With the compact differential pressure measuring nstrument testo 512-1 (0 to 200 hPa) you have the ideal solution for simple, fast and precise measurement of gas flow and static gas pressure on heating systems, for checking filters on air conditioning systems and for Pitot tube measurement in ventilation ducts. The testo Smart App supports you with useful functions such as configuration, display (also as second screen) and storage as well as documentation of the measured values directly in the App.

The compact CO₂ measuring instrument testo 535 is ideally suited for simple, fast and precise determination of carbon dioxide content to ensure indoor air quality and thus health and performance. The connection to the testo Smart App enables configuration, display (also as second screen) and storage as well as documentation of the measured values directly in the App.

With the compact Lux meter testo 545, you can measure the illuminance of all common light sources easily, quickly and precisely to ensure productivity, performance and health in workplaces. The testo Smart App supports you with useful functions, e.g. configuration, display (also as second screen) and storage as well as documentation of the measured values directly in the App.

• All results at a glance thanks to the large graphic display

• Exceptionally compact and reliable thanks to the easy-to-handle, robust housing with IP 54 protection class

• Easy, wireless, flexible measurements and documentation: Temperature and vacuum measurements via automatic Bluetooth^® connection, testo Smart App for documentation and lots more

• In the kit: testo 550s smart digital manifold with Bluetooth and 2-way valve block, 2 x clamp temperature probes (fixed cable, NTC), case

• All results at a glance thanks to the large graphic display

• Exceptionally compact and reliable thanks to the easy-to-handle, robust housing with IP 54 protection class

• Easy, wireless, flexible measurements and documentation: Temperature and vacuum measurements via automatic Bluetooth^® connection, testo Smart App for documentation and lots more

• In the kit: testo 550s smart digital manifold with Bluetooth and 2-way valve block, 2 x testo 115i wireless clamp temperature probes (Bluetooth, NTC), hose filling set with 3 hoses, case

• Completely wireless measurements and all results at a glance: thanks to Bluetooth probes and large graphic display
• Exceptionally compact and reliable thanks to the easy-to-handle, robust housing with IP 54 protection class
• Easy, wireless, flexible measurements and documentation: Temperature and vacuum measurements via automatic Bluetooth^® connection, testo Smart App for documentation and lots more
• In the kit: testo 557s smart digital manifold with Bluetooth and 4-way valve block, 1 x testo 552i wireless vacuum probe (Bluetooth), 2 x testo 115i wireless clamp temperature probes (Bluetooth, NTC), case

• Completely wireless measurements and all results at a glance: thanks to Bluetooth probes and large graphic display

• Exceptionally compact and reliable thanks to the easy-to-handle, robust housing with IP 54 protection class

• Easy, wireless, flexible measurements and documentation: Temperature and vacuum measurements via automatic Bluetooth^® connection, testo Smart App for documentation and lots more

• In the kit: testo 557s smart digital manifold with Bluetooth and 4-way valve block, 1 x testo 552i wireless vacuum probe (Bluetooth), 2 x testo 115i wireless clamp temperature probes (Bluetooth, NTC), hose filling set with 4 hoses, case

• Wireless measurement of refrigerant weight and operation with Testo manifolds and testo Smart App via Bluetooth

• Automatic and precise refrigerant charging according to target superheat, subcooling and weight in combination with intelligent valve (sold separately)

• All measured values for the charging process at a glance in the manifold and App with storage of the measured data in the App

• Particularly handy thanks to compact housing, low weight, practical carrying handle and a robust shoulder bag

With the testo 560i wireless refrigerant scale, you can measure refrigerant weight quickly, precisely and conveniently. Use a Testo manifold and the testo Smart App on your smartphone/tablet for operation and measured value display after the scale has automatically connected to both via Bluetooth. Especially practical: with the scale and the separately available intelligent valve, you can charge refrigeration systems and heat pumps automatically and precisely.

• Automatic and precise refrigerant charging according to target superheat, subcooling and weight thanks to intelligent valve

• Wireless connection and operation with Testo manifolds and testo Smart App via Bluetooth

• All measured values for the charging process at a glance with storage of the measured data in the testo Smart App

• Particularly handy thanks to compact housing, low weight, practical carrying handle and sturdy plastic bag

• 40 refrigerants are stored in the instrument

• Calculation of superheating and subcooling possible in parallel

• 999 hours of recording readings

• Set includes a clamp temperature probe for measuring the surface temperature of pipes

Purchasing the testo 570-1 digital manifold will ideally equip you to carry out quick, reliable measurements on refrigeration systems and heat pumps: carry out pressure, temperature, current and vacuum measurements as well as temperature-compensated tightness tests. Moreover, it calculates superheating and subcooling simultaneously.

• 40 refrigerants already stored in the meter

• Simultaneous superheat and subcooling calculation

• 999 hours of measuring data for logging and further evaluation on your PC

• Includes 2-clamp temperature sensor, PC software, USB cable, power adaptor and carry case

The testo 570-2 is a digital 4-way manifold gauge that combines the functions of all the old tools and measuring instruments it can so easily replace. The hvac manifold can measure, analyze and log – among other things – pressure, temperature, electricity and vacuum measurements.

• Automatic calculation of the dew point and wet-bulb temperature
• Measurement data analyzed and sent via testo Smart Probes App
• Clear identification of areas susceptible to mould via traffic light principle

• Measures air temperature, relative humidity and pressure
• Ideal for monitoring the ambient air especially in laboratories
• Alarm alerts when threshold is exceeded
• Table or wall mount

The testo 622 thermo hygrometer and barometer is designed to provide you with an at-a-glance look at the air temperature, relative humidity and air pressure. Ideal for monitoring the ambient air, especially in laboratories during calibration or when running experimental setups.

• Measures the temperature and humidity in the room and alerts the room’s occupants when thresholds are reached

• Large, easy-to-read display: shows the current reading and provides you with an at-a-glance 90-day statistic snapshot

• Long-term stable sensor – for long-term, high-quality measurements

• Table and wall mount included

The elegantly designed testo 623 thermohygrometer provides you with a quick and convenient means of measuring the temperature and humidity in offices, living spaces and commercial premises and logs the readings over a period of 90 days.