Large Service Contractors

The testo 550 digital manifold can now make working on refrigeration systems and heat pumps even easier: the instrument can be used for 60 refrigerants, calculates superheating/subcooling automatically and can now also be connected to a practical smartphone/tablet app. The app makes the operation and the documentation of measurement results significantly more convenient.

• Automatic superheating/subcooling calculation: no more need for manual calculations, which are prone to error

• With a practical app: (remote) display, graphical progress display, documentation of readings

• Temperature-compensated leakage test

• 60 current refrigerants are included in the manifold (update possible via app)

The testo 557 digital manifold fulfils numerous functions, which are required for working on refrigeration systems and heat pumps, in just one instrument: for example superheating/subcooling calculation, vacuum measurement, temperature-compensated leakage test. You can also use a practical app to monitor the manifold via your smartphone/tablet and store the measurement results or send them by e-mail.

• Calculation of superheating and subcooling in real time: no manual calculation, which is prone to error

• Connect to smartphone/tablet app: remote monitoring and smart measurement documentation

• Precise external Pirani gauge for vacuum measurement, temperature-compensated leakage test, automatic ambient pressure measurement

• The 60 most common refrigerants are stored in the instrument, subsequent updates possible (via app)

Differential pressure measurement on gas hot water heaters or on filters of air conditioning systems, and also flow measurements in ventilation ducts using a Pitot tube: the compact testo 510 differential pressure measuring instrument, which comes with a silicone connection hose and other useful accessories, can help you maintain and install systems in the sanitary and HVAC sector.

• Differential pressure measurement from 0 to 100 hPa 

• Flow measurement possible with a Pitot tube (available as an option)  

• Magnets on the rear allow hands-free work 

• 10 units to choose from, display in pascals can be selected 

The testo 608-H1 thermohygrometer enables you to have a continuous display of the current temperature and humidity values. This means you can always keep an eye on the indoor climate.

• Continuous measurement and display of temperature and relative humidity

• Calculation and display of the dew point

• Large, clear display

• Durable quality: capacitive humidity sensor with long-term stability for many years of measurement

This temperature measuring instrument is particularly practical because it enables virtually any kind of temperature measurement. Whether for surface, air or immersion/penetration measurement: with the testo 925 you can rely on our all-rounder in heating engineering, the sanitation sector and refrigeration and air conditioning technology.

• An attachable temperature probe and a radio temperature probe can be connected

• Large range of fast temperature probes on offer for surface, air or immersion/penetration measurement (optional)

• Continuous display of min./max. values

• Acoustic alarm sounds when limit values are exceeded

The testo Smart Probes Refrigeration set is ideal for carrying out servicing and troubleshooting on air conditioning and refrigeration systems, as well as for installing them. The robust testo Smart Case enables the measuring instruments to be conveniently transported and ensures that they are always to hand when needed.

• Low refrigerant loss thanks to hose-free application

• Quick and easy installation directly at the pressure connection

• Easy refrigerant selection

• Automatic calculation of the evaporation and condensation temperature via testo Smart Probes App

Extremely precise, rugged and practical: the testo 552 digital vacuum gauge. Ideal for evacuating refrigerant systems or heat pumps.

• Measurement data monitoring via testo Smart Probes App

• Measurement data dispatch via testo Smart Probes App

• Extremely precise, extremely rugged, extremely practical – with visual alarm and backlit display

• Measures pressure and calculates the evaporation temperature of H2O automatically

The functional testing of ventilation and air conditioning systems includes monitoring the flow speed in ventilation ducts. If the air flow velocity and volumetric flow are not set correctly, the room air quality may suffer. The testo 425 thermal anemometer measures the flow speed and automatically calculates the volumetric flow.

• Temperature and flow measurement as well as volumetric flow calculation

• Permanently attached extendible telescopic probe – maximum length 820 mm, diameter 7.5 mm

• With single and multi-point averaging

• Hold function, display of min/max value, Auto-off function

The testo 830-T1 infrared thermometer allows efficient, non-contact surface temperature measurements to be carried out. The IR thermometer will leave you well equipped, especially for control readings in trade and industry: The gun-style design is easy to handle and the integrated processor provides accurate measurement results.

• Infrared thermometer for non-contact surface temperature measurements

• 10:1 optics and high resolution processor for accurate measurement results

• Easy to use thanks to the gun-style design

• Adjustable emission level

The testo 625 thermohygrometer comes into its own in all situations where the right indoor climate is crucial, for example in archives, storerooms, greeenhouses and buildings. The testo 625 also calculates the dew point and wet bulb temperature quickly and accurately.

• Measures air temperature and relative humidity

• Calculates dew point and wet bulb temperature

• Displays min and max values, hold function, power off mode

• Integrated longlife moisture meter for long lasting quality

The testo 540 light meteris a quick and easy-to-use entry level model designed for measuring lighting conditions in the workplace.

• For quick ‘n easy measurements in the workplace

• Sensor is modelled on the spectral sensitivity of the human eye

• Hold function, min/max values

• Protective cap for safe storage

Non-contact measurement on tightly packed cables is really easy and reliable with the testo 770-3 clamp meter. Its innovative grab mechanism will make your work easy. The most powerful model in the clamp meter series, it offers lots of additional functions for those challenging tasks that you are faced with on a daily basis, e.g. communication with the smartphone app via Bluetooth.

• Easy to operate thanks to the fully retractable pincer arm

• Auto AC/DC and large two-line display

• Improved TRMS method

• Bluetooth connection to your smartphone (with the testo Smart Probes App)

The testo 549 digital manifold offers many advantages in comparison with analog manifolds: the instrument will make it easier for you to work on refrigeration systems and heat pumps. With its integrated temperature measurement and automatic calculation of superheating/subcooling, you can now do away with additional measurements and manual comparisons (when using an optional clamp probe). You can also use the manifold for 60 current refrigerants.

• 60 current refrigerants stored in the instrument

• Calculation of superheating and subcooling in real time (with optional clamp probe): saves you from having to carry

• Temperature-compensated leakage test

• Two temperature-compensated pressure sensors

The testo 830-T2 infrared thermometer enables you to carry out efficient, non-contact surface temperature measurements. The IR thermometer will ensure that you are well equipped, especially for undertaking control measurements in trade and industry: the gun-style design is easy to handle and the integrated processor provides accurate measurement results.

• Infrared thermometer for non-contact surface temperature measurements

• 12:1 optics and high resolution processor for accurate measurement results

• Contact measurement possible with connectable temperature probe (TC type K)

• Adjustable emission level

Leak detection in refrigeration engineering? Sure thing! The testo 316-3 refrigerant leak detector can detect all the most common cooling agents and locate even the smallest leaks. Complies with all important regulations and norms. One piece of kit you as a refrigerant technician won’t want to be without.

• Can detect all the most common cooling agents: CFCs, HFCs, FCs

• Highly sensitive – detects even the smallest leaks

• Easy-to-use one-button operation

• Complies with specifications for F gases regulations, SAE Code J1627 and DIN EN 14624:2012 standard

The testo 608-H2 thermo hygrometer measures the air temperature, humidity and dew point and has a large, easy-to-read display and a visual alarm that is activated when a threshold is exceeded.

• Measures and displays temperature and humidity

• Calculates and displays the dew point

• LED alarm is activated when thresholds are exceeded

• Long-lasting quality: long-time stable humidity sensor guarantees years of measuring

With the testo 405i hot wire anemometer, you can measure air velocities, temperatures and volume flows. Via Bluetooth, the readings are transmitted wirelessly straight to the testo Smart Probes App on your smartphone or tablet. You can view the values conveniently and use numerous intelligent features:

• for measuring volume flow, air velocity and temperature

• Simple configuration of the dimension and geometry of the duct cross-section for determining the volume flow

• Convenient for working in ventilation ducts thanks to its telescopic tube, which can be extended up to 400 mm

• Really convenient to operate thanks to the testo Smart Probes App (e.g. easy viewing of readings, measurement data trend, log function)

With the Testo Smart Probes VAC set, you can check air velocities, humidity, volume flows and temperatures in, on and around air conditioning systems. The robust testo Smart Case enables the measuring instruments to be conveniently transported and ensures that they are always to hand when needed.

• Easy parametrization of the outlet/duct cross-section for measuring the volume flow

• List of multiple volume flows and calculation of the total volume flow (in the log)

• Identification of mould risk thanks to the combined utilization of testo 605i and testo 805i

• Rapid image documentation with IR temperature readings and measuring spot marking

Speedy and sure gas leak detection. The testo 316-2 provides you with a quick and reliable means of detecting methane, propane and hydrogen in the surrounding air. The gas concentration is displayed in the form of an easy-to-read bar and an alarm is triggered when a threshold is crossed.

• 18-step bar for displaying gas concentration; additional maximum leakage display

• Quick reaction time with built-in pump

• Flexible gooseneck sensor for checking hard-to-reach pipes and places

• Rechargeable batteries for longer performance

Handy and intelligent: the compact testo 510i differential pressure measuring instrument featuring professional measuring technology and smartphone operation for measuring differential pressure, air flow velocity and volume flow. Readings can be viewed conveniently on your smartphone/tablet via the testo Smart Probes App and emailed directly.

• Measurement of gas flow and static pressure

• Measurement menu for pressure drop test including alerts

• Simple configuration and determination of volume flow with Pitot tube

• Magnetic holder for easy attachment