Product Details DM3B panel header: can be used for DC current and DC voltage
Working power supply: DC5V+10% Working current: less than or equal to 60mA Maximum display: 1999 Measurement accuracy:+0.5% FS Panel size: 79 * 42 * 28mm Hole size: 75 * 39mm Sampling rate: 3 times/second Display digital tube: LED 0.56 inches Zero point display: self stabilizing zero Exceeding limit display: "1- --" Relative temperature: less than or equal to 85% RH