Digital Multimeter with Buzzer Output Voltage Ampere Ohm Tester Probe DC AC LCD Overload Protection (Yellow) Color: Yellow Material: ABS Size: 124×69×24mm LCD Size: 49x16mm Max Display: 1999 Diode Test: Yes Transistor Test: Yes Continuity Buzzer Test: Yes (unlike other low-priced DT830B products which lack a buzzer) Safety Assurance: Overload protection function (other low-priced products lack this function) Output: Yes Power Supply: One 9V 6F22 battery Product Weight: Approximately 128g Standard Accessories: Meter, test lead, multi-function socket, manual (battery not included) DCV: 200m-2000m-20-200-1000V ±0.5% ACV: 200-750V ±1.0% DCA: 20u-2000u-20m-200m-10A ±1.8% Resistance: 200-2000-20K-200K-2000KΩ ±1.0% Simple and easy to use, suitable for beginners. Features double fuse protection, safe and reliable. 3 1/2 Digital LCD display, maximum display 1999. Diode and transistor testing, continuity and buzzer measurement. Comes with test probe leads, wide range of applications. Includes buzzer, pocket-sized and easy to carry, cost-effective.