By the transmitter, resistance signal of thermal resistance can be converted into a 4-20 mA current signal, convenient for use with computers. Sensor: Pt100 Measuring range: -50 to 100 degrees Output: 4-20 mA Operating voltage: DC 24V Accuracy: 0.2% Due to different batches, the colors of the silk screen parameters on the products may vary and cannot be specified. Color: Blue Material: Plastic + Metal Size: 45mm diameter (1.77 inches) Package Contents: 1 x Temperature Transmitter 2 x Screws Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3 cm.