TEST CIRCUIT

ENVIRONMENTAL CHARACTERISTICS

1. Sound pressure level and sensitivity shall not change by more than 15dB in temperature range of -20°C

to 60°C, at a relative humidity of 30%.

2. Sound pressure level and sensitivity shall not change by more than 6dB in the humidity of 10% to 90%, at

the temperature of 25° .

3. MOISTURE

Keep the sensor at 40°C±2°C and 90°C to 95°C R.H for 96±4 hours. Then, release the sensor into the room conditions for 24 hour prior to the measurement. It shall fulfill the specifications in Table 1.

4. VIBRATION

Subject the sensor to the vibration for 1 hour each in the X.Y and Z axes with the amplitude of 1.5mm

at 10 to 55 Hz. It shall fulfill the specifications in Table 1.

5. HIGH TEMPERATURE EXPOSURE

Subject the sensor to 80±5°C for 24± 1 hours. then, release the sensor into the room conditions for 1 hour prior to the measurement. It shall meet the specifications in Table 1.

4.6 LOW TEMPERATURE EXPOSURE

Subject the sensor to -30±5°C for 24± 1 hours. Then release the sensor into the room conditions for 1 hour prior to the measurement. It shall meet the specifications in Table 1.

TABLE 1

NOTICE

1.Export Control <For customers outside The People's Republic of China>

No Manorshi products should be used or sold, through any channels, for use in the design, development, production, utilization, maintenance or operation of, or otherwise contribution to

( 1) any weapons (Weapons of Mass Destruction [nuclear, chemical or biological weapons or missiles] or conventional weapons) or

(2)goods or systems specially designed or intended for military end-use or utilization by militar end-uSers.

2. Please contact our sales representatives or product engineers before using the products ir the specification or cataloque for the applications listed below, which require especially high reliability for the prevention of defects which might directly damage a third party's life, body or property, or when one of our products is intended for use in applications other than those specified in this specification.

a) Aircraft equipment or Aerospace equipment

b) Undersea equipment and Power plant equipment

c) Medical equipment and Transportation equipment (vehicles, trains, ships, etc.) d)Traffic signal equipment i Disaster prevention / crime prevention equipment

e) Data-processing equipment including Application of similar complexity and/or reliability requirements to the applications listed above

3. Product specifications and catalogues are subiect to change and our products in them ma be discontinued without advance notice.

Please check with our sales representatives or product engineers before ordering. If there are any questions, please contact our sales representatives or product engineers.

4. Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this specifications in order to prevent smoking and/or burning, etc.

PACKING