Feature: 1. [PC INSULATED SHELL] Using excellent PC flame retardant materials, high temperature and impact resistance, safe in operation. 2. [DIN RAIL MOUNT] Adopt metal DIN rail installation, with small size and light weight, modular structure for easy maintenance. 3. [COPPER GASKET] The gasket is made of copper material, which has good electrical conductivity and stable performance. 4. [REMOTE CONTROL] 2.4GHz WIFI frequency, remote control via for Tuya APP, which is convenient and efficient in operation. 5. [LCD DISPLAY] The single phase energy meter is a digital LCD display, with low power consumption, easy to observe. Specification: Item Type: Digital Energy Meter Product Material: PC + Copper Product Model: OLDB1-63 Rated Voltage: AC 230V Rated Current: 63A Pulse Frequency: 1000imp/kWh Working Temperature: -45~70℃ Power Consumption: ≤1W Installation Method: DIN Rail APP: For Tuya WIFI Frequency: 2.4GHz Pole Number: 2P. Package List: 1 x Smart Energy Meter4 x Plugs Note: 1. Without switch function. 2. For electricity related maintenance and installation, be sure to ensure that the operators have electrical work qualifications and take necessary power off and insulation protection measures.