measure environmental temperatures using and this 10k NTC LINK Resistance to temperature conversion table LINK Typical Dissipation Constant 5mW/ 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%;Measurement range : -20C to 105C(-4F to 221F)Resistance : 10K Ohm;Accuracy : 1%;Connection Type : 2 Pin JST XH2.54mm Plug ConnectorHead Size : 25 x 5mm / 1" x 0.2"(L*D); Length : 1m / 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 a little different from the real thing.The measurement allowed error is +/-1-3 cm.