Buying Guide
Vehicle inspectors and second-hand car merchants choose between EC-770S built-in probe and EC-900 external split probe models.
Choose EC-770S If
You inspect cars on the move, carry tool bags frequently
Mainly sedan/SUV flat body panels, no deep wheel arch narrow gaps
Budget mid-range, integrated ruby wear-resistant probe, compact 114mm body
Key specs: 0–2000μm range, auto F/Fe ferrous & NFe non-ferrous substrate identification, red over-limit backlight alarm for repainted panels.
Choose EC-900 If
Inspect truck chassis, tight wheel wells, inner frame narrow crevices
Need max 5000μm thick filler detection with F5.0 probe option
1m long external cable probe to reach hard-to-access car body sections
Core Car Inspection Feature
Statistical mean/max/min paint thickness display to judge full-body respray history quickly.
Professional paint shops require high-precision, data-storable coating meters.
Must-Have Shop Functions
1 Zero & multi-point calibration to match steel/aluminum car substrates
2 DIR temporary data group (auto clear power off) + GEN permanent storage groups for batch vehicle records
3 USB PC data export to archive inspection reports for customer files
4 Red backlight over-thickness alarm to avoid over-spray paint layers
5 Ruby anti-wear probe to withstand daily hundreds of repeated surface contacts
Model Recommendation
EC-770S for daily light passenger cars; EC-900 for heavy trucks, construction machinery thick anti-rust coatings.
Home car hobbyists doing personal repainting, no daily commercial volume testing.
Why EC-770S Is Ideal for Hobbyists
1 Compact lightweight (80g without battery), easy to hold during sanding/paint prep checks
2 Auto magnetic/eddy current mode, no manual substrate switching
3 Simple 3-key operation (CAL/ZERO/Power) without complex menu navigation
4 0.1μm fine resolution under 100μm to spot thin clear coat layers
5 Auto shutoff prevents battery drain during intermittent weekend use
Skip EC-900 Unless You Regularly Inspect Large Machinery
Manufacturers testing electroplating, powder coating, anti-corrosion steel layers pick EC-900 series.
Industrial Critical Specs
1 Max measuring range up to 5000μm (F5.0 probe) for thick industrial protective coatings
2 Separate replaceable probes (FN2.0/FN3.0/F5.0) for different coating thickness tasks
3 Large 2000-point data storage, USB batch export for factory QC reports
4 Wide operating temperature -10~50℃ fits unheated factory workshop environments
5 Support convex/convex curved metal piece measurement after multi-point calibration
Workflow Tip
Complete zero calibration on bare uncoated substrate before each production batch test.
Clear customer guide to decide between EC-770S (integrated) and EC-900 (external cable probe)
EC-770S (Built-in Probe) Pros & Cons
Pros: Smaller, lighter, no cable tangling, lower cost, fast single-hand testing
Cons: Cannot reach narrow recessed metal components
Best for: Car dealers, small paint shops, DIY users
EC-900 (External Probe) Pros & Cons
Pros: 1m flexible cable access tight gaps, interchangeable probes for ultra-thick coatings
Cons: Larger main unit, extra probe storage needed, higher price
Best for: Heavy machinery inspection, shipbuilding, industrial component QC labs
