Check the listing for details. EXTECH LT40 LED Light Meter. Condition: Used. Listed at 50.00 USD. This Extech LT40 LED Light Meter is a reliable tool for measuring light and lux levels. It is designed for use in various industries, including business and industrial and test, measurement, and inspection. This device is branded by Extech and has a unique MPN of LT40. Its accuracy and precision are unmatched, which makes it a valuable addition to any workspace. With this tool, you can easily measure light and lux levels, making it ideal for professionals in the light design and photography industries. The device is used but in excellent condition and has been thoroughly tested to ensure optimal performance. It falls under the category of test meters and detectors, specifically light and lux meters. Invest in this tool to enhance your work efficiency and accuracy.