Shows needs calibrated but test very accurate with other torque wrenches, The Milwaukee M12 FUEL One-Key 12-Volt Lithium-Ion Brushless Cordless 1/2 Needs CAL is an electronic torque wrench with a durable design and adjustable features. This cordless wrench has a compact and lightweight design, powered by a 12-volt lithium-ion battery. It is designed for ratcheting action and has four measurement modes for flexibility in various projects around the home and garden. The red-colored wrench is made of aluminum and has a 3/8 inch drive size, making it a versatile and efficient tool for different applications.