This Grove-Infrared temperature sensor is a non-contact temperature measure model.The sensor is composed of 116 elements of thermocouple in series on a floating micro-membrane having an active diameter of 545μm and with blacken surface to absorb the incident thermal infrared radiation, which induces a voltage response at output terminals. Features Grove compatible interface Wide supply voltage range: 3V~5V Zero drift amplify current Power consumption: less than 0.6mW Temperature measure range: -10~100°C Measure accuracy: ±2°C Nominal measure distance:9CM 2.0cm x 4.0cm Grove module Application Ideas Motion sensor Thief-guarding System Switch Industrial automation Body distance check For all Grove users (especially beginners), we provide you guidance PDF documents. Please download and read through Preface - Getting Started and Introduction to Grove before your using of the product. Documents Please visit the wiki page for more info about this product.