User Manual

8 Tips and assistance
16
8 Tips and assistance
8.1. Questions and answers
Question Answer
LED flashes red • Batteries are almost spent.
• Change batteries.
The instrument switches
itself off
Remaining battery capacity insufficient
> Change the batteries.
--- lights up instead of
the measurement
parameter display
• Outside the permissible measuring range.
> Keep within the permissible measuring range.
or
• Sensor is defective
> Contact your testo Service department.
The App cannot be
found in the store
• No correct search terms were entered.
> Enter an unambiguous search term, e.g.: “testo
Smart Probes” or use the link on the testo website.
or
• Your mobile terminal device does not meet the
technical requirements (iOS 8.3 or later, Android
4.3 or later / Bluetooth 4.0 (Low Energy))
> Please check the technical data for your mobile
terminal device
8.2. Accessories and spare parts
Designation Item number
testo Smart Case (Refrigeration) for storing and transporting
2 × testo 115i and 2 × testo 549i, dimensions 250 × 180 ×
70 mm
0516 0240
testo Smart Case (Heating) for storing and transporting
testo 115i, testo 410i, testo 510i, testo 549i and testo 805i,
dimensions 250 × 180 × 70 mm
0516 0270
testo Smart Case (VAC) for storing and transporting
testo 405i, testo 410i, testo 510i, testo 605i testo 805i and
testo 905i, dimensions 270 × 190 × 60 mm
0516 0250