The HI99556 is an infrared and contact thermometer designed to measure both surface and core temperatures for the food industry. With an external probe, a quick, one-second infrared response time, a HOLD function, and battery life indicator, this thermometer is an ideal solution for temperature measurements in the food industry. There are two models of the HI99556 thermometers, each offering a different measurement range, resolution and option for an external probe. The HI99556-00 covers a temperature range from -10 to 300°C with 1°C resolution, while the HI99556-10 covers a temperature range from -20.0 to 199.9°C with 0.1°C resolution. The HI765PW probe offers core measurements that cover a temperature range from 40 to 150°C.