| Description
 The Sanwa PDR4000 is a portable digital earth tester used for measuring earth resistance in electrical installations. The device offers three measurement ranges, a backlit display, and a data hold function for easy use and accurate results. It is a safe and reliable instrument, meeting IEC-61010 standards for industrial environments.  | 
| Key Features
 Measurement ranges: It has three ranges for measuring earth resistance: 40 Ω, 400 Ω, and 4000 Ω. Measurement modes: It supports both 3-pole and 2-pole measurements; the 2-pole mode requires an optional accessory (TL-68). Interference voltage detection: The device can detect interference voltage up to 400V, disabling earth resistance measurement if the voltage is 10V or higher. Data hold and relative function: It includes a data hold function to freeze readings and a relative function for comparing measurements to a stored reference value. Display: The device features a large, backlit 4000-count LCD. Auto power-off: It has an auto power-off function to conserve battery life. Safety compliance: It meets IEC-61010 safety standards and has an IP30 rating.  |