Electrical professionals often encounter the need to track cables or cabling systems, and often need to determine if the safety device is connected to a particular circuit, or to identify and track metal tube, heating pipe, or underground cable. This cable detector can help such users. Features: The transmitted signal is digitally encoded to ensure that the signal is clearly received by the receiver, avoiding any erroneous display caused by the interference field. This instrument is widely used in communication cable construction, electrical power cable construction, construction pipeline, communication cable with power supply circuit and electric heating line maintenance work, is an indispensable tool for construction maintenance personnel. Detect the laying route of cables, electrical lines, water and gas supply pipes buried in walls and underground. Detect broken or short circuit faults in cables and electrical lines buried in walls and underground. Look for the fuse and its safety circuit. Look for covered sockets and junction boxes. Look for open circuit and short circuit faults in the electric heating circuit under the floor. The transmitter is equipped with an AC/DC voltmeter function to linearly measure 12-400V AC and DC voltage. The transmitter can display the set transmit power level, transmit code, battery energy information, measured external voltage value and type, and external high voltage alert symbols, which can also be displayed on the receiver. The screen of the receiver can display the transmitting power of the transmitter, transmitted codes, energy of the transmitters and its own batteries, AC voltage induced signal detected and warning symbol for mains voltage. The transmitter has a self-test function, and the sensitivity of the receiver can be adjusted automatically or manually. The receiver has an automatic sweep frequency function, and both the transmitter and the receiver have a mute function, which is convenient for use in environments such as hospitals where quiet testing is required. Both the transmitter and the receiver have a flashlight function when working in the dark. The transmitter has a temperature measurement function. The receiver is available with automatic shutdown. The receiver LCD screen is provided with backlight for application in poor light. Additional transmitters are available to extend or distinguish several signals. Compact, practical and easy to carry. Specification: Material: ABS Color: black+green Transmitter: Output signal: 125KHz External voltage identification voltage range: DC 12~400V±2.5%; AC 12~400V (50~60Hz)±2.5% Temperature measurement accuracy: ±2.5 Display: LCD, with function display and bar chart External voltage dielectric strength: maximum 400V AC/DC Overvoltage category: CAT III 300V Pollution level: 2 Battery: 1 * 9V battery (not included) Power consumption: Minimum current: about 31mA Maximum current: about 115mA Fuse: F 0.5A 1000V, 6.3*32mm Operating temperature: -10~50, with Max. RH of 80% (non-condensation) Storage temperature: -20~60, with Max. RH of 80% (non-condensation) Altitude: Max. 2000m Item size: 190 * 89 * 42.5mm / 7.5 * 3.5 * 1.7in Item weight: 360g / 12.7ounce Receiver: Tracking depth: tracking depth depends on the media and the specific application Cable positioning mode: Unipolar application: about 0-2m Bipolar application: about 0-0.5m Separate return line: up to 2.5m Grid voltage identification: about 0-0.