Truper MUT-105 Instructivo página 18

Do not use or store the multimeter in environments with high
temperature, humidity, where there are explosive and flammable
products, and strong magnetic fields. The multimeter performance
can be deteriorated after getting wet.
When using the test probes keep your fingers behind the finger guard.
Disconnect the feed circuit and discharge all the capacitors from the
voltage before measuring resistance, continuity, diodes o hFE.
Replace the battery as soon as the battery indicator shows.
When the battery is low, the multimeter may produce false readings,
which lead to electric shock and personal injury.
Remove the connection between the test probes and the circuit being
tested. Turn off the multimeter energy before opening the housing.
When servicing the multimeter, use only spare parts with the same
model number or electric specifications.
To prevent damage or an accident, do not alter willingly the
multimeter internal circuit.
When servicing the multimeter, use a soft cloth and mild detergent to
clean its surface. To prevent the multimeter surface to corrode,
damage or cause an accident, do not use abrasive substances or
solvents.
The multimeter is adequate for indoors use.
Turn off the multimeter when not in use and remove the battery when
idle for a long period of time. Check the battery frequently. batteries
may leak when not used for long periods of time. Replace the battery
immediately if leaking. A leaky battery may damage the multimeter.