CMH Ltd Distributors of Testing Equipment and Labware New Products From CMH
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 SVAN 971 Class 1 Sound Level Meter

SVAN 971 Class 1 Sound Level Meter is an extremely small instrument with options for 1/1 & 1/3 octave analysis. The instrument brings unprecedented state of the art technology to a SLM of this size while the user interface makes both configuration and measurement easier than ever before. This makes it an ideal choice for many applications including industrial noise hygiene, short term environmental noise, acoustic consultants, technical engineers and general noise measurements.


  • Optional extremely simple operational "Start/Stop" mode
  • Triggered audio recording
  • Built-in self-vibration monitoring providing information about level of vibration that influences the measurement results
  • Time history logging
  • Easily calibrated in the field using an acoustic calibrator.

Included Accessories

SvanPC++ software enabled users to organize data from a number of measurements and create measurement reports in a quicker and more efficient way than ever before

 Karsten Tube Penetration Test

The TQC Karsten Tube Penetration Test measures the degree of water penetration into materials such as concrete, stone and plaster. The test consists of a glass tube filled with water, bonded to the test material with plastiline. Water pressure is then exerted on the surface. A graduated scale indicates the amount or water penetrated into the surface over time.

Included Accessories

The Test contains 3 tubes for horizontal surfaces, 3 tubes for vertical surfaces (or at choice any other combination of total 6 tubes), a water bottle, marker and putty to place the tubes leak-tight on the surface

 TQC Shore Hardness Test A and D

The TQC Shore Hardness Gauge is a reliable instrument for measuring the impression hardness of soft materials such as coatings, plastics and rubber. Equipped with a drag indicator, which holds the highest measured result. Delivery includes a simple test block.

Optional accessoires:

  • Set of Testblocks
  • Operating stand


DIN 53505, ISO 868 and ASTM D 2240


The GAH Electrastream is a complete cost effective solution for hot and cold water supply and electric central heating with water filled radiators or blended underfloor heating. It is suitable for domestic dwellings such as flats, granny annexes, houses, offices and small commercial premises with a heat loss of 9 kw or less.

CMH Ltd, Unit 3, Winston Business Centre, Chartwell Road, Lancing, West Sussex, UK|  FAX +44 (0) 1903 751188  |  PHONE +44 (0) 1903 751133