Transmitter Inductive Mode (HF only)
Induction is achieved by placing the transmitter over the target cable/pipe or by using the optional Inductive Signal Clamp. It's the easiest and quickest way to applying a trace signal that is strong enough for tracing most lines. The trace signal generates an alternating magnetic field around the cable which induces a signal into the receiver's cable sensor. A sharp null in the audio signal between the two peaks occurs when the receiver's tip is directly over the cable.

Transmitter Conductive Mode
If an exposed section of a target gas or water pipe is accessible, conductive coupling is the most reliable method for applying the trace signal. This mode has to be used to apply both HF and LF frequencies so that you can use all three features on-the-fly. Providing a good electrical contact between the clip and the conductive portion of the target line by removing rust or paint before attaching the clip is very important.

Magnetic Locating Mode
Only the MAC-51Bx receiver is required when operating in the magnetic mode. Just set the Mode switch to MAG, the Gain control to mid-range, and you're ready to locate underground ferrous pipes, water meters, water valves, and property markers - or anything that has a magnetic field including the 50/60Hz electro-magnetic field generated by energized power lines.

Mini-Transmitter
The MT-2 (Mole) is a miniature transmitter designed to be used in conjunction with the MAC-51Bx Receiver. It is just what you need to trace non-metallic pipes, pinpoint obstructions in pipes, locate concrete septic tanks, and monitor the course of utility tunneling under highways.

As the Mole, attached to the end of a sewer/ drain cleaning snake, is pushed through a non-metallic pipe, it emits a strong signal that you can detect and trace at depths up to 18 feet using the MAC-51Bx receiver set to the HI mode.

The MT-2 is very easy to attach to a plumber's snake with the use of electrical tape, due to it's one concave surface side.

The MT-2 provides years of trouble-free operation and uses one AAA penlight battery to provide up to 30 hours of operation. The battery cap also serves as the On/Off switch. You turn the power off by rotating the battery cap counterclockwise.

Conductive Cable Assembly The Conductive Cable Assembly is used for applying the tracing signal directly to an exposed section of a cable, line or metal conduit for maximum tracing distance.

Accessory - Inductive Signal Clamp
The Inductive Signal Clamp increases the versatility of the MAC-51Bx by providing a convenient method of selectively applying the trace signal to conductors covered with non-metallic insulation.

• Three Year Warranty
• Two active frequencies for pipe, cable and line tracing
• Passive operation for locating iron and steel targets and energized 50/60Hz power lines
• Inductive and conductive signal coupling
• Extra Heavy Duty Clips and Cable
• Five discrete sensitivity settings
• Receiver supplied with two environmentally friendly 9-volt lithium batteries
• Piezoelectric speaker
• 45º Depth Measurement
• Patented HeliFlux® Sensors
• Specifications