Time Domain Reflectometer Measurement Range (M) 5 000 m Accuracy ( Percent) +/-1 Resolution 1 Percent of Range Output Amplitude 5 V Pulse Duration 2 nS Impedance 25 50 75 and 100 Ohms Velocity Factor 0.2 to 0.99 Display Backlight LCD Enclosure Rating IP54 Auto Shutoff Yes Powered By (5) AA Batteries Special Features Auto Setup Trace Hold Includes Case Leads and User Guide Manufacturers Warranty Length 2 yr