Feature: The product structure is compact, easy to install, suitable for installation on various types of equipment. High-quality electronic components, stable performance, accurate measurement data. LED digital display, low power consumption and long service life. The red LED display allows the observer to know the change in the measured value more quickly. (Red color can make the senses of human produce a strong feeling) You can DIY modify the digital board meter to allow it to detect the operation of other equipment, such as: electrical equipment, small motors, etc. Specification: Model: 5135A Display Accuracy:0.3% Measuring Accuracy:0.5% F.S2digit Response Time:0.3(s) Display Range:0-1999 Polarity display:"-",Only"-" display (only DC) Display: (14.2mmH)Red LED (14.2mm H) Operation Temp:0-60 Operation Humidity:20-95%RH Power Supply: DC5V0.2V/150mA Installation:Panel Mounting Dimension: W79mm*H43mm*D24mm Package list: 1 * Digital Panel Meter(include wire) Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product. 1The product structure is compact, easy to install, suitable for installation on various types of equipment. 2High-quality electronic components, stable performance, accurate measurement data. 3LED digital display, low power consumption and long service life. 4The red LED display allows the observer to know the change in the measured value more quickly. (Red color can make the senses of human produce a strong feeling) 5You can DIY modify the digital board meter to allow it to detect the operation of other equipment, such as: electrical equipment, small motors, etc.