Small, pocket-sized clamp meter ideal for use during the installation, maintenance and checking of electrical systems and equipment. Measuring AC current (50-60Hz) up to 400A with low current ranges for improved resolution. A data-hold feature to freeze the displayed value for use in confined situations where the display may be difficult to read. A max-hold feature to automatically store and display the maximum value measured over a period of time. With a compact clamp jaw that enables cables to be measured as large as 27mm diameter, covering the majority of applications within the electrical system installation industry. CAT III 600V 400A Current 100µA Current Resolution RMS Data Hold Function LCD Display Long Battery Life 27mm Maximum Conductor Size CAT III 600V 400A Current 100µA Current Resolution RMS Data Hold Function LCD Display Long Battery Life 27mm Maximum Conductor Size