AC Needle-indicator frequency meters

AC needle-indicator frequency meters provide accurate direct frequency readings on AC systems with a 230V supply. With compact dimensions (72x72 mm), these frequency meters have a 45-55 Hz scale with a 90º amplitude and an accuracy class of 1.5. Designed for vertical mounting, they offer IP54 front protection and IP20 rear protection (without terminal covers), ensuring reliability in operating environments with temperatures between -25°C and 40°C.