Check the listing for details. Sine Wave Square Signal Generator DDS Function Triangle Low Frequency ECG DIY. Condition: New. Listed at 19.48 USD. Sine Wave Square Signal Generator DDS Function Triangle Low Frequency ECG DIYFeatures: LCD display to indicate the data accurately. Can output sine/triangle/square/forward and reverse sawtooth/ECG/Noise waveforms. DDS Frequency Range: 1Hz~65534Hz. Can section into the value: 1, 10, 100, 1000, 10000Hz. DDS signal amplitude of the offset amount can be adjusted separately by two potentiometers. The power will restore the last used configuration automatically. Specifications: Material: FR4 + Acrylic Operating Voltage: DC9V DDS Frequency Range: 1Hz~65534Hz Offset: 0.5pp~5Vpp Output Amplitude Range: 0.5~14VPP Size: (Approx.) 12 * 8.5 * 3.2cm / 4.72 * 3.35 * 1.26in Weight: about 160g Package List: 1 * Signal Generator Note: The instrument will be damaged if the voltage is higher than 9V. Kindly Note: If you need a huge quantity, contact us to get more competitive offer. Shipping and Payment: Payment : Paypal Shipped within 2 business days once payment done. 10~27 days to reach you. Refund and Guarantee: 30 Days Money Back Guarantee 180 Days - Free Exchange Please contact us with any questions or concerns,we will solve it until you satisfy.