tested the box was opened but all looks to be new This Amprobe TMD-53 K/J Type Dual Input Thermocouple Thermometer is a reliable tool for measuring temperature in various industrial settings. Its brand and product name are well-known in the industry, making it a top choice for professionals who need an accurate and efficient thermometer. The thermometer is designed with a dual input feature, making it easy to measure temperature from both sides of the thermocouple. This is especially useful in applications where the temperature gradient is significant. Its compact design and durable construction make it easy to use and transport, while its intuitive interface ensures accurate readings every time. Whether you're a professional or a DIY enthusiast, this thermometer is a must-have for anyone who needs to measure temperature accurately.