About the Range

Precision signal filtration before digitization & analysis

Discover unparalleled accuracy and reliability in electronic signal filtration with Kemo Ltd.'s cutting-edge electronic filters. Designed for optimal performance prior to signal digitization and analysis, our extensive range offers solutions for OEMs and end-users alike — from compact filter modules for seamless integration onto circuit boards to convenient DIN Rail Filter options.

At Kemo Ltd, quality is ingrained in every aspect of design and manufacturing. With a legacy of over 50 years, our filters stand the test of time, delivering superior performance and longevity. Crafted in the UK, our modular filters feature a versatile configuration, offering a choice of single or multi-channel chassis to suit specific requirements.

Common features include high gain, low noise, IEPE signal conditioning, AC and DC coupling, single-ended or differential inputs — with charge amplifier signal conditioning and 4–20 mA input/output available in some models. These ensure seamless compatibility with direct sensor connections in monitoring, acoustic, vibration and numerous other installations. Whether you require Anti-Aliasing, Band Pass, High Pass, Notch, or Low Pass responses, our solutions cover the full spectrum.

All our standard active filter responses (Butterworth, Bessel, Elliptic, Anti-Aliasing, General Purpose) feature an 8-pole solution offering better attenuation — our recommended route. If you need to match an old specification or previous test, 4-pole versions are still available for most responses.

Product Lines

Explore the Filter Range

DIN Rail Filter

DIN Rail Filters

Fixed and variable filter solutions, with options for charge, IEPE, 4–20 mA and PRT signal conditioning.

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Active Filter Module

Active Filter Modules

Available for integration into your PCB design — a range of filter types are available to suit your application.

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CardMaster 21.2

CardMaster 21.2

Dual channel carrier card for 1200 and 1600 filter modules. Fixed and semi-fixed frequency, available in single or multi-card chassis.

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CardMaster 255G

CardMaster 255G

Single channel card with front panel control, 254 filter steps, 9 gain steps, interface and signal level indication. Available in single or multi-channel chassis.

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BenchMaster 21M

BenchMaster 21M

Easy to use versatile manual filter system. Switchable highpass / lowpass with gain to ×50 (+34 dB).

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BenchMaster 8

BenchMaster 8

Highly versatile 2-channel bench-top filter, gain to ×500 (+54 dB) — the industry standard solution.

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VBF 40

VBF 40

Top of the range multi-channel solution. 1 Hz – 255 kHz, ×1000 (+60 dB) gain, 5 built-in filter responses, PC control interface.

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VBF 44

VBF 44

4 channel fully programmable, 1 Hz – 255 kHz, +60 dB gain, 5 built-in filter responses. Top of the range performance with PC control.

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Psophometer RM2-PSP

Psophometer RM2 - PSP

A high-performance, dual-channel Psophometer and psophometric filter designed in accordance with ITU-T Recommendation O.41.

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Need Help Selecting the Right Filter?

Our application engineers will help you match the perfect Kemo filter to your sensor, frequency band and channel count.