This single phase AC frequency meter can quickly measure the frequency with high accuracy. With embedded design， it is easy to install.<br><br><strong>Features:</strong><br>Digital single phase frequency meter with high accuracy measurement. ?<br>Display the frequency value by LED digital tube.<br>4 keys to operate， easy to use.<br>Easy installation way: embedded.<br><br><strong>Specifications:</strong><br>Rated Voltage: AC220V<br>Frequency: 45-65Hz<br>Frequency Accuracy: ±0.02Hz<br>Overload: Continuous: 1.2times; Instantaneous: 2times/s<br>Power Consumption: !#!lt!*!1VA/Phase<br>Working Temperature: -10 ~ 55°C<br>Opening Size: 91 * 91mm<br>Item Size: 9.6 * 9.6 * 4.2cm / 3.78 * 3.78 * 1.65in<br>Item Weight: 199g / 7.01oz<br>Package Size: 11.5 * 10.5 * 5cm / 4.53 * 4.13 * 1.97in<br>Package Weight: 238g / 8.40oz<br><br><strong>Package List:</strong><br>1 * Frequency Meter<br>1 * User Manual