This DIN-rail multi-function digital meter can measure altering current voltage, current, active power, power factor, frequency and electric energy Adopts colorful LCD display, large font, full-view, you can see the data clearly Two types optional, you can choose AC40-300V and AC250-450V according to your demands Wide applications, suitable for chemical industry, power station, automation equipment, DOS system, electromechanical device and etc You can have a try Features:Multi-function, which can be used to measure altering current voltage, current, active power, power factor, frequency and electric energy Adopts colorful LCD display, large font, full-view, you can see the data clearly Two types optional, you can choose AC40-300V 100A and AC250-450V 100A according to your demands AC40-300V for measuring AC110V or AC220V household electricity AC250-450V for measuring AC380V three-phase electricity Easy installation, din rail mounting design, simple and convenient Wide applications, suitable for chemical industry, power station, automation equipment, DOS system, electromechanical device and etc Specifications:Name: Energy MeterMaterial: plasticsType: AC40-300V 100A, AC250-450V 100A (optional)Current: AC0 00-100 0AFrequency: 4 5 0Hz-6 5 0HzActive power: 0 0-30000W(AC40-300V), 0 0-45000W(AC250-450V)Electric energy: 0-99999kwhPower factor: 0 00- 1 00PFTesting speed: 2 times per secondItem size: 54 x 64 x 80mm or 2 13 x 2 52 x 3 15inPackage size: 85 x 65 x 60mm or 3 35 x 2 56 x 2 36inPackage weight: 150g or 5 29ouncePacking List:1 x Energy Meter About shlpping: All items will be shlpped within 3 business days after the payment is received Most times you will receive them within 8-12 days then The specific delivery time is depend on circumstances Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping Thanks for your cooperation and we'll make you feel satisfied