<p>Quantity: One Piece</p> <p>Pocket Digital Multimeter Auto-off, 3 1/2 digits LCD display, maximum reading 1999, more energy-saving.</p> <p>Auto-ranging, Data Hold, Low Battery Indication, Over Range Indication, Negative Polarity Indication.</p> <p>The Mini Digital DC Voltmeter is a very compact digital multimeter with all the necessary functions. DC/AC Voltage, AC/DC Amps, Ohms and Diodes, Continuity Tests with Tones.</p> <p>Powered by 2 x 1.5V button batteries, LR44 or equivalent, the insulating tape must be removed from the batteries before first use. (not included)</p> <p>High quality, foldable and portable design, small size, stable, accurate and reliable, easy to carry and use.</p> <p>Hint:</p> <p>1. If the device cannot be turned on, please open the back cover to check the battery. (The package contents may not include batteries.)</p> <p>2. Please do not use this device below 0 degrees Celsius!</p> <p>3. If the continuity test does not sound, remember to switch to the correct function.</p> <p>1) Display: 3 1/2 digit LCD, the maximum reading is 1999</p> <p>2) Over-range indication: Only the number "1" is displayed on the screen</p> <p>3) Negative polarity indication: The negative sign "-" is displayed in</p> <p>4) Sampling rate: about 2-3 times/second</p> <p>5) Operating environment: temperature: 0-40 degrees</p> <p>6) Storage temperature: Temperature: -10-50 degrees</p><p>Good quality product</p>