TESTO 420 - Available Accessories and Parts

9 Tips and assistance
24
Question Possible causes/solution
• [►, ■] on the
instrument does not
work.
• Warning message
Function not available
in Bluetooth mode.
• Bluetooth connection is active, the
instrument is connected to a
Tablet or Smartphone via
Bluetooth and the App is active.
• Fully close the App or end the
Bluetooth connection.
9.2. Accessories and spare parts
Description Article no.
testo 420 differential pressure measuring
instrument (stand-alone device)
0560 0420
Flow hood 360x360 mm with bag 0554 4200
Flow hood 305x1220 mm with bag 0554 4201
Flow hood 610x1220 mm with bag 0554 4202
Flow hood 915x915 mm with bag 0554 4203
Fabric cover for the hood 610x610 0400 4200
Aluminium frame for the hood 610x610 0440 4204
Tripod, extendable to 4 m 0554 4209
Connection hose, silicone, length 5 m,
maximum load capacity 700 hPa (mbar)
0554 0440
Connection hose, silicone-free, for differential
pressure measurement, length 5 m,
maximum load capacity 700 hPa (mbar)
0554 0453
Pitot tube, length 500 mm, Ø 7 mm, stainless
steel, for measuring flow velocity
(Connection hose required)
0635 2045
Pitot tube, length 350 mm, Ø 7 mm,
stainless steel, for measuring flow velocity
(Connection hose required)
0635 2145
Pitot tube, 1,000 mm long, stainless steel,
measures flow velocity
(Connection hose required)
0635 2345