Ancillary Equipment
In addition to reference method gas analysers, Signal Group also manufactures a full range of sample handling, calibration and test instruments; making Signal a one-stop-shop for emissions monitoring equipment.
Click here for our latest brochure on:
- Heated sample handling units
- Cooler dryers
- Methane cutters
- NO2 and NH3 to NO Converters
- Test & calibration equipment
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Model NOXGEN IIIR Efficiency Tester

The unit is controlled by using two decade thumbwheel switches adjustable from 00 to 99, and a three position ozone level switch for low, medium and high settings. The Noxgen 3 R provides the option of remote control using TTL levels for all operational functions

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821S 10-step Gas Divider

Eleven fixed steps from 0-100% concentration are provided, each step rising nominally by 10%
The unit divides two gases through a chain of 10 capillary tubes, with the operaator selecting the number of capillaries to which each gas is open.
- Extremely reliable repeatability performance of +/-0.5% of point
- Simple to operate
- Remote control allowing automated instrument linearity auditing and calibration
- UKAS and NIST calibration available
- Remote control audit software available
- Ideal for regulated gas analyzer auditing and calibration e.g. US EPA CFR40 Part 1065
- Compliant with international standards
Please click the link below for the new Gas Divider brochure:


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