Features: 1. Onboard ADS1263 chip, low noise, low temperature drift, 10-channel 32-bit precision ADC (5-channel differential input), 38.4kSPS Max sampling rate 2. The chip comes with 24-bit auxiliary ADC, internal ADC , IDAC, 2.5V internal reference voltage, 8 multiplexed GPIO, (32 times Max) 3. The on-board pin header package input interface can connect to analog signals, compatible with the micro-snow sensor interface standard, which is convenient to connect to various analog sensor modules 4. The input interface of the on-board terminal package can be connected to analog signal and analog power supply, which is convenient for use in various occasions 5. The on-board pin header package control interface can access control signals, which is convenient for using devices other than to control this module. On-board three-wire RTD (resistance temperature detector) circuit, by welding 0R resistors, it is convenient to use three-wire RTD for measurement Specification: Resolution: 32 Bits color: blue Material: PCB Number of input channels: 10 Sampling rate (Max): 38.4 kSPS multiple (Max): 32 Interface type: SPI Architecture: - Input Type: Differential, Single-ended Reference Voltage: Internal, External Input voltage range (Max): 2.5V, 5V Input voltage range (Min): -2.5V, 0V Product size: 65 x 30.5mm Package Contents: 1 x Expansion Board Module 1 x RPi copper pillar package 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.