Designed for harsh wet environments — humidity, condensation, spray, and salt fog. IP67-rated protection with sealed structure. Ideal for bathroom call stations, elevators, parking garages, and marine applications.
High humidity, steam condensation — needs reliable call pickup in wet environments.
Condensation from temperature changes, cleaning spray — needs sealed protection.
Moisture accumulation, pressure washing, vehicle exhaust — rugged sealed design.
Salt fog, high humidity, spray — needs marine-grade corrosion protection.
Humidity, temperature swings, cleaning exposure.
Rain, humidity, dust — needs weather-resistant design.
Dust, chemicals, mechanical shock — rugged durability.
Waterproof layer + hydrophobic mesh design. Stainless steel mesh with 20-30μm aperture repels water while maintaining acoustic transparency.
Electret mics: IP67 membrane adds waterproofing with minor high-frequency attenuation —
suitable for call/intercom scenarios.
Dynamic mics: IP67 membrane adds waterproofing with no audio quality degradation —
ideal for marine and vehicle applications.
Anti-corrosion coating on mic housing + sealed internal components. ECM-DMP-21F specifically designed for marine environments with full salt spray resistance.
Operating range suitable for indoor, outdoor, and marine environments. Micro vent channels prevent condensation buildup. Sealed cavity with silicone rubber at connection points ensures no moisture ingress.
| Parameter | Requirement | Why It Matters |
|---|---|---|
| Protection Rating | IP67 equivalent with sealed structure + hydrophobic mesh | Prevents moisture, condensation, spray, and salt fog ingress |
| Sensitivity | -38dB to -60dB (mid-low range per scenario) | Prevents false triggering from airflow, spray, or fan noise |
| Polar Pattern | Omnidirectional (indoor) / Uni-directional (marine/vehicle/industrial) | Omni for 360° coverage in fixed installs; Uni for focused pickup in noisy environments |
| Termination | Solder pad, wire lead, or pin type — sealed at connection point | Ensures moisture does not enter through solder joints or connectors |
| Application | Model | Size | Sensitivity | Key Protection Feature |
|---|---|---|---|---|
| Bathroom Call | ECM-F6027AL48-SBC | 6×2.7mm | -48dB | Sealed structure + anti-condensation |
| Elevator | ECM-B4015AL38RC-L10 | 4×1.5mm | -38dB | Wire lead sealed + EMI resistant |
| Parking Garage | ECM-F6027AP-40 | 6×2.7mm | -40dB | Pin type sealed + anti-reverberation |
| Marine Radio | ECM-DMP-21F | 31.5×16.2mm | -60dB | Marine-grade waterproof + salt fog resistant |
| Vehicle Dispatch | ECM-DM2025K600 | 20.4×24.9mm | -61dB | Dynamic, vibration + moisture resistant |
| Outdoor Emergency | ECM-F6027AL43-L30 | 6×2.7mm | -43dB | Compact, weather-resistant, voice boost |
Spray test (cleaning/rain simulation) · Condensation test (humidity cycling) · Immersion test
(IP67 equivalent)
Requirement: No acoustic degradation, no seal failure after testing.
5% NaCl concentration · 35°C · 48 hours continuous exposure
Requirement: No housing corrosion, no internal damage, acoustic specs
maintained.
Temperature range per model specifications · 0-95% RH · Extended duration
Requirement: No sensitivity shift, no seal deformation, no moisture ingress.
Pull test on wire leads · Aging test under humidity for pin/solder joints
Requirement: No loose connections, no moisture ingress at termination points.
Choose by your environment — no complex calculations.
Request samples, custom sealing solutions, or volume pricing