The search coil is waterproof, but the control box is not waterproof.
This 12 inch larger coil TX-850 is unique among gold prospecting metal detectors for its combination of high sensitivity to small gold nuggets and its versatility as a general purpose treasure detector.

Controls and features are tailored for prospecting, including a sophisticated ground balance system, separate control of signal gain and threshold, and a unique discrimination control system. These qualities also make it a great detector for relic hunting. Although the TX-850 is an extremely competent coin validator, its user interface and features are not specifically designed for this purpose. As a coin shooter, you will find that the TX-850 has a slightly lower sensitivity to high conductivity coins such as B. a US district; This is the result of its special design to emphasize sensitivity to small, low conductivity metals such as gold nuggets.

Applications:

Gold detection, desert detection, military use, security inspection, archeology, treasure hunt, beach detection

Characteristics:

1. TX-850 metal detector has high sensitivity and strong capabilities. With this metal detector you can search for coins, relics, jewelry, gold and silver anywhere.

2. Discrimination – When the detector emits different tones for different metal types and when the detector ‘eliminates’ certain metals, we refer to this as the detector ‘discriminating’ between different metal types.

3. Locating – Locating is the process of finding the exact location of a buried object. Long buried metals can appear the same to the eye as the surrounding soil and can therefore be very difficult to isolate from the ground.

4. LCD Display: Shows the probable type of metal, depth of target, range of DISC & NOTCH, SENS level and battery condition. It also has a numeric readout for the target.

5. Ground Balance – Ground Balance is the detector’s ability to ignore or “see through” the earth’s naturally occurring minerals and only emit a tone when a metal object is detected.

6. Target ID – Different types of metals are classified along the arc at the top of the screen on a scale from 0 to 100 from left to right. A 2-digit numeric display is also shown in the center of the display for more accurate target identification when discriminating

TX-850 specification:

Color: Black
Stretch Length: 42 – 52 inches
Battery: 1 x 9V (batteries not included)
Operating Voltage: 9V
Basic Sensitivity: UScoin (12-15 inch)
Detection depth: Max: 1.5 meters (50 x 50 x 1.2 cm aluminum plate)
Search coil: 11 inch DD, waterproof, replaceable
Frequency: 19KHZ, crystal control
Display Modes: LCD & Sound Display
Feature: headphone jack, volume and sensitivity adjustment
Ground Balance Range From Ferrite to Saltwater inclusive
Battery life: Up to 15 hours
Operating temperature: (-10 to +50) degrees Celsius
Operating humidity range: 0 to 90% non-condensing
Connections audio jack
 
Note:

The search coil is waterproof, but the control box is not waterproof.