H7EC N No-Input-Voltage Digital Energy Meter Totalizer with 8-Digit LCD Display

LCD Display: This digital electronic meter features an LCD display for accurate readings. Digital Pulse Counter, Accurate Counter: This product counts accurately and reliably. Easy Installation: This electric meter is a standard panel-mounted model, making it an easy-to-install digital meter, saving time and energy. 120V Pulse Meter, Panel Mount: This digital electronic meter is a standard panel-mounted model for easy installation. The R method is external R or manual R. Frequency meter. Includes a built-in lithium battery. The theoretical battery life is up to 3 years, with a long memory time.