Designed for measuring the frequency and power of radio equipment, such as walkie talkie and car-mounted radio device.Built-in dummy load, convenient to use and the testing result is more reliable.With an external antenna, it can only measure frequency with non-contact way.Fequency measurement range: 1MHz-2400MHz. Power measurement range: 0.1W-50W.Ideal tools for signal testing and radio maintenance.Specifications:Frequency Measurement: 1MHz-2400MHzPower Measurement: 0.1W-50WSampling Time: Approx.0.2sWorking Temperature: 0-40 CelsiusCurrent Consumption: Approx.100mAPower Supply: 3 x 1.5V AAA Batteries(not included)Item Size: 9.5 x 5.5 x 2.5cm / 3.7 x 2.1 x 1inItem Weight: 86g / 3.1ozColor: YellowMaterial: Plastic + metalPackage List:1 x Frequency Counter (battery not included)1 x Antenna1 x Pair of Cable1 x User ManualNote:Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.