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| Testo 316-1 Detector for leaks in natural gas pipes |
Testo 316-4 Leakage detector for refrigerants |
Testo 315-1 Versatile CO measurement - For safety and service |
Testo 315-2 CO warning instrument |
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| Testo 317-1 Flue gas spillage detector |
Testo 317-2 Gas leak detector |
Testo 317-3 Ambient carbon monoxide warning |
Testo gas detector |
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| Testo 535 CO2 instrument with probe for HVAC fitters and engineers |
Testo 540 Pocket-sized light intensity measuring instrument |
Testo 545 Light meter with location management |
Testo 815 / 816 Sound level measurement |
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| Testo 319 Flexible fiberscope for fast diagnoses |
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