Tekpower TP7030 Hybrid Dual Display 8-Function 20-Range Analog & Digital Multimeter with Battery Tester, High Accuracy ,Strong Rubber Case Protection Hybrid Dual Display Analog and Digital Multimeter with Strong Rubber Holster for Protection Battery Tester for 1.5V and 9 V Batteries High Accuracy Analog Meter and 3 1/2 Digits Multimeter with Both AC and DC Voltage Zero Adjustable Analog Multimeter easy calibration 1 Year Factory Warranty