range: -40°C~300°C/-40°F to 572°F Accuracy:+/-0.5 (-10~100), +/-1 (-20~-10,100~150), +/-2 (otherwise) Response time:3~4s Resolution: 0.1°F(0.1°C) waterproof: IP68 Size : 155*43.5mm Battery: CR2032*2(Included) Calibration : Auto Calibration Feature: Backlight, Max/min, 4 seconds super fast read The product features: 1. With CAL button, it can be automatically calibrated by ice water 2. / switch can change the temperature display between Centigrade and Fahrennelt. 3. Auto power off after one hour without operation. 4.IP68 waterproof design Other Information: Wenmeice We provide OEM service and ODM service----You can add your brand and logo on the product and the package as you wish , just give us the pattern. Our products with CE, FDA, RoHS certification, we stand by our products so you can make your purchase with confidence! 7 days a week you can reach us by the email or Skype or phone number below. Sample Yes, samples are available. Samples price maybe higher than our normal offer, will be refunded after test and confirm the order for mass production.