Smart RF Counter 30MHz - 2.8GHz. 7-digit liquid crystal display. Frequency counter for digital, on/off keying and analog signals with a minimum pulse width of 250µS. Ultra-sensitive, synchronous detector - 16-section bargraph to show RF signal strength (–35dBm to 0dBm). Two range positions - the 1GHz position for frequencies between 30MHz and 0.8GHz and the 2.8GHz position for frequencies between 500MHz and 2.8GHz. Squelch adjustment for input signals. Hold switch to lock display. Low battery indicator, low power consumption (average 5 hour battery life).