The ZOYI ZT-203 Pen Multimeter is a simple and portable tool for electrical testing. It measures AC/DC voltage, resistance, and more with a 6000-count display. Features include True RMS for accurate readings, auto-ranging, and non-contact voltage detection (NCV). Its compact design has a backlit screen and flashlight for easy use in dim spaces. Safe to use with a CAT III 600V rating, it’s perfect for professionals and DIY users.