Testo 550i – digital manifold

• All activities, from measurement through to documentation, using the testo Smart App on your Smartphone
• The smallest digital manifold on the market
• Maximum reliability thanks to the extremely robust housing with IP54 protection class
• Optionally expandable with testo Smart Probes for temperature, humidity and vacuum

testo 550i – App-controlled digital manifold with Bluetooth and 2-way valve block

• For carrying out exceptionally fast, easy measurements on refrigeration and air conditioning systems and heat pumps
• testo Smart App: Control your servicing and maintenance tasks completely via app and smartphone or tablet, enjoy clearly presented results and digital documentation, set your own favourites, and always have the latest refrigerants
• Maximum reliability and convenient handling in environments that are difficult to access thanks to an exceptionally compact, extremely robust housing with IP54 protection class
• Maximum flexibility for working wirelessly: Bluetooth probes for temperature, pressure and humidity automatically connect to the measuring instrument via the testo Smart App
• Continuously high performance in all conditions: You can depend on this manifold from Testo – it combines proven Testo quality with excellent robustness
  

  Technical Data

  General technical data
  Weight	595 g
  Dimensions	77 x 109 x 63 mm
  Operating temperature	-10 to +50 °C
  Protection class	IP54
  System requirements	requires iOS 12.0 or newer; requires Android 6.0 or newer; requires mobile end device with Bluetooth 4.0
  Product colour	Black
  Auto-off	10
  Battery type	3 AAA micro batteries
  Battery life	130 h
  Data transfer	Bluetooth®
  Radio range	150 m
  Refrigerants in instrument	R407H; R23; R290; R1234yf; R442A; R134a; R123; R452B; R438A; R421A; R453a; R401B; R1233zd; R410A; R407A; R407C; R452A; R401A; R422C; R427A; R422B; R424A; R125; R414B; R404A; R408A; R448A; R422D; R12; R114; R421B; R449A; R409A; R420A; R444B; R32; R454A; R124; R402A; R450A; R407F; R416A; R13; R437A; R1234ze; R454B; R402B; R22; R434A; R454C; R455A; R458A; R500; R502; R503; R507; R513A; R600a; R718 (H₂O); R744 (CO₂)
  Refrigerants update via App	R11; FX80; I12A; R1150; R1270; R13B1; R14; R142B; R152A; R161; R170; R227; R236fa; R245fa; R401C; R406A; R407B; R407D; R41; R411A; R412A; R413A; R417A; R417B; R417C; R422A; R426A; R508A; R508B; R600; RIS89; SP22
  Storage temperature	-20 to +60 °C

  * when not connected via Bluetooth

  Pressure measurement
  Measuring range	-1 to 60 bar
  Accuracy	±0.5 % fs
  Resolution	0.01 bar
  Probe connection	3 x 7/16″ – UNF
  Overload rel. (high pressure)	65 bar