The UNI-T UT276A+ Clamp Earth Ground Tester is designed to make grounding system testing fast, safe, and reliable without the need for auxiliary electrodes or disconnecting ground circuits. This advanced tool is equipped with a wide measurement range starting from 0.01Ω with a resolution of 0.001Ω, ensuring precise readings. It supports auto-ranging, making it user-friendly and adaptable to different testing conditions. The tester includes features such as a resistance limit alarm, data hold, and data recall, which enhance its functionality in fieldwork. Additionally, its durable design with double insulation makes it suitable for outdoor environments, effectively blocking environmental interference. The 32mm jaw opening allows for easy clamping around ground rods or conductors, and its lightweight yet robust build ensures ease of use and longevity. Powered by four 1.5V AA batteries, the UT276A+ also includes auto power-off functionality to conserve battery life.