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The high-precision testo 521-1 differential pressure measuring instrument is ideal for accurate differential pressure measurements in air conditioning and ventilation technology, for instance for pressure drop on filters, checking fans and extractors or for Pitot tube measurements.

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If you need a measuring instrument for accurate temperature measurement or you would like to measure the temperature in several locations simultaneously, the testo 735-1 is the ideal equipment for you. The wide selection of optional probes enables flexible use of the temperature measuring instrument, for example to calibrate stationary temperature probes, in the electronics and food industries or in laboratories.

Testo 735-2 multichannel temperature measuring instrument can master virtually any application for temperature measurements in the cosmetics, chemical, refrigeration industries, etc, thanks to a widerange of optionally available sensors, a super-size memory and wireless data transfer.

Non-contact temperature and moisture measurements &ndash;with only one device. The testo 835-H1 infrared thermometer not only measures the temperature but has an intergrated moisture sensor that allows you to measure surface moisture too.

The practical infrared thermometer testo 835-T1 offers maximum safety and precision when measuring the temperature of smaller objects from a medium distance.

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The testo 835 T2 high temperature infrared thermometer, your ideal companion for measurements where your infrared thermometers have given up. The testo 835 T2 allows you to measure temperatures up to 1500 &deg;C and moving objects safely and reliably.

This ISO calibration certificate certifies that your measuring instrument or probe is calibrated. Calibration is carried out according to the ISO standard.

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ISO temperature calibration certificate - with 3 measuring points

ISO temperature calibration certificate - with 3 measuring points

General technical data