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= Purchase Link = Multistester: https://bit.ly/3MNBrnn A slim and convenient card-type multitester!! Let's learn how to use it and its super-simple usage for beginners!! 00:00 Introducing a portable, easy-to-use card-type multitester, even for beginners 00:21 How to distinguish test leads (red: positive +, black: negative -) 00:33 How to measure ACV (alternating current voltage): Check outlet voltage and power availability 01:31 How to measure DCV (direct current voltage): Measure battery capacity and voltage 01:50 Criteria for determining battery capacity by voltage (examples of 1.5V and 9V batteries) 02:40 Continuity test function: Check for wire breaks and test connections 03:39 Resistance (Ω) and diode measurement functions explained 05:21 Advantages of owning a multitester and final summary == Video Summary == Q: Is there a specific orientation for plugging the leads when measuring outlet voltage? A: Since ACV has no polarity, you can safely measure the red and black leads by inserting them into either outlet. Q: At what voltage level should a 1.5V battery drop before it needs to be replaced? A: Generally, a battery is good when it's around 1.5V. If it drops below the mid-1.2V range, it's weak. If it drops below 1.15V, it's completely discharged and needs to be replaced. Q: In what situations is the continuity test function useful? A: It's useful for checking if a wire is broken internally, even if it appears to be fine. If you hear a "beep" sound when you touch the leads to each end, it indicates continuity. Q: Why is it a good idea to have a tester at home? A: It can save you unnecessary trouble by allowing you to check the remaining battery life or, if an appliance suddenly stops working, directly test whether the problem is with the outlet or the device.