Features:Has high accuracy, measurement range is DC 0-1.00A.Adjustable current and resistance, turn clockwise to reduce current and it can work directly with 0.99A.The product has good stability and strong anti-interference ability.3 digits LED display the measurement, high brightness and easy to read the current at a glance.It is suitable for precision measurement and is widely used in measuring and displaying current parameters of teaching instruments, stabilized voltage power supply, welding machines and mechanical and electrical equipment.Specification:Test currentDC0-1ADisplay 3digits LEDWorking currentandlt 30mAAmmeter range0-0.99AMeasurement rate200mS or time Max. current output0.99AInstallation opening45.5x25.5mmLED colorRed or Yellow (Optional)Accuracy1 percent Working pressure80-106kPaMin. working current4VWeightApprox.24g or 8.5ozMax. working current28VSizeApprox.48x29x22mmWorking temperature- 10 - and 65Working humidity10-80 percent (no condensation)Package List:1 x Digital AmmeterNote:Please allow slight error due to manual measurement. Thanks for your understanding..Please notethat the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.