Fangrui Product Details 1. Bside Fwt8x Dual Mode Network Wire Tracker Cable Toner Rj45 Rj11 Accurate Ethernet Lan Tracer 2. The Fwt8x Portable Network Cable Tester Works In Digital Signal Mode, Which Has Better Anti-interference And Clearerstronger Sound Than Traditional Products. 3. It Can Be Hunted When There Is Voltage. (less Than 60v); The Tracking Distance Is Far More Than 300 Meters. 4. Pair Tracking: You Can Quickly Find The Desired Pair Among Many Pairs. Applicable To Rj45 Network Cable Terminal, Rj11 Telephone Cable Terminal. You Can Test Other Metal Cables With Adapters. 5. Network Cable Matching: Test The Physical Connection Status Of The Network Cable, Such As Open Circuit, Short Circuit, Wrong Connection, Reverse Connection, Etc. 6. Phone Line Test Status: Use The Transmitter Only To Test The Status Of The Working Phone Line. 7. Parameter: 8. Operating Temperature And Relative Humidity: 0-40 Degrees Celsius, Maximum (non-condensing) 9. Storage Temperature And Relative Humidity: -10-50 Degrees Celsius, Maximum (non-condensing) 10. Altitude: Less Than 2000m 11. Explosion-proof Grade: Ip40 12. Signal Transmission Distance: More Than 300m 13. Safety Class: Iec61010-1 600v Cat Iii, Pollution Class Ii 14. Weight: 0.180kg. 15. Product Size: 16. - Receiver: 17.5 X 4.5 X 3.5cm; 17. - Transmitter: 12 X 4.8 X 3.4 Cm. 18. Transmitter Battery: Aaa1.5v (not Included). 19. Receiver Battery: Aaa1.5v (not Included)