Feature:1. 8 IN 1 METER: Voltage V, current A, temperature , power factor PF, power KW, time HD, frequency Hz, electrical energy KWH, multifunctional display, meeting various needs.2. FAST AND ACCURATE: Adopt 32 bit microcontroller, the AC power meter has rapid response speed, equipped with precise current transformer for accurate calculation.3. CLEAR LCD DISPLAY: Regardless of day or night, indoors or outdoors, or even in sunlight, users can clearly see the displayed content through this clear color LCD screen.4. DATA STORAGE: With the function of storing data after power failure, there is no need to worry about losing data with our AC multimeter. The memory data is for 10 years.5. WIDE USAGE: This energy monitor can be used as ammeter, digital voltmeter, power meter and battery capacity monitor. Suitable for various batteries, such as acid batteries, lithium polymer batteries.Specification:Item Type: Digital Voltmeter Ammeter PanelMaterial: PCModel: SPM005Working Voltage: AC60-300VColor Screen Size: Approx. 60x19mm/2.36x0.75in (Display Area)Display Refresh: 3 Times Per SecondVoltage Range: AC60-300VTemperature Range: -50.0 to +200.0Power Range: 0.01W to 99999KWFrequency Accuracy: 0.01HzElectric Energy Range: 0.01kWh to 99999kWhTime Range: 0.01H (Hour) to 99999D (Day)Memory Data: 10 YearsEnvironmental Temperature: -10 to +60Humidity: 85% RH (Without Condensate)Overall Size: Approx. 78x43x23mm/3.07x1.69x0.91in.Package List:1 x Digital Voltmeter Ammeter Panel1 x Current Transformer1 x User Manual