Description
Specifications Table
Product Material – High-impact ABS plastic with reinforced circuitry
Grade – Laboratory/Industrial Grade
Application – AC voltage measurement, signal testing, calibration
Measurement Range – 0-200mV to 0-750V AC (auto-ranging)
Accuracy – ±0.5% of reading ±2 digits
Display – 3.5-digit LCD with backlight
Input Impedance – 10MΩ
Power Supply – 9V battery (included)
Product Overview
The Digital AC Millivoltmeter is engineered for precise low-voltage AC measurements in laboratory and industrial environments. Featuring auto-ranging capability from 200mV to 750V AC, this instrument delivers ±0.5% accuracy with a high 10MΩ input impedance to minimize circuit loading effects. The 3.5-digit LCD display with backlight ensures clear readability in various lighting conditions, while the durable ABS plastic housing protects against electrical interference and physical damage. Designed for long-term reliability, it includes overload protection and battery-saving auto-power-off functionality. The unit operates on a standard 9V battery (included) and offers simple one-handed operation with a rotary function switch. Its compact, portable design makes it ideal for bench-top use or field applications where precise AC voltage measurements are critical. The millivoltmeter’s high sensitivity and stability make it particularly suitable for signal testing, calibration work, and troubleshooting low-voltage AC circuits.
FAQs
1. What is the minimum AC voltage this millivoltmeter can accurately measure?
The instrument can reliably measure voltages as low as 200mV AC with its ±0.5% accuracy specification, making it suitable for sensitive low-voltage applications where precision is critical.
2. Can this digital millivoltmeter be used for DC voltage measurements?
This model is specifically designed for AC voltage measurements only. For DC applications, you would need a dedicated DC millivoltmeter or a multimeter with DC measurement capabilities.
3. How long does the battery typically last under normal usage conditions?
With regular use, the included 9V battery typically lasts 40-60 hours. The auto-power-off feature helps conserve battery life when the meter is not in active use.
4. What safety features are incorporated in this millivoltmeter?
The unit includes input overload protection up to 1000V AC/DC, reverse polarity protection, and a fused input circuit to prevent damage from accidental misuse or voltage spikes.
5. Is this millivoltmeter suitable for measuring audio frequency signals?
While it can measure AC voltages in the audio frequency range (20Hz-20kHz), the response time may vary. For specialized audio applications, consider using an instrument with specified frequency response characteristics.
