The Metrel PAT Tester MI 2140 and MI 2141 are reliable and efficient portable appliance testers that have been thoroughly tested and calibrated. These testers come with a manual, making it easy for users to understand and operate them effectively. With the trusted Metrel brand behind them, these PAT testers provide accurate results for electrical safety testing in various settings such as offices, industrial facilities, and businesses. Perfect for ensuring electrical appliances are safe to use, these testers are a valuable tool for anyone looking to prioritize safety in their work environment.