The moisture meter can quickly measure the moisture content of the grain. 1. Designed do measure the frequency and power of radio equipment such as walkie-talkies and car radios. 2. When using an external antenna, the frequency can be measured without contact. 3. Built-in fictional load, easy to use, more reliable test results. 4. High quality and high efficiency. Comfortable and highly reliable. 5. Professional production, stable performance and high reliability. Specification: Item Type: do frequency measurement device Material: ABS Color: as picture shown Weight: ok. 155g Frequency Range: 1 MHz-2400 MHz RF power range: 0,1 W-50 W Input Impedance: 50 ohm accuracy: frequency is 140 MHz 170 MHz when 400 MHz 470 MHz, /- 10% Response time: 0,2 s. Operating temperature: 040 Current Consumption: About 100mA Automatic shutdown time: 80s List of packages: 1 x do frequency measurement device 1 x Antenna 2 x Connecting Cable 1 x Conversion Interface 1 x Manual Note: