• Highly sensitive, high-precision meter for measurement accuracy in seven frequency ranges covering 1.8-500MHz
• Impedance measurements:  12.5-300 ohms
• Digital readout accurate to 1kHz
• Low battery warning:  Decimal point will blink
• Operates up to 14 hours from six AA cells (not included) or from an external 8-12VDC 200ma power source (DC cable included)
• VSWR Range:  1:1 to infinity
• Size:  3.3 x 6.9 x 2.5 inches (80x170x60mm)
• Weight:  28 oz (800g)

Some have questioned why the CAA-500 does not measure reactance, but only displays overall impedance.

Reactance is not required to make antenna adjustments. A frequency sweep of the SWR will tell the user whether the antenna driven element being tested is too long or too short.

The CAA-500 provides the most usable information in a concise and accurate manner, and is perfect for the typical amateur radio operator.