Measuring range: 0-25 (two gears: 0-5 and 5-25, auto-switching). Resolution: 0.01 (0-5 range), 0.1 (5-25 range). Accuracy: ��1.5% ��0.01 (0-5), ��1.5% ��0.1 (5-25). Measures ESR of electrolytic capacitors and DC resistance (toggle via ON/OFF/ZERO button). Sync detection for short circuits ensures accurate ESR readings. Works in-circuit or off-circuit (5mA current, 100kHz standard frequency). Auto-zero at startup and when switching modes. LCD shows ESR value and probe compensation for precision adjustments. Overvoltage protection included. Features: - Auto/manual shutdown (inactive after ~5 minutes). - Low-voltage warning with 10-second auto-shutdown. - Powered by 3.7V 14500 rechargeable battery (charges in 2-3 hours via 5-6V DC, LED indicators). - Max current: 60mA (3.7V). - Operating temp: 10-40��C. - Plastic housing. Package: 1x ESR tester, 2x test pens, 2x clips, 1x USB cable. Note: Slight color variations may occur due to lighting/screen differences. Measurement tolerance: ��1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store