Features: Highly sensitive pointer, responsive and accurate indication Digital dial, directly displaying digital information 0 adjuster to adjust pointer deviation caused by vibration Accurate measurement with small error and responsive pointer Pointer type voltmeter, sensitive response, clear scale, accurate indication Computer printed scale dial, the scale is clear and not easy to fall off, the dial font is clear, neat and beautiful The shell is made of ABS flame-retardant material, which is resistant to high and low temperatures, wear-resistant and anti-corrosion. It is safer to use electricity and has a long service life. Simple structure, screw wiring, fixed vertical installation, simple and convenient The manual has been upgraded, scan it with your mobile phone, and you can check the product description at any time Widely used in industrial and mining enterprises, metallurgy, electric power, complete sets of equipment and various electronic control devices Specifications: Part Name: Analog DC Ammeter Color: as show Material: ABS Name: DC Ammeter Model: SO-45 DCA Accuracy level: 2.5 Response time: ≤4S Frequency: 50/60Hz Measuring range: 1A~30A (direct access); 30A~500A*/1000V (external device) Note: The maximum through-flow of the ammeter is 30A. If it exceeds 30A, an external shunt is required. Ambient temperature:-20-50℃ Size: 47*47mm Installation hole diameter: 45mm Package Contents: 1*Pointer type DC Ammeter Note: 1. If the pointer does not reach 0 degrees, please use a flat-blade screwdriver to adjust the 0 adjuster in the lower right corner and return the pointer to 0 degrees. Then it can work normally. 2. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 3. Please allow slight manual measurement deviation for the data. So-45 Pointer Type Dc Ammeter Analog Ammeter Pointer Panel Meter Current Meter Made of high quality material, durable and practical to use. Perfect functions,give you a wonderful experience. Every customer can enjoy 30 days refund or replacement for Damaged/Quality Issues. If you have any questions, please feel free to contact us, we will solve it for you.