Display: LCD1602 LCD English display. High frequency accuracy, frequency accuracy can reach 10 ~ 6 levels; high frequency resolution, full range frequency defense rate 10MHz. Infinite line restrictions, the full range of frequency regardless of gear, direct digital settings.
eBay
7.83Hz Schumann Wave Generator DC5V USB Ultra-low Frequency Sine Pulse Signal Generator 0.1Hz~30000Hz Adjustable Audio Resonator
Aliexpress UK
1 XR2206 High - for precision signal generator. It can produce sine waves, triangular waves, Square waves. WaveForms: Square, Sine & Triangle. Sine wave：. The frequency can be adjusted from 1Hz-1MHz, the amplitude of the frequency can be adjusted.
eBay
DC 5V 0.01Hz~100000Hz Adjustable Frequency Schumann Wave Generator Sine Wave Signal Generator Micro USB Electronics
Aliexpress UK
Scanning : linear scanning, pairing scanning. High frequency accuracy, frequency accuracy can reach 10 ~ 6 levels; high frequency resolution, full range frequency defense rate 10MHz. Infinite line restrictions, the full range of frequency regardless of gear, direct digital settings.
eBay
PWM Square Wave Rectangular Wave Signal Generator Driver Module Pulse Frequency Duty Cycle Adjustable DC Frequency Tester
Aliexpress UK
ADF4351 35M-4.4G RF signal generator PLL sweep generator touch screen. Output frequency range: ADF4351: 35M-4.4G. Default±50ppm 25M imported active for crystal oscillator. Provide PDF circuit diagram and for STM32 test program.
eBay
DC 9-12V XR2206 Signal Generator Sine/Triangle/Square Output Signal Source 1Hz-1MHz Adjustable Frequency Oscillator
Aliexpress UK
1 XR2206 High - for precision signal generator. The frequency can be adjusted from 1Hz-1MHz, the amplitude of the frequency can be adjusted. Frequency: 1Hz -1MHz. Amplitude: 0-3V at 9V DC Input. Amplitude: 8V (No load) at 9V DC Input.
eBay
FG-100 FG-200 DDS Function Signal Generator Frequency Counter 1HZ-500KHZ 0.01Hz - 500KHz Signal Source Module with Antenna
Aliexpress UK
Si5351-2VFO-150 Signal Generator 2 CH Signal Source VFO-5351A V1.03 Square Wave. The keyboard has 15 ppt buttons. There are 10 digital buttons from 0 to 9, and the"++" and"--" buttons are used to adjust the frequency and generate transmit output.
eBay
FG-200 DDS Function Signal Generator Frequency Counter 0.01Hz - 500KHz Signal Source Module Sine+Square+Sawtooth Waveform
Aliexpress UK
1 XR2206 High - for precision signal generator. The frequency can be adjusted from 1Hz-1MHz, the amplitude of the frequency can be adjusted. Frequency: 1Hz -1MHz. Amplitude: 0-3V at 9V DC Input. Amplitude: 8V (No load) at 9V DC Input.
eBay
FG-100 1HZ-500KHZ DDS Function Signal Generator Frequency Counter Signal Source Module Sine+Square+Triangle+Sawtooth Waveform
Aliexpress UK
Adopts with clear acrylic shell, the signal generator is very beautiful and practical. The signal generator is a kit and needs to be assembled by yourself. 1 x Signal generator parts. Temperature drift of 200ppm/°C. SYNC output with sync signal.
eBay
FG-100 DDS Function Signal Generator Frequency Counter 1Hz - 500KHz Signal Source Module Sine+Square+Triangle+Sawtooth Waveform
Aliexpress UK