This handheld frequency counter has built-in microprocessor and measure very wide frequency range from 10 Hz to 2.5 GHz with 0.1 Hz resolution in the low frequency range. It also features data hold, relative mode, period and data memory for maximum, minimum and average. Its high accuracy and sensitivity makes it ideal for field service and benchtop use.

Frequency Range	10 MHz: 10 Hz - 10 MHz 500 MHz: 10 MHz - 500 MHz 2500 MHz: 50 MHz - 2500 MHz Period: 10 Hz - 10 MHz
Display	8 digits large 0.5" LCD
Sensitivity	50 mVrms
Gate Time	Fast & Slow, 0.5 sec.-11 sec.
Frequency Accuracy	±(10ppm+1dgt)
Over-Input	500/2500 MHz ranges: 5Vp-p 10 MHz range and Period: 250Vp-p
Input Impedance	500/2500 MHz ranges: 50Ω 10 MHz range and Period: 1 MΩ
Power Supply	4 X 1.5V AA battery or 9V DC adapter, 300mA, center positive (not included)
Power Consumption	100mA, 500/2500 MHz ranges 45mA, 10MHz & Period Automatic power off
Dimension	6.8" X 3.1" X 1.4"
Weight	12 oz.
Accessories	Telescoping RF pick-up antenna AT-20 $8.00. Direct probe with BNC connector & alligator clip pairs PB-21 $7.00 Deluxe carrying case $6.00

Service and Instruction Manual