The Psychrometer HD500 combines thermometer and hygrometer in one device. The temperature is measured by a K-type temperature sensor for contact measurements. The built-in IR thermometer allows a contact-free measurement of surface. The HD-500 has a large, background lit three-way LC display and USB port. * Built-in InfraRed Thermometer for non-contact temperature measurement to 500°C * Large triple LCD backlit display * Min/Max, Data hold and Auto power off functions * Built-in USB port * Dimensions: (L x W x H) 255 x 75 x 50mm * Measuring range - humidity: 0 - 100% RH * Power supply: 9V battery pack * Product Specifications: Optics: 30:1 * Dew point: -68°C to +60°C * Evaporation temperature: -21°C to +60°C * Temperature accuracy: K-Typ: ±1% +1°C * Weight: 350g * Includes Windows compatible software with USB cable, Type K bead wire probe, carrying case and 9V battery https://elecena.pl/product/27888420/extech-hd500-psychrometer-with-infrared-thermometer 2025-02-22 https://elecena.pl/product/27888420/extech-hd500-psychrometer-with-infrared-thermometer 2025-09-20 https://elecena.pl/product/27888420/extech-hd500-psychrometer-with-infrared-thermometer 2026-02-25 https://elecena.pl/product/27888420/extech-hd500-psychrometer-with-infrared-thermometer 2026-03-20