measure environmental temperatures using and this 10k NTC LINK Resistance to temperature conversion table LINK Typical Dissipation Constant 5mW or C Probe insulation: 100MOhm Voltage sustain time: 2 seconds, AC1800V 1mA 2 secondsStress sustain: 9.8N (1kgF) for 1 no deformationProduct Name : Temperature Sensor Probe Type : NTC 10K 1 percent Measurement range : -20C to 105C(-4F to 221F)Resistance : 10K Ohm Accuracy : 1 percent Connection Type : 2 Pin JST XH2.54mm Plug ConnectorHead Size : 25 x 5mm or 1" x 0.2"(LxD) Length : 1m or 3.3ftMaterial : Plastic, Stainless Steel Main Color : Black,Silver ToneNet Weight : 10g Package Content : 1 x Temperature Sensor ProbeNote:Light 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 1-3 cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.