1.Multimeter Over load protection:Used the PTC protection circuit for Resistance, frequency measurement Double Current Fuses. High quality ,more Safety. (2) The digital multimeter with large digital display and color coded LED's for battery quick check. (3) As a general measurement tool and widely used in the school, laboratory,factory and other social field.It will be a reliable friend to help you troubleshoot a variety of automotive. (4) The multimeter is small and compact design,comfortable to handle.It is made of suprior material, durable and practical. (5) Electrionic meter can measure AC/DC voltage, AC/DC current, resistance, frequency, continuity, diode and etc.