Why Does the ANENG Digital Multimeter Backlight Require a Long Press Instead of a Switch?

You just bought an ANENG multimeter, and you press the backlight button—nothing happens. Then you hold it for a second, and the screen lights up. That long-press design isn’t a mistake; it’s a deliberate safety feature. It prevents accidental toggling while you’re probing live circuits, a common cause of frustrated readings and wasted batteries. Fix … Read more