When your service and installation conditions require the very best, the Model 521 delivers. The adjustable transmit power allows you to select the best signal for maximum performance. The transmitter's high power output offers extended range and use on higher resistance wire paths that other locators can't touch. The 521's receiver provides both audible and visual indications of signal strength that make locating valves, wire breaks and nicked insulation a breeze. The pistol style design of the receiver makes it easy for you to move along quickly to locate even the longest wire path while the rugged headphones block ambient noise and improve "feel" for the signal. The Model 521 comes complete with transmitter, receiver, headset, ground stake and complete instructions.

Technical Specifications
Power requirements: Transmitter - two 6V lantern batteries
Receiver - one 9V battery
Battery Life: Transmitter - 30 hours nominal
Receiver - 100 hours nominal
Transmitter Frequency: 1748Hz
Transmitter Power: 750Vp-p 285Vrms
Voltage Protection: 120VAC 250VDC
Construction: powder coated aluminum housing in polyethylene case
Dimensions: 17.375" x 10" x 8.75" complete kit
Weight: 12 lbs. complete