Extremely robust and versatile industrial multimeter Sonel CMM-40 is an instrument with extensive measurement capabilities designed for industrial, service and other works. It is used, among other things, for measuring voltage and current (DC and AC TRUE RMS), in addition, the device allows you to measure capacitance, frequency, duty cycle (filling), continuity of connections, resistance and and temperature. Additional functions such as automatic or manual range change, HOLD function, peak value hold function and REL function further expand the capabilities of this device. Thanks to its well-thought-out ergonomic design and sleek dimensions, the CMM-40 is extremely convenient to use and works well even in hard-to-reach places. The easy-to-read backlit display makes it possible to read the result even in low light. The compact and economical device hides a lot of measurement capabilities, making it an essential tool for specialists associated with the electrical power industry and sanitary engineering. Sonel CMM-40 is an instrument that combines a wide range of functions with ease of use and a favorable price, so it can be successfully recommended even to novice users.