The Black & Decker TLD100 Thermal Leak Detector is a handheld device designed to detect thermal leaks and measure temperature accurately. With a temperature range covering the full range, this thermal detector features two channels and a digital display for easy readings. The thermocouple type ensures precise measurements, making it a reliable tool for professionals in various industries looking to identify and address thermal issues efficiently. This unit is a single quantity and provides a convenient solution for those requiring a compact and efficient thermal detector for their work.