 030 Datasheet

DualSense 060H Datasheet

DualSense 080 Datasheet

DualSense 115 Datasheet



SonoTube is a series of low frequency, broadband transducers, operational in both transmit and receive modes.

Models: D12 and D13

SonoTube D12 Datasheet

SonoTube D13 Datasheet