## Technology Comparison Guide
Different situations require different detection approaches. Here's how they compare:
### Thermal Imaging
**Best for:** Surface leaks, roof moisture, HVAC issues
**Cost:** $300-800
**Accuracy:** 90-95%
**Time:** 1-2 hours
**Pros:** Non-invasive, visual documentation, quick results
**Cons:** Can't detect through thick materials, requires line-of-sight
### Acoustic Listening
**Best for:** Pressurized water line leaks
**Cost:** $200-600
**Accuracy:** 85-90%
**Time:** 1-3 hours
**Pros:** Very effective for main line leaks, relatively quick, cost-effective
**Cons:** Requires quiet environment, difficult in noisy areas
### Tracer Gas
**Best for:** Under-slab leaks, radiant heating, inaccessible systems
**Cost:** $400-1200
**Accuracy:** 98%+
**Time:** 2-4 hours
**Pros:** Can find inaccessible leaks, very accurate, safe
**Cons:** Specialized equipment needed, requires professional
### Ground Penetrating Radar
**Best for:** Subsurface mapping, finding utilities, structural voids
**Cost:** $800-2000
**Accuracy:** 90-98%
**Time:** 1-3 hours
**Pros:** Detailed subsurface imaging, comprehensive data
**Cons:** Equipment costly, interpretation requires expertise
### Pressure Testing
**Best for:** New construction, system diagnostics
**Cost:** $100-300
**Accuracy:** 95%+
**Time:** 1-2 hours
**Pros:** Definitive results, affordable, quick
**Cons:** Only confirms if leak exists, doesn't locate
### Moisture Mapping
**Best for:** Building envelope assessment, mold prevention
**Cost:** $500-1500
**Accuracy:** 85-90%
**Time:** 2-4 hours
**Pros:** Comprehensive data, prevents future problems
**Cons:** Equipment access limitations
### Choosing the Right Technology
Consider: location, accessibility, urgency, budget, type of system