Order Notice: The A10 product is currently the most cost-effective smart multimeter with a built-in rechargeable lithium battery on the market. S11 has two colors (Black/Red). The S20 product is the highest version of the series, adding EMF detection function. S20 EMF detection multimeter S11 Specifications: Display: 9999 counts. Screen: 3.5 inch. DC Voltage: 0.8V-620V (0.5%+3); Resolution: 0.001V. AC Voltage: 2.2V-620V (0.5%+5); Resolution: 0.001V. Resistance:1-999.9 (2.0%+5); 1k-60M (1.0%+3); Resolution: 0.11. Capacitance: 1nF-999.9nF (6.0%+5); 1uF-99.99mF (3.0%+3); Resolution: 0.001nF. Frequency: 1Hz-1000Hz (1.0%+5) (ACV:2V-10V); Resolution: 0.001Hz. 1KHz-60KHz (1.0%+5) (ACV:10V-620V); Resolution: 0.001Hz. Duty Cycle: 0.1%-99.9% (3.0%+5) (ACV:2V-620V); Resolution: 0.1%. Diode: Auto identify diode if le than 3.0V. V-Alert(non-contact voltage detection): beep alarm sounds. Live Check: alarm beep sounds, LCD screen display stripe. Continuity: If the resistance is le than 30, the beeper sounds. S11 Power: Built-in rechargeable lithium battery. S20 Specifications: DC Voltage: 0.5V-620V (0.8%+3); Resolution: 0.001V AC Voltage: 1.0V-620V (1.2%+5); Resolution: 0.001V Resistance:1-10.0M (1.2%+3); Resolution: 0.1 Capacitance: 0.5uF-1000uF (3.5%+8), 1000uF-6000uF (4.5%+10); Resolution: 0.1uF Frequency: 10Hz-1000Hz (2.0%+10); Resolution: 1Hz Diode: Measure diodes within 1.0V EMF Detect: alarm beep sounds, LCD screen display stripe. Live Check: alarm beep sounds, LCD screen display stripe Continuity: If the resistance is le than 30, the beeper sound S11/20 Package Size: 147*85*42mm. S11/20 Package Weight: 180g Package Includes: 1 * Multimeter. 1 * Test Lead. 1 * English user Manual. 1 * Packing Box. 1 * USB charging cable. 1 * EVA portable cloth bag. 1 * Protective shell.S11/S20