【Accuracy Class 1】The energy meter can directly and accurately measure the active energy of power consumption. 【5+1 digit LCD display meter 】 This LCD display is composed of 5+1 digit display (99999.1 kWh) per stepper motor type pulse register and blue backlight for easy reading. 【Standard 35mm DIN rail installation】Standard 35mm DIN rail installation, comply with DIN EN50022. 【Safety】Extension terminals cover, in order to protect to use safety . This DIN rail electric meter is easy to use. 【Good performance】Automatic detection of load current flow direction. And instructions (A red energy pulse signal when working, if no green power instructions, it means reverse charge flow direction). Product size: 11.6*1.8*3.5cm. Shipping Quantity: 1 piece.