Thank you for purchasing the True RMS 4000 Count Digital
Multimeter from AstroAl. This DMM is battery-powered,
equipped with a 4000-count display and automatic ranging.
This instrument performs AC/DC Voltage, AC/DC Current,
Resistance, Capacitance, Diode Testing, Continuity Testing,
NCV Detection, Live Wire Detection, and Battery Voltage
Testing. Thank you again for choosing AstroAl, if you have any
questions or concerns regarding your product, please contact
us at support@astroai.com.
NOTE: Fully read and understand this manual before using
this Digital Multimeter. If you are a beginner to multimeters,
please read and keep this manual for reference.
WARNING
To avoid possible electric shock or personal injury, and to
avoid possible damage to the Meter or to the equipment being
tested, adhere to the following rules:
• Before using the Meter, inspect the exterior casing. Do not
use the Meter if it is damaged or if all or part of the exterior
casing is removed. Look for cracks or missing plastic. Pay
special attention to the insulation around the connectors.
• Do not use or store the Meter in a high-temperature
environment, do not expose to high levels of humidity, or
near strong magnetic fields. The performance of the Meter
may deteriorate after dampening.
• Inspect the test leads for damaged insulation or exposed
metal. Check the test leads for continuity.
• Pay special attention to the selections when measuring
current and voltage. If you attempt to measure in the wrong
setting, damage can occur to the Meter.
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