For engineers who often deal with "electricity", "safety" is always the primary guarantee factor. And a multimeter is a necessary testing tool for electricians, so the safety of using a multimeter is particularly important for frontline engineers. As we all know, a multimeter has a built-in fuse in the current range to ensure that when testing the current, the multimeter is connected in series to the circuit. Once the circuit current exceeds the limit or there is a dangerous current, the fuse can be opened in a timely manner to ensure the safety of the instrument, especially the operators.

1. Rated voltage 1000V, 11A fuse breaking capacity 20KA. The original high-energy fuse can not only blow under continuous rated current, but also immediately blow under high instantaneous current, ensuring fast response and safety

2. Ceramic tube packaging with strong arc extinguishing ability and high reliability. The specially designed original high-energy fuse is filled with sand inside. When the energy and temperature that causes an explosion are generated, the sand melts, absorbs energy, and isolates the air required for explosive combustion

Set the multimeter to the "Ω" position and use only one probe. Insert the plug into the Ω socket and use the tip of the probe to reach into the "A" and "mA/uA" sockets respectively. If there are readings, it indicates that the fuse is in good condition (the "A" socket should read 0-0.5 Ω, and the "mA/uA" socket should read around 10K Ω). If "OL" is displayed, it indicates that the fuse is burnt out.