Package includes: 5Pcs Upgrade 3 V2 Thermistor, 3D Printer 100k ohm NTC 3950 Thermistor Temp Sensor 1m/39.4 Inches; 3D Printer NTC 100K ohm 3950 Thermistor Sensors ; Recommended parameters for the thermistor: R25=100K B25/50=3950K 1%; Connector : 2pin XH2.54. This 3D Printer ohm 100k ntc Thermistor Compatible for 3 / 3 Pro/ 3 V2/ 5/ 5 Plus/ /CR10/ Neptune 3, Direct replacement for SV1 bed thermistor, etc. They are Perfect for the 3d printer( 3 V2/ 3 Pro/ 3 max), but the 1m wires are a bit short ; so you need had to cut the thermistor off and splice it in and tape the splices. Plug and play with K board for DIY printer. Don't forget the tape and insulation pad. 3D Printer Thermistor 1m/39.4 inches Used for 3D Printer Heated Bed and the Extruder for 3D Printers. It fits the standard size of an 3 hot end. size:1m Material: copper colour: white Package Contents: 5 x NTC thermistor 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.