🧭 About the sTEM System

The sTEM System is an advanced hydrogeophysical technology used for precise mapping of subsurface geological layers.
It’s ideal for groundwater exploration, aquifer mapping, fracture detection, and assessing weathered overburden thickness.

By choosing different power levels and loop configurations, users can achieve reliable resistivity data for both shallow and deep surveys.

⚙️ Key Applications

Use the sTEM system for:
✅ Groundwater exploration – Locate aquifers and assess water potential.
✅ Mineral exploration – Define mineral-bearing zones and their depth.
✅ Geological mapping – Analyze subsurface layering and structure.

High-power configurations combined with larger transmitter and receiver loops make the sTEM ideal for deep mineral and aquifer investigations — up to 600 m.

📱 Easy to Operate

The sTEM is built for simplicity and field efficiency.

  • Operated via Android or iOS app

  • Data processed on a Windows PC

  • Minimal training required for crews

⛏️ Field Performance

Standard Measurement Setup
📏 Loop Size: 40 m × 40 m
👥 Crew: 2 persons
📈 Productivity: 15 – 20 stations/day
📍 Station Spacing: ≈ 250 m
🌍 Coverage: > 1 km² (≈ 100 ha) per day
📊 Depth of Investigation: Up to 300 m

High-Power Configuration
📏 Loop Size: 80 m × 80 m
⏱️ Measurement Time: 5 – 10 minutes per station
📈 Stations per Day: 10 +
📊 Depth of Investigation: Up to 600 m

🔋 Power & Loop Options

The sTEM system transmits 5 A, 10 A, or 20 A depending on configuration.

Loop Size Type Typical Use Depth
20 m × 20 m Lightweight Shallow surveys up to 150 m
40 m × 40 m Standard General mapping up to 300 m
80 m × 80 m Large Deep investigations up to 600 m

Small, lightweight batteries power the system all day — only the sTEM20 requires a battery change during extended operations.

🧩 Data Processing & Output

Data is processed with dedicated software to create:

  • 2D resistivity cross-sections

  • Subsurface maps and profiles

By integrating sTEM data with topographic and resistivity information, users can produce accurate subsurface images and pinpoint potential exploration targets.

🧳 Portable & Upgradeable

Compact and lightweight, the sTEM system packs easily into travel cases for air or ground transport.
An optional wireless receiver simplifies large-loop surveys by eliminating long lead-in cables.

Upgrade Options:
🔹 5 A → 10 A: Firmware upgrade
🔹 10 A → 20 A: Workshop modification

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