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 seconds Stress sustain: 9.8N (1kgF) for 1 no deformation Product 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 Connector Head Size : 25 x 5mm / 1" x 0.2"(L*D); Length : 1m / 3.3ft Material : Plastic, Stainless Steel; Main Color : Black,Silver Tone Net Weight : 10g; Package Content : 1 x Temperature Sensor Probe Note: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.