Descriptions:This instrument is an instrument developed for electronics engineers developers electronic repair production plants and enthusiasts.It is very easy to plug-in and SMD devices also can different kinds of diodes triodes thyristors MOSFET enable to analysis the device type the polarity of the pin the output HFE the valve voltage the junction capacitance of the FET.Support calibration function you can choose to have clips.:Resistance: 0-50M. Resolution: 0.01.Capacitance: 25pf-100mf. Resolution: 1pf.Inductance: 0.01mH-20H. Resolution: 0.01mH.Measuring capacitance ESR resolution: 0.01.Things to note:Before ing the capacitor be sure to discharge it otherwise it may damage the internal circuit.If using DC supply please choose DC 9V - 12V adapter (including 9V and 12V).Can be powered by a 9V 6LR61 battery (not included) when the battery power is under 6V please replace a new one.How to use instructions:Push "POWER / " to power on and start a multiple measurements can be repeated by this key auto power off 20 seconds after measurement.Provide three kinds of socket each socket pin 1 pin 2 and pin 3 are connected.There is a table "typical ESR value of electrolytic capacitor" at the back it is for guiding only these are typical value for standard grade electrolytic capacitor at room temperature.Calibration:Short the pin 1 2 3 together and push "POWER / " button then the screen prompts to enter calibration push the button again within 2 seconds to confirm. Few seconds latter the screen prompts to release pin 1 2 3 release them and wait for calibration finish.Package weight: 0.25 kg Package Size(L x W x H): 17.50 x 10.00 x 6.00 cm / 6.89 x 3.94 x 2.36 inches. Origin:CN(Origin) DIY Supplies:ELECTRICAL AC Voltage:N/A Display Type:Digital Display DC Voltage:N/A AC Current:N/A Measuring Resistance Range:0-50Mohm Certification:CE Certification:RoHS DC Current:N/A Measuring Capacitance Range:25pF-100mF Operating Mode:Auto Range Model Number:ESR02 pro Measuring Inductance Range:0.01mH-20H Dimensions:14*8*5cm Operating Temperature:0 - 40 ESR Parameter table:YES Left and right hand operation mode:YES Component groove:YES SMD Component tester:YES Capacitive discharge device:YES Test line interface:YES esr continuous measurement function:YES Inductor:0.01mH-20H Capacitor ESR:2uF-50mF