Testo | 549i

Refrigeration Pressure Smart and Wireless Probe

Reference : TES549i
Serie : Smart Probes, i series, connected tools
Purchase Order Reference : 0560 1549
Brand : Testo
Sonde de pression de fluide connectée
- Mesure des hautes et basses pressions (HP/BP)
- Installation rapide et facile sans flexible
- Pertes de fluides frigorigènes réduites grâce à un fonctionnement sans flexible
- Etendue de mesure :-1 ... 60 bar
- Application gratuite Testo Smart Probes
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Quick quote for this product
Quick quote for this product

Testo 549 i - 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


Users can read the measurements using the testo Smart Probes App installed on their smart device. The testo 549i easily connects to standard Schrader valves without tools and without hoses.
eliminating any refrigerant loss. The testo 549i works on smart devices with either Android or Apple operating systems at distances up to 60’.

The testo Smart Probes App is a powerful and easy-to-use tool. It allows you to remotely read measurements from up to six (6) Smart Probes and easily document/report the results. Automatic calculations make it a snap!

All measurement data is displayed as instrument readings. tables. or graphs. The measurements can be quickly saved as PDF or Excel files. The App creates custom reports which can be saved and/or shared by email. All your data can be stored and retrieved saving you hours of time
consuming paperwork!

What's included:

testo 549i. Bluetooth refrigeration pressure probe with App. incl. 3 AAA batteries and certificate of calibration


Pressure measurement

Technical data

Measuring range

-14 to +870 psi / -1 to +60 bar


±0.5 % of full-scale value


0.10 psi / 0.01 bar

Probe connection

7 / 16 in. - UNF

Overload rel. (high pressure)

+943 psi / +65 bar

General technical data

Technical data

System requirements

requires iOS 8.3 or newer; requires Android 4.3 or newer; requires mobile end device with Bluetooth 4.0


2 years

Battery type

3 AAA micro batteries

Battery life

150 h

Pressure media


Storage temperature

-4° to 140 °F / -20 to +60 °C


5 x 1 x 1 in. / 125 x 32 x 31 mm

Operating temperature

-4° to 122 °F / -20 to +50 °C

Product Details
41-Standard Manufacturer Warranty 2 YEARS
209-Min measure range (Bar) -1 bar (-14psi)
210-Max measurement range (Bar) +60 bar (+870psi)
211-Max pressure (Bar) +65 bar (+940psi)
212-Resolution (Bar) 0.01 bar (0.1psi)
402-Bluetooth Yes
213-Manometer measuring unit (type) psi | kPa | Bar
36-Additional Characteristics Connected probe (For Smartphone/tablet).Refrigeration pressure probe.
542-Metrology/Quality documentation supplied Verification official report
132-Package includes 549i, 3 AAA batteries, user manual, 1 verification certificate
35-Dimension (HxWxD) (mm) 125x32x31 mm
13-Net Weight nc
654-iOS compatible Yes
655-Android compatible Yes
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