Type Temperature & humidity Applications Ideal for industrial automation, HVAC systems, and other temperature-sensitive applications On-board modules MCP6022 - rail-to-rail operational amplifier from Microchip Key Features Easy integration of an NTC thermistor, rail-to-rail input/output amplifier for signal amplification, dual signal processing, high-current relay for controlling external loads, orange LED for easy monitoring of relay activation state, and more Interface Analog,I2C Feature ClickID Compatibility mikroBUS™ Click board size L (57.15 x 25.4 mm) Input Voltage 3.3V or 5V