By the transmitter, resistance signal of thermal resistance can convert into 4-20 mA current signal, convenient to use with the computer.Sensor:Pt100Measuring range:-50 to 100 degreesOutput:4-20MAOperating voltage:DC 24VAccuracy:plus or minus 0.2%Due to different batches, the colors of the silk screen parameters on the products are random and cannot be specified.Colour:BlueMaterial:Plastic+MetalSize:45mm diameter(1.77inch)Package Contents:1 x Temperature Transmitter2 x screwsOnly 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.