Static Meter: This portable electrostatic field tester measures the electrostatic value of objects and the ion balance of static eliminators without direct contact. Digital Display: The device features a red LCD for positive charge readings and a blue LCD for negative charge, updating values five times per second for easy observation and recording. 0-20KV Usage Guide: The handheld static eliminator is capable of measuring up to 20KV with a working distance of 1 inch. Align the electrometer so that the projections of the two red LED lights overlap for accurate static value readings. Accurate Results: Constructed from anti-static material, this electrostatic field meter includes a built-in grounding clip for reliable measurements. Connect to the dedicated ground wire for precise results. Widely Used: This handheld electrostatic tester is suitable for laboratory research, electronic manufacturing, and the textile industry.