Measurement TEDS Microphone 'MI-1271M12'

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last updated：Feb 10, 2026

ONOSOKKI

No more tedious calibration work with TEDS support! Measurement microphones MI series.

The "MI-1271M12" consists of a free-field type 1/2-inch electret condenser microphone that complies with IEC 61094-4 Type WS2F and a preamplifier. By adopting a titanium diaphragm for the microphone and improving electret performance, it achieves long-term stability and a wide frequency range from 1Hz to 20kHz. It can also be used in a wide temperature range from -30°C to +80°C. When connected to TEDS-compatible equipment, information such as sensitivity is automatically read, eliminating the need for cumbersome calibration work, enabling reliable measurements and time savings. 【Features】 ■ No need for cumbersome calibration work with TEDS compatibility ■ Achieves long-term stability and a wide frequency range from 1Hz to 20kHz ■ Usable in a wide temperature range from -30°C to +80°C ■ Can be directly connected using a BNC cable to equipment equipped with CCLD (constant current drive) power supply *For more details, please refer to the PDF document or feel free to contact us.

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【Specifications】 ■Response Type: Free Field Type ■Sensitivity (1 kHz): -26.0± 1.5 dB re.1 V/Pa (50 mV/Pa) ■Frequency Range (1 kHz Reference): 1 Hz to 20 kHz (±2 dB) ■Maximum Sound Pressure Level (250 Hz, Total Harmonic Distortion 3%): 135 dB or more ■Self-Noise Level: Frequency Weighting Characteristic A: 14.0 dB (Typical Value) 　　　　　　　　　Frequency Weighting Characteristic Z: 34.3 dB (Typical Value) ■Static Pressure Characteristic (250 Hz): -0.013 dB/kPa ■Temperature Characteristic (250 Hz): +0.005 dB/K ■Humidity Characteristic (250 Hz): -0.0004 dB/% ■Long-term Stability: 0.03 dB/year or less (under standard environmental conditions) 　　　　　　　0.30 dB/year or less (80 ℃, 23% RH) ■Operating Temperature Range: -30 to +80 ℃ ■Weight: Approximately 41 g *For more details, please refer to the PDF document or feel free to contact us.