The 4328A Milliohmmeter is a highly sensitive portable instrument designed for the measurement of low resistance. The 1 mohm to 100-ohms measuring range and 20 µohms resolution make the 4328A ideal for measuring resistance of switches, relays, and connectors and the resistivity of conductors and semiconductors. Accuracy is ±2% full scale with no additional error caused by series reactance of samples up to two times full scale! Measuring frequency of 1kHz. Features a large, easy-to-read meter.