AstroAI AM33D Digital Multimeter 2000 Counts AC DC Voltage Current Resistance Diode Continuity Tester

The AstroAI AM33D Digital Multimeter is a practical handheld electrical testing instrument suitable for technicians, students, electronics hobbyists, automotive users, and general maintenance work. It features a 2000-count digital display and manual range selection, allowing users to measure DC voltage, AC voltage, DC current, and resistance across multiple selectable ranges. The meter is also equipped with diode testing, audible continuity testing, data hold, backlight, and square-wave output, making it useful for a wide variety of basic electrical and electronics applications. The AM33D supports DC voltage measurement up to 600V, AC voltage up to 600V, DC current up to 10A, and resistance measurement up to 200 MΩ according to AstroAI’s current manual. It uses a 9V 6F22 battery and has a sampling rate of approximately three readings per second. Its compact body and straightforward rotary selector make it suitable for checking batteries, electrical wiring, power supplies, electronic circuits, household appliances, automotive electrical systems, and educational electronics projects. Key Features: • 2000-count digital multimeter • Manual range selection • Measures DC voltage up to 600V • Measures AC voltage up to 600V • Measures DC current up to 10A • Resistance measurement up to 200 MΩ • Diode testing function • Audible continuity testing • Data Hold function • Backlit digital display • Square-wave output function • Approx. 3 readings per second • Powered by a 9V 6F22 battery • Compact handheld design • Suitable for electronics, automotive, maintenance, laboratory, and DIY applications