using high-precision 16-bit ADC chip AD7606 8 analog inputs. 1M ohm impedance.(No negative supply, there is no front-end analog amplifier can be connected directly to the sensor output) the maximum sampling frequency sampling rate of 200ksps. Supports eight sampling settings file (which can effectively reduce the jitter) SPI Interface, or 16-bit bus interface. Interface IO level can be 5V or 3.3V.We AD7606 module factory default is 8080 parallel interface.If SPI interface mode, you need to modify R1 R2 resistor configuration. built-in benchmark a single 5V power supply input range of plus or minus 5V, plus or minus 10V. By IO control. Resolution 16 Parallel Mode Jumper: R1 floating (not stickers), R2 10K resistor paste SPI interface mode jumper: R1 stickers 10K resistor, R2 floating (not stickers) AD7606 configuration is very simple, it has no internal registers. Range and over-sampling parameters are controlled via an external IO. Pulse frequency sampling rate provided by the microcontroller or control. Tip: To facilitate , PCB board analog input front -row pin (2x8/2.54mm pitch ) default not weld. Material: PCB colour: green Package Contents: 1 x DATA Acquisition Module 1 set accessories Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.