How much does the broadcast detection field strength meter cost

Main functions: * Level measurement * Channel scanning * Spectrum scanning * Channel search * Create multi-user channels * File management * Screenshots * Intelligent power management

. technical indicatorsFrequency measurement range: AM 522 KHz~1710 KHz FM 87 MHz~108 MHz Frequency accuracy: 50 × 10 − 6 (20 ℃± 5 ℃) Frequency resolution: AM 1kHz FM 10kHz Level test Level measurement range: 20 dB μ V~120 dB μ V Level accuracy: Level ± 1.5dB (20 ℃± 5 ℃) ± 3dB (-10 ℃～ 40 ℃) Level resolution: 0.1dB Input impedance: 50 Ω Frequency spectrum scanning bandwidth: AM 42kHz, 314 kHz, 628kHz, FULL. FM 3.14 MHz、6.28MHz、12.56 MHz、FULL。 Level scale: 1, 2, 5, 10, 20 dB μ V/grid Other audio output: speaker, headphone jack Volume: about 195mm × 152mm × 82mm Weight: about 1kg Display: large screen with backlight LCD (320 × 240) Power supply Battery: 7.4V/2.5Ah Lithium battery charger: A C 90V~240V 50/60 Hz Working time: average 5-6 hours (fully charged state) Charging time: about 5 hours