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The B&K Precision Model 1823 Universal Counter is a high-quality lightweight counter capable of frequency measurements from 5 Hz to 175 MHz. It features an eight-digit display which provides up to 0.1 Hz resolution at all frequencies below 10 MHz, a standard imput impedance of 1 megaohm, and 1 Hz resolution at all frequencies to 175 MHz. In addition to frequency measurements, the versatile Model 1823 also provides a number of other useful operating modes. These modes are period mode, frequency ratio mode, time interval mode, totalize mode, and self test mode. Also, a number of signal conditioning controls are provided to prevent mis-counting due to input noise and a hold switch is provided to freeze the display.
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