1. Introduction
The GOYOJO KT-100SZ is an advanced automatic geothermal and underground water detector designed for efficient and accurate water source location for borehole drilling. This device utilizes geophysical methods to detect deep underground water resources up to 100 meters. It is suitable for various geological conditions and provides reliable data for water exploration projects.
2. Safety Information
Please read and understand all safety instructions before operating the device. Failure to follow these instructions may result in injury or damage to the equipment.
- Do not operate the device in explosive atmospheres or near flammable materials.
- Ensure all connections are secure before powering on the device.
- Keep the device dry and away from extreme temperatures.
- Use only the provided charger and accessories.
- Do not attempt to open or repair the device yourself. Refer to qualified service personnel.
3. Package Contents
Verify that all items listed below are present in your package:
- KT-100SZ Main Detector Unit
- Electrode Cables
- Charging Adapter
- User Manual
- Carrying Case

Image 3.1: Complete KT-100SZ Deep Water Detector kit, including the main unit, cables, and accessories, neatly packed in its protective carrying case.
4. Product Overview
The KT-100SZ features a robust design with an intuitive interface for ease of use in field conditions.
4.1 Main Unit Front View

Image 4.1: Front view of the KT-100SZ detector, highlighting the industrial 7-inch HD touch screen for data display and interaction.
4.2 Main Unit Rear View

Image 4.2: Rear view of the KT-100SZ detector, displaying the product label with model number (KT-3000SZ shown as example), serial number, and manufacturer information.
5. Setup
5.1 Charging the Battery
Before first use, fully charge the built-in DC12V 4000mAh battery. Connect the charging adapter to the device's charging port and plug it into a suitable power outlet. The charging indicator will show the charging status. A full charge provides over 12 hours of standby time.
5.2 Connecting Electrodes
Connect the electrode cables to the designated ports on the main unit. Ensure a firm and secure connection. The KT-100SZ supports 4 channels for data acquisition.
5.3 Powering On
Press and hold the power button located on the device until the screen illuminates. The system will boot up and display the main menu.
6. Operating Instructions
The KT-100SZ features an industrial 7-inch HD touch screen for easy navigation and data visualization.
6.1 Initial Settings
- Language Selection: From the main menu, navigate to 'Settings' and select your preferred language (English, French, Arabic, Chinese are supported).
- Depth Selection: Choose the desired detection depth (e.g., 100M for KT-100SZ). Other models support 200M or 400M.
- Frequency Selection: Select the appropriate frequency for your measurement. The KT-100SZ typically uses a Single Triple 33 frequency.
6.2 Performing a Measurement
- Place the electrodes in the desired measurement area according to the survey pattern.
- From the main menu, select 'Start Measurement'.
- The device will automatically begin data acquisition. Monitor the progress on the HD touch screen.
- Once the measurement is complete, the results will be displayed, showing potential water locations and depths.
- Save the measurement data for further analysis if needed.

Image 6.1: Examples of the GOYOJO Deep Water Detector being used in different field environments for underground water exploration.
7. Maintenance
7.1 Cleaning
Wipe the device with a soft, dry cloth after each use. Do not use abrasive cleaners or solvents. Ensure no moisture enters the ports.
7.2 Battery Care
To prolong battery life, avoid fully discharging the battery frequently. Recharge the device when the battery level is low. If storing for extended periods, charge the battery to approximately 50% and recharge every few months.
7.3 Storage
Store the device in its original carrying case in a cool, dry place, away from direct sunlight and extreme temperatures. Keep it out of reach of children.
8. Troubleshooting
- Device does not power on: Ensure the battery is charged. If not, connect the charger and try again.
- Inaccurate readings: Check electrode connections. Ensure proper ground contact. Verify settings (depth, frequency) are correct for the survey area.
- Screen unresponsive: Try restarting the device. If the issue persists, contact customer support.
- Error messages: Refer to the on-screen error code or message for specific instructions. If unclear, consult the manufacturer.
9. Specifications
The following table details the technical specifications of the KT-100SZ model:

Image 9.1: Detailed specifications table for the KT-SZ series, including detection depth, accuracy, frequency, and other features.
| Feature | DC-KT100SZ | DC-KT200SZ | DC-KT400SZ | DC-KT600SZ | DC-KT900SZ | DC-KT1200SZ |
|---|---|---|---|---|---|---|
| Detector Depth | 100m | 200m | 400m | 600m | 900m | 1200m |
| Accuracy | 0.001mV | |||||
| Frequency | Single Triple 33 frequency | Single Triple 36 frequency | Single Triple 40 frequency | Single Triple 48 frequency | Single Triple 56 frequency | Single Triple 60 frequency |
| Conversion Range | 0~2000mv | |||||
| Channel | 4 | 6 | 8 | 10 | 12 | 14 |
| Language | English, French, Arabic, Chinese | |||||
| Power Supply | DC12V 4000mAh Built-in Battery, Rechargeable battery, more than 12 hours standby time | |||||
| Weight | 8kgs | |||||
| Application Terrain | Different complicated terrain | |||||
| LCD | Industrial 7 inch HD Touch Screen | |||||
10. Warranty and Support
The GOYOJO KT-100SZ Deep Water Detector comes with a standard manufacturer's warranty. For warranty details, technical support, or service inquiries, please contact your authorized dealer or the manufacturer directly. Please have your model number (KT-100SZ) and serial number ready when contacting support.





