MeasuPro Professional Instant Read Food Thermometer, IPX7 Waterproof Digital Cooking Thermometer, Thermofast Internal Meat Thermometer w/ Hold Function and Calibration Capability, Stainless Steel Max/Min feature recalls the last lowest and highest temperatures measured 1x LR44 battery with auto-off function of 15-20 minutes. Hold temp function 100% waterproof with an IPX 7 rating. Instant read measurements within seconds Wide measuring range of temperatures from -40F to 482F / -40C to 250C. Within +/- 1.8 F Accuracy MeasuPro offers a 2 year manufacturer warranty for all our products