Rugged design with Waterproof (IP65) and 9.8ft (3m) drop-proof protection, Extech IR320-NIST provides fast and accurate temperature measurements up to 1202°F (650°C). Its dual guided laser shows the target area between the two points at a 12:1 distance to target ratio. It has programmable High and Low Alarms with Red (HI) and Blue (LOW) visual LED alert. The Lock function allows for continuous measurement. Includes certificate traceable to NIST.