Features Circuit Safety Assurance: Integrates protection against overload, short circuit, phase loss, undervoltage, and more to minimize accidents. Parameters Display: Automatically cycles to show working voltage, current, and real-time residual current values for easy fault diagnosis. Automatic and Manual Operation: Offers both automatic and manual opening and closing functions for user convenience. Fire-resistant PC Material: Shell made of PC material to prevent fire hazards and ensure stability. Convenient Installation: Features a tunnel type wiring port for easy and firm installation, ensuring convenience of use. Specification: Item Type: 2 Phase DIN Rail Voltmeter Material: PC Voltage: 120-300V Current Setting Range: 1A-63A Over, Under Voltage Value: Over voltage adjustable less than or equal to 300V, Under voltage adjustable greater than or equal to 120V Delay Time: 3 to 300s Package List: Item Type: 2 Phase DIN Rail Voltmeter Material: PC Voltage: 120-300V Current Setting Range: 1A-63A Over, Under Voltage Value: Over voltage adjustable less than or equal to 300V, Under voltage adjustable greater than or equal to 120V Delay Time: 3 to 300s Package List 1 x 2 Phase DIN Rail Voltmeter