1 pc digital LCD electric energy meter phase line electric meter kilowatt-hour digital meter single-phase rail type electric energy meter meter 4P electricity meter Multiple Advantages: Convenient meter reading, high reliability, small size, light weight, beautiful appearance, advanced technology, etc. This meter is suitable for measuring AC single-phase effective electric energy with a rated frequency of 50Hz, and it is used for indoor fixed installation. Applicable Environment: Suitable for ambient temperature below -25°C ~ +55°C, relative humidity below 95%, no corrosive gas in the air, avoid dust, mold, salt spray, condensation, insects, etc. Powerful Functions: Good anti-electromagnetic interference, low power consumption, high precision, high overload, high stability, anti-theft, long service life, standard 35mm DIN-rail installation. Customer Service: If you are not satisfied with the product we received, please contact us and tell us the problem, we will solve it for you first. Features: Model DDS548C Single-phase energy meter Base current 30 (A) Accuracy Class 1 Reference Voltage 230 (V) Impulse Rate 1000imp/kwh Display Mode Meter Frequency 50 (Hz) Maximum Current 100 (A) Package includes: 1 pc DDS548C model