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 current DC0~1A Display 3 digits LED Working current <30mA Ammeter range 0-0.99A Measurement rate 200mS/time Max. current output 0.99A Installation opening 45.5*25.5mm LED color Red/Yellow (Optional) Accuracy 1% Working pressure 80~106kPa Min. working current 4V Weight Approx.24g/ 8.5oz Max. working current 28V Size Approx.48*29*22mm Working temperature - 10 ~ + 65℃ Working humidity 10-80% (no condensation) Package List: 1 * Digital Ammeter Note: Please allow slight error due to manual measurement. Thanks for your understanding. .Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.