Feature: 1. Main Use: The pipeline locator is to provide guarantee for safe excavation, identify the maintenance position of underground facilities with the help of the instrument, and can also locate according to the characteristics of the facilities, and accurately complete the maintenance of underground facilities. 2. How It Works: The transmitter loads and transmits a signal current of a special frequency through the microcontroller. The receiver has a built‑in induction coil to receive the magnetic field signal emitted in the pipeline, and the coil generates an induced current to calculate the direction and position of the transmitter. 3. Far Near Mode: It consists of a receiver and a transmitter, the receiver can enable the operator to accurately detect the bad position of the underground pipeline. There are generally two receiving modes, long distance mode, 5m / 16.4ft detection range, short range mode, 1m / 3.28ft detection range. 4. Electromagnetic Signals Theory: The pipe locator uses the theory of electromagnetic signals to locate the blockage or repair location of underground pipes or air conditioning pipes. Then adjust the sensitivity knob, peak mode (maximum) or valley mode (minimum), to locate the transmitter. 5. Wide Application: Sewer pipe inspection receiver transmitter can be used in water supply pipelines, air conditioning pipelines, cable pipelines, pipeline vacuum systems, lead industry pipelines, underground pipeline construction, small space rescue work, underground cave exploration, underwater research and other exploration work. Specification: Item Type: Sewer Inspection Receiver Transmitter Material: ABS Device Description: Pipeline Detectors Generally Consist of Two Parts: 1. Transmitter Technical Parameters: Transmission Frequency: 512HZ Output Waveform: Sine Wave Transmitting Distance: Approx. 5m / 16.4ft 2. Receiver Technical Parameters: Receiving Frequency: 512HZ Power Consumption: <3W Maximum Test Burial Depth: Approx. 5m / 16.4ft Charging Time: About 6 Hours Power Display: Yes, 4 Gears, Flashing When Low Power Continuous Use Time: More Than 10 Hours Received Signal Strength: Pointer Meter 6 gear Sensitivity Adjustment: Yes Speaker: Yes Detection Mode: Far, Near Built in Polymer Lithium Battery: 3000mAh (receiver), LR44 160mAh (transmitter). Package List: 1 x Storage Box1 x Receiver1 x Receiving Rod1 x Transmitter1 x Manual1 x Power Cable