The lightweight, state-of-the-art TW-7700 utilizes advanced digital signal processing for precision locating performance, yet is extremely easy to use. The display is a large and easy to read LCD that gives the user all the necessary information to do the job. A digital keypad allows the user to set the volume level, check the battery level, or activate an LCD backlight. Depth measurement is done at the push of a button.

The transmitter allows the user to locate in either a conductive or inductive mode. A meter and switch make transmitter setup simple and quick.

In the Fisher tradition, the TW-7700 is affordable, tough, and simple to use, while providing maximum performance. A two-year limited warranty comes standard with the unit.  

Advanced digital signal processing for accurate locating

Instant target response

Automatic gain control for maximum sensitivity

Audio and visual left/right guidance

Large easy to read LCD display

Push button depth measurement

Operates on standard batteries

Hard or soft carrying case standard equipment

Weather resistant design

TW-7700 Specifications

Receiver Depth Accuracy: +/- 1 inch per foot in nominal conditions Readout Units: Inches or cm (factory preset) Left/Right Guidance: Continuous audio tone = Left Pulsed audio tone = Right. VCO (varying pitch) output for easy over target location. Visual: Left/Right/Over Target messages Signal Strength: Digital Numeric Readout & Bar Graph Sensitivity Adjust: Automatic LCD backlight: Included Battery Test: Automatic Low Battery alert Push button readout Battery Type: Six "C" cells Battery Life: 80 Hours Weight: 5.4 lbs. Operating Temperature: -4°F to +140°F (-20°C to +60°C)

发射机 Transmitter 输出频率：82千赫 Output Frequency: 82 kHz Output Power: 0.5 Watts nominal Battery Test: Yes Battery Type: 6 Volt lantern batteries Battery Life: 80 Hours Weight: 5.0 lbs. Accessories Headphones - Volume adjusts separately for each ear. Coupling Clamp - Useful for in-service and electrical power line tracing when a metal-to-metal hookup is not possible