Founded in 1995, China Dongda Power Industry Co., Ltd. is one of the few frequency generator manufacturer and distributor in China that has patents on the generator, motor, power supply, engine, alternator, diesel and gearmotor design, supply and sale. Our custom frequency generators has obtained the certifications of ISO9001-2000, GS/TUV, CE, VL, EPA, QHS, SON, CAP and SRS and we have won EPA 2005 Motor Year Certification. Our 30 QC staff carefully performs inspections at every stage of production, from the time we receive raw materials to packaging. Noise, power, and stability are tested to ensure that our engines can endure 580 hours of constant use. We also can design and deliver OEM/ODM samples in one month.

Eight different models can produce frequencies from 0.01 Hertz to 15 megahertz. Digital readout displays precise frequency with 5 decimal place accuracy (20 ppm). Waveform can be square, sine, pulse, triangular and can be amplitude or frequency modulated. Both of the above generators above can drive a light or laser pen or can output to skin or hand-held electrodes. They can have option of an internal speaker which gives an audible output of chosen frequencies. Outputs can be chosen to be Biphasic (alternately positive then negative) or Monophasic (all positive polarity as recommended by Dr Clark). We offer several qualities of frequency generators from the simplest fixed frequency (32 kilohertz) model to our advanced Crystal controlled "Frequency Tuner". The highly visible 8-digit LED display shows output frequency and amplitude simultaneously.

Don't miss this rare opportunity to buy this hi accuracy, multi-form function generator with 8-digit LED display, excellent for lab technicians and professionals in electronics industry. The VC2002 is a versatile function generator that allows continuous and accurate adjustment of frequency in 7 ranges, continuous adjustment of amplitude in three ranges (non attenuated, 20 dB attenuation, and 40 dB attenuation), continuous adjustment of duty cycles from 20% to 80%, and is capable of producing high accuracy sine waves, triangular waves and square waves. *Output frequency in 7 ranges: 1) 0.2-4 Hz; 2) 4-40 Hz; 3) 40-400 Hz; 4) 400 Hz - 4 KHz; 5) 4-50 KHz; 6) 50-300 KHz; 200 KHz - 2 MHz *Output impedance: 50 Ohm *Output signal form: sine, triangle, and square wave in three ranges (1 Vp-p to 10 Vp-p; 0.1 Vp-p to 1 Vp-p; 10 mVp-p to 100 mVp-p) *Function duty cycle: 20% to 80% *Frequency stability: +/- 0.1%/min *Signal accuracy: sine wave distortion < 2%; triangle wave linearity > 99%; square wave rise and fall edge < 100 ns *Power consumption: less than 15W (110V AC plug) *Working temperature: 0-40 oC *Size: 270 X 215 X100 mm *Weight: 3.5 Lbs

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