The Digital Multimete BS476830 is a compact, pocket-sized, 3.5 digital LCD screen that is ideal for use in the field, hobby, home and DIY applications. This Multimeter is extremely convenient for the on-the-go professional that needs to do basic measurements. All Purpose Functions - DC Voltage Measurement - AC Voltage Measurement Resistance Measurement - Diode Measurement - Transistor hFE Measurement, 9 Volt Battery Power (included) - Safety-Emphasis Measuring Terminals With One Hand Operation Control And Rational Arrangement Of Range.