Smallest One to Four Gas Personal Monitor
The GX-3R is the worlds smallest 4 gas personal monitor weighing only 110 games and can comfortably be worn within a workers breathing zone (55mm W x 64mm H x 26mm D).
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One to Five Gas Personal Monitor
The GX-3R Pro is the worlds smallest 5 gas monitor weighting only 129 grams and fits in the palm on your hand (73 W x 65 H x 26 D mm). It simultaneously monitors and displays up to 5 different gases.
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Handheld One to Six Gas Personal Detector with Smart Sensors
The GX-6000 – the long awaited 6 gas personal monitor is finally here. This instrument is the lightest and smallest 6 gas monitor created, weighing in at only 600 grams with the rubber boot and all.
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Testo 420 – Volume Flow Hood
The testo 420 volume flow hood is the light, precise and convenient solution for regulating volume flow at larger air inlets and outlets. At swirl outlets in particular, the flow straightener significantly reduces the usual measurement errors.
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Air Velocity and IAQ Measuring Instrument
Use the testo 440 air velocity and IAQ measuring instrument in combination with high-quality probes to measure and store all air velocity and IAQ parameters.
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Kit For Evaluating Indoor Air Quality
With the testo 440 CO₂ kit with Bluetooth®, all IAQ-related parameters for evaluating indoor air can be measured and documented wirelessly.
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AC & Refrigeration Test Kit
The compact AC & refrigeration test kit plus includes two testo 549i high-pressure measuring instruments, two testo 605i thermohygrometers and two testo 115i clamp thermometers for pressure, (air) temperature and humidity measurement.
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Temperature Kit
The wireless Smart Probe testo 915i with plug-in TC probes makes temperature measurements even faster, easier and more flexible. Thanks to the innovative locking mechanism with compatibility with all Testo and other common Type K thermocouple probes, the Smart Probe can be used in the most diverse applications.
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Probe Thermometer
The testo 925 temperature measuring instrument is our all-rounder for temperature measurement in heating engineering, the sanitation sector and refrigeration and air conditioning technology.








