• Microphone
  • Measurement condenser microphone

High Temperature Microphone (250 °C)
TYPE 7412/4412/4012

  • JPY 440,000

    Microphone Power Supply TYPE 5001:JPY 150,000
  • TYPE7412_4412_4012英②

About the product

1/2 inch high temperature microphone Type 7412 has excellent heat resistance and by using the high temperature joint adaptor Type 4412 it enables accurate measurement under wide temperature range of -10 °C ~ +250 °C.

Measurements and tests for automobile and aircraft, etc. are performed under various environmental conditions and requires high durability for instruments used for measuring and testing.
Type 7412 / 4412 is effective for measurement of operational sounds in the engine room or transmission under high temperature condition, measurements in the plant in high temperature environment or when high temperature experiments are needed for research and development.

Product Specifications

TYPE 7412
TypeFree field
Diameter1/2 inch
Sensitivity-40 dB re 1 V/Pa
(10.0 mV/Pa)
Polarization voltageDC +200V
Frequency range20 Hz ~ 20 kHz
Maximum sound pressure level150 dB
Self-noise level42dB(A)
Temperature coefficient0.02 dB/°C max.
Operating temperature / humidity range -10 °C ~+250 °C, 90 %RH max.
(without condensation)
Dimensions / weightΦ13.2 mm × 12.6 mm,
approx. 6 g
1/2 inch Preamplifier TYPE 4012 (including high temperature joint adaptor Type 4412)
Diameter1/2 inch
Sensitivity-2.1 dB
Frequency range20 Hz ~ 20 kHz
Maximum output voltage7Vrms
Self-noise level45 μV(A) max.
Output impedance50 Ω max.
Preamplifier drive voltageDC +28 V
Operating temperature / humidity range-10 °C ~ +50 °C, 90 % RH max.(without condensation)
Cable3 m3 m
Preamplifier side connectorR03-PB5M (Tajimi 5 pins, female)
Output side connectorFGG.1B.307.CLCD42Z (LEMO 7 pins, male)
Dimensions / weightΦ12.7 mm × 98.5 mm, approx. 40 g
※excluding cable
1/2 inch High Temperature MicrophoneTYPE 74121 ea
High temperature joint adaptor
TYPE 44121 ea
1/2 inch Preamplifier
(including cable 3 m)
TYPE 40121 ea