Maintaining The Product - TESTO 315-4 Instruction Manual

7 Maintaining the product

7 Maintaining the product
Charging the rechargeable battery
1. Connect the mains unit connector to the instrument's micro
USB socket.
2. Connect the mains plug to the mains socket.
The charging process will start automatically. Charging is indicated
by a change in the battery icon segments.
battery is fully charged.
Cleaning the instrument
> Do not use any aggressive cleaning agents or solvents! Mild
household cleaning agents and soap suds may be used.
16
lights up when the