High Accuracy: Featuring advanced circuitry, MCU control, noise reduction, and digital filtering, it significantly enhances measurement accuracy and stability.
Easy Operation: User-friendly interface with a variety of built-in calculations enables direct resistivity reading.
Multiple Arrays: Supports various configurations, including Schlumberger sounding and gradient array.
ADMT-2B Electrical Resistivity Meter
R&D Since 1973

Free upgrading at the original price after purchasing within six months
The ADMT-2B resistivity meter is a newly upgraded electrical prospecting instrument developed based on both domestic and international technologies. With an improved circuit design and advanced components, it delivers significantly enhanced measurement accuracy.
The system features wireless control, automatic mapping, and a durable ABS waterproof housing, making it well-suited for field operations. It supports multiple electrode configurations, including Schlumberger sounding and gradient array, enabling flexible application across various geophysical survey tasks.


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Iron Mineral Exploration

Water Source Survey

Environmental Census

Engineering Investigation
Engineering Survey: Widely used in geotechnical investigations for railways, bridges, and urban projects, as well as archaeological surveys and underground pipeline detection, supporting both detailed and preliminary exploration.
Geological Survey: Applied in detecting mined-out areas, groundwater hazards, dam risks, fault zones, collapse columns, and slope instability, for both detailed and regional hydrogeological investigations.
Powered by a deeply developed Android-based APP, the system offers a high level of intelligence with a smooth user experience. It is compatible with smartphones, tablets, and dedicated control units. From startup to final imaging, the entire workflow is guided step by step. Built-in automatic K-value calculation for different array configurations eliminates manual complexity, enabling even beginners to quickly produce professional-quality data.
The instrument supports full waveform recording and adopts advanced circuit design combined with intelligent noise reduction technology. It effectively suppresses random field interference, ensuring stable and reliable measurements even in electromagnetically noisy environments. Every geological conclusion is backed by consistent and trustworthy data.
The system integrates ten standard array types, including Schlumberger sounding, three-electrode sounding, and gradient array. Users can flexibly select configurations based on required depth and resolution, making it suitable for a wide range of applications from vertical sounding to profile surveys in engineering and hydrogeological investigations.
Combining data acquisition, processing, and imaging in one system, the instrument allows rapid apparent resistivity mapping with a single click after measurement. On-site preliminary interpretation becomes fast and efficient, helping guide subsequent work with minimal time and effort.

① HV Input ② Fuse ③ V/A Display ④ WiFi Antenna ⑤ A/B Terminals ⑥ Remote Terminal ⑦ WiFi Indicator ⑧ Status Indicators ⑨ M/N Terminals ⑩ Charging Port ⑪ Power Switch
| Model | ADMT-2B |
|---|---|
| Voltage Resolution | 0.5 μV |
| SP Compensation Range | ±3000 mV |
| Voltage Measurement Range | 14000 mV |
| Input Impedance | ≥50 MΩ |
| Apparent Resistivity Accuracy | ±0.5% ±1 count |
| Apparent Chargeability Accuracy | ±1% ±1 count |
| 50 Hz Noise Suppression | ≥80 dB |
| Maximum Output Voltage | DC 1000 V |
| Maximum Output Current | 5 A |
| Output Waveform | Pulse width 0.5–60 s, duty cycle 1:1, bipolar |
| Output Waveform | Pulse width 1–60 s, duty cycle 1:1, bipolar |
| Current Channel | ±5000 mA ±2% ±1 count |
| Current Resolution | 0.5 μA |
| Power Supply | 12 V / 6800 mAh lithium battery |
| Operating Environment | −10°C to +50°C, 95% RH |
| Storage Temperature | −20°C to +60°C |



Certificates and Awards: CE, ISO, China National High-tech Enterprise, China National Technical Invention Patent

1973: Developed the domestic short-wire D75 electrical method
1977: Developed an aerial proton
magnetometer
1981: Developed domestic resistivity DW83 electrical method
1988: Developed a
multi-functional high-power electric method
2001: Developed the NEP series of natural electric field
geophysical probes
2005: Completed the "High-Density Electrical Method" project commissioned
by the Institute of Geology and Geophysics, Chinese Academy of Sciences
2011: Completed the
"Controllable Source Geodetic Electromagnetic Instrument (CSAMT)" project commissioned by the
Institute of Geology and Geophysics, Chinese Academy of Sciences
2013: Received the support of the
Innovation Fund of the Ministry of Science and Technology, and passed the Shanghai High-tech Achievement
Transformation Certification
2017: Developed mobile phone water-finding instrument and geophysical
instrument, supporting two-dimensional and three-dimensional automatic mapping of Android system
2018:
Independent research and development of 16-channel series products to solve the problem of natural electric
field source changes, simple, efficient and precise
2021: Water-finding instrument, geophysical
prospecting instrument, aerial geophysical prospecting, earthquake advanced prediction system, etc. will be
developed for cloud platform big data automatic analysis function
2022: The company was renamed
Shanghai Aidu Intelligent Detection Technology Co. Ltd, and expanded its business operations
2023:
Launched AI automatic analysis functionality, ushering geological exploration into a new era of
intelligence. Introduced speedy water exploration instruments, magnetotelluric instruments, and
high-precision three-component magnetometers
2024: Released an online monitoring system supporting ERT,
bipole electrical, magnetic, and other geophysical data acquisition, with integrated data fusion and
processing capabilities for geological hazard monitoring and prevention
2025: Released UAV magnetic
survey and unmanned boat electrical survey systems with automated acquisition, rapid imaging, cloud-based
inversion processing capabilities


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Shanghai Co.: Floor 3, Building E, 466 Chengjian Rd, Shanghai
Guilin Co.: Floor 4, Building 5, University Science Park, 108 Qilidian Rd, Guilin
Hong Kong Co.: 8316 8/F,JC Tower NO.91 WAI YIP STREET,KOWLOON
E-mail: info@aidush.com Tel/WhatsApp: +8613197735816