Identify the state in the working telephone line(Clear, Ring, Busy).
Receiver the tone signal on the cables or wires(telephone line).
Track the cables or wires, and diagnose the breakpoint.
Judge continuity of the cables or wires.
Send a dual alternating tone to the object cables or wires.
Audio signal: 1.5kHZ
Receiving frequency range: 100HZ-300kHZ
Battery supply: 9V (6F22) (Not Included)
Receiver: 238 x 43 x 26mm
Transmitter: 145 x 35 x 25mm
Dual Mode: This voltage detector features manual/Auto mode, it is convenient to detect and indicate the existence of AC voltage in Auto mode, or applied to more occasions in manual mode
Freely Adjustable Sensitivity: The sensitivity of this detector can be adjusted to any value according to your needs. When adjusting to low sensitivity, it can more accurately distinguish the specific situation in complex lines
8 LED Indicators in 3 Colors: This detector can smart judge the strength of detected voltage by automatically lighting different color and quantity LED indicators
Live/Neutral Wire Distinguish: Safe to distinguish live/neutral wire by comparing the detected voltage strength
Double insulation protection probe: Flathead design, suitable for any socket type
Breakpoint Locate: Safe and fast to locate the breakpoint of the live wire by measuring the change in voltage strength
AC Voltage Range: 12V ~1000V(Manual Mode); 48V ~1000V(Auto Mode)
Power: 1 x 9V 6F22 Battery (Not Included)
1 * FWT21 Sender
1 * FWT21 Receiver
1 * AVD06X Tester
1 * Protective Bag
2 * User Manual (
The batteries are not included in the package due to Aviation Security Check. Sorry for any inconvenience caused.