โวลต์มิเตอร์ดิจิตอล LED, 3 สาย, 0.56 นิ้ว, DC0V-30V, การป้องกันการเชื่อมต่อย้อนกลับ

Features: *The wiring is convenient and simple. It is equipped with three wires, which is convenient and simple in wiring, which is convenient to access the inner line of cars/battery cars/motorcycles. * It has anti -connection protection functions, and the wire connection will not be burned and has a fine -tuning function. Pay attention to the use of the input voltage cannot exceed 30V, otherwise it will be in danger of burning. *Measurement accuracy, the voltage table will automatically move the position of the decimal point according to different measurement voltage. *When the voltage below 10V is measured, two digits are displayed after the decimal point; when the voltage of more than 10V is measured, a digit is displayed after the decimal point. That is, the need to take care of the measurement accuracy of battery users, and can also take care of the need to measure higher voltage. *This voltage meter can be used to measure the voltage of mobile phone lithium batteries, nickel -metal hydride battery packs and other battery packs, as well as voltage of batteries such as motorcycles and cars, and can also be used for other voltage measurement purposes . Specification: Measuring range: DC0.00V-30.0V Power supply range: DC4.50-30V (red), DC4.70-30V (green), DC5-30V (blue) Input: DC30.0V. Note: If the input voltage is higher than 30V, it may be damaged! Allowable error: ±1%; when greater than or equal to 10V, the error is ±0.3V; when less than 10V, the error is ±0.10 Input impedance: >100K ohms Working current: red < 23mA, green < 18mA, blue < 13mA Refresh speed: about 300mS once Display mode: three 0.56" LED digital tube Display color: red, green, blue optional length: 20cm Dimensions: 48 x 29 x 22 mm, length X width X thickness Mounting hole: 46 x 27 mm Net weight: 19g Working temperature: -10℃~65℃ Package included: 1*voltage table