Testo 521-3 – Differential pressure measuring instrument (up to 2.5 hPa)

The testo 521-3 high-precision differential pressure measuring instrument easily determines even the smallest differential pressures (up to +2.5 hPa). Its high accuracy and a resolution of 0.1 Pa make the instrument ideal for differential pressure measurements in clean rooms or for flue inspections.

Product benefits:

Integrated temperature-compensated differential pressure sensor with accuracy of up to ± 0.5 Pa
Calculation of the flow velocity and the volume flow via Pitot tube (optional)
Direct zeroing of the display values of pressure probes
2 probe inputs for additional pressure and temperature probes

SKU: 0560 5213.

The testo 521-3 differential pressure measuring instrument is designed for high-precision differential pressure measurements in air conditioning and ventilation technology. It can be used, for example, for measurements in clean rooms and for flue inspections – thanks to a high level of accuracy and outstanding resolution. In conjunction with a Pitot tube (optional), the integrated pressure sensor measures flow velocities of +1 to +20 m/s.

Testo 521-3 differential pressure measuring instrument
including calibration protocol
batteries

Measuring range	-40 to +150 °C
Accuracy	±0.2 °C (-10 to +50 °C) 0.4 °C (Remaining Range)
Resolution	0.1 °C

Testo 512-3 – Download

Testo 512-3 – upustvo – Download

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testo Smart Probes AC & refrigeration test kit

Compact kit containing testo 549i high-pressure gauge and testo 115i clamp thermometer (two of each).

Key Features:

Application-specific measurement menus for superheating/subcooling
More than 90 common refrigerants plus refrigerant updates in the testo Smart Probes App
100 m Bluetooth^® range for particularly flexible applications
Transmission and analysis of measurement data via testo Smart Probes App

37,750 din. bez PDV-a

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testo 410 i – Vane Anemometer Smart and Wireless Probe

The testo 410i Smart Probe is a compact wireless vane anemometer for measuring air velocity, and temperature and deriving volume flow. It is used at air outlets, and for monitoring the air flow of ventilation systems.

Key Features:

Measures air velocity, volume flow, and temperature as well as air flow at registers and automatically calculates volume flow (enter duct dimensions simply)
No air density correction required due to design
Measure volume flow at several outlets simultaneously (using mutiple Smart Probes) to adjust system balance
Timed/multipoint averaging to get accurate air flow profiles

12,100 din. bez PDV-a

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Testo 905i – Thermometer Smart and Wireless Probe

The testo 905i Smart Probe is an air temperature Smart Probe that quickly and accurately measures temperature in rooms, ducts, registers, and environmental boxes/chambers.

Key Features:

Quickly and accurately measures air temperature in rooms, ducts, registers, and outlets
Fast acting temperature probe quickly tracks changes and shows trends on a graphic display
Measurement data is transmitted to the convenient and powerful testo Smart Probes App in your smart device
Tough, accurate, and easy-to-use

11,446 din. bez PDV-a

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Testo 805i – Infrared Thermometer Smart and Wireless Probe

The testo 805i Smart Probe is an infrared (IR) thermometer that provides non-contact temperature readings; great for checking breakers, motors, ducts, and registers from a distance. The measurement area is indicated by a circular laser pattern which asssures accurate targeting measurement.

Key Features:

Measures non-contact temperature
Optic target ratio (10:1)
Measurement area indicated by circular laser pattern assures accurate assessments
Photograph objects with smart device, capturing measurement marker and temperature values for reference and reporting

11,250 din. bez PDV-a

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Testo 605i – Thermo-hygrometer Smart and Wireless Probe

The testo 605i Smart Probe thermo-hygrometer is a humidity and temperature measuring instrument that quickly and accurately measures relative humidity, dew point, and temperature in rooms, ducts, registers, and environmental boxes/chambers.

Key Features:

Quickly and accurately measures relative humidity and temperature in rooms, ducts, and chambers
Automatically calculates dew point & wet bulb temperature
Small diameter probe is ideal for in-duct measurements
For all HVAC/R technicians and contractors

12,100 din. bez PDV-a

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Testo 549i – Refrigeration Pressure Smart and Wireless Probe

The testo 549i Smart Probe is a hose-less, wire-less, pressure probe for measuring refrigerant charge in AC/Refrigeration systems. It is used for servicing, troubleshooting, and documenting the operation of residential or commercial AC/refrigeration systems. When two 549i are used in conjunction with two 115i pipe-clamp temperature probes it is easy to monitor superheat and sub-cooling in AC/refrigeration systems.

Key Features:

Measures high-side or low-side refrigerant pressure (or both simultaneously with 2 probes) in AC/refrigeration systems
No hoses required! Clean, simple, accurate.
Low-loss refrigerant pressure testing!
Use with 115i pipe-clamp temperature probes for automatic superheat / sub-cooling calculations

9,950 din. bez PDV-a

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Testo 510i – Differential Pressure Manometer Smart and Wireless Probe

The testo 510i Smart Probe is a wireless differential pressure probe used for accurate low-pressure measurements. The testo 510i is great for measuring pressure in manifolds, static pressure, and pressure drops in buildings or ventilation systems. Use it to measure the pressure drop across coils and filters or in ducts and systems.

Key Features:

Differential pressure (manometer) measures static pressure, air flow, and volume flow (with Pitot tube not incl.)
Measures manifold pressure and pressure drop across filters and coils and has measurement menu in
App that includes pressure drop alarms
Easy configuration and calculations for volume flow (enter pitot tube factor and dimensions easily)
Magnetic back holds instrument for hands-free operation

14,350 din. bez PDV-a

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Testo 405i – Hot-wire Anemometer Smart and Wireless Probe

The testo 405i Smart Probe hot-wire anemometer is a wireless instrument for measuring air flow velocity, temperature, and volume flow. It is equipped with a telescopic shaft which extends to 15” for easy in-duct testing. You can reliably determine timed and multipoint flow traverses.

Key Features:

Measures air velocity, volume flow, and temperature
Measures in-duct air flow and automatically calculates volume flow (enter duct dimensions simply)
Small dia. (<0.5”) and 15” telescopic shaft length is ideal for in-duct flow averaging and timed traverse
Perform air duct leakage tests

14,250 din. bez PDV-a

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Testo 115i – Pipe-clamp Thermometer Smart and Wireless Probe

The testo 115i Smart Probe is a pipe-clamp probe that measures temperature in pipes more accurately than thermocouples because of the superior NTC temperature sensor technology. The exclusive Testo probe design grips pipes up to 1.5” and maintains critical contact between probe and pipe surface to derive the best readings.

Key Features:

Measures temperature of pipes in heating and cooling systems
Use with testo 549i Refrigeration Pressure Probe to calculate superheat and sub-cooling
Quickly identify temperature changes by monitoring real-time trending and data logging
115i NTC temperature sensor is more accurate and stable than thermocouples

8,590 din. bez PDV-a

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testo 830-T1 – Infrared thermometer

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.

Product benefits:

infrared thermometer for non-contact surface temperature measurements
digital non-contact thermometer suitable for measuring body temperature (brochure)
10:1 optics and high resolution processor for accurate measurement results
Easy to use thanks to the gun-style design
Adjustable emission level

8,590 din. bez PDV-a

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Testo – Laboratorija d.o.o. Beograd

Testo 521-3 – Differential pressure measuring instrument (up to 2.5 hPa)

Izdvojeni Proizvodi

testo Smart Probes AC & refrigeration test kit

testo 410 i – Vane Anemometer Smart and Wireless Probe

Testo 905i – Thermometer Smart and Wireless Probe

Testo 805i – Infrared Thermometer Smart and Wireless Probe

Testo 605i – Thermo-hygrometer Smart and Wireless Probe

Testo 549i – Refrigeration Pressure Smart and Wireless Probe

Testo 510i – Differential Pressure Manometer Smart and Wireless Probe

Testo 405i – Hot-wire Anemometer Smart and Wireless Probe

Testo 115i – Pipe-clamp Thermometer Smart and Wireless Probe

testo 830-T1 – Infrared thermometer

Online request for calibration, you can fill in here