+44 130 677 0855
Email
+44 130 677 0855
Email
+44 130 677 0855
Email
The delivery price is calculated during checkout based on your location and the goods ordered. Our basic delivery prices are:
Delivery within Australia: $19.20 to $48.00
Delivery Service: Five working days*
* For products that are in stock and the order received by midday.
Some products go through a final configuration and calibration before being shipped. If the calibration labs are busy this can add up to two days on to the delivery schedule but guarantees a fresh calibration.
These 1/2" prepolarised free field microphone capsules are suitable for use with professional grade Class 1 and Class 2 Sound Level Meters. Each capsule is supplied with a calibration chart.
All of the microphones in this range are based on the same technology, ensuring mechanical compatibility.
The microphones offer excellent long term stability and temperature stability, making them suitable for hand-held instruments as well as out-door long term noise monitors.
Most of the Cirrus range of sound level meters, including the Optimus Industrial and Optimus Environmental meters are supplied with either an MK224 or MK216 microphone capsule. These microphone capsules are also supplied with the Outdoor Noise Kits and Outdoor Microphone Systems.
The MK224 is a Pre-polarised Electret Condenser 1/2” Freefield Microphone
| Nominal Sensitivity | 50mV/Pa ± 2dB |
| -26dB ± 2dB dB re 1V/Pa | |
| Noise Floor | <15 dB(A) |
| 3dB Points | Low <8Hz, High >20kHz |
| Maximum Level | 146 dB for 3% Distortion |
| Equivalent capacity | 18.5 pF @ 250Hz |
| Equivalent volume | 42 mm3 |
| Temperature coefficient | 0.005 dB/°C |
| Humidity coefficient | 0.003 dB/%RH |
| Pressure coefficient (250Hz) | -0.004 dB/kPA |
| Stability | 1dB in 1 x 105 hours @ 60°C |
| 1dB in 3 x 106 hours @ 20°C | |
| Temperature Range | -10°C to +50°C |
| Humidity Range | 0 to 100%RH |
| Magnetic Field | <30dB equivalent SPL for 80A/m @50Hz |
| Dimensions | IEC 61094-4 Type WS22F |
| Diameter | 12.6 mm with standard grill |
| Height | 17.2 mm with standard grill |
| Mounting Thread | 11.7 mm 60 UNS |
| Grill Thread | 12.7mm 60 UNS |
| Venting | Rear |
The MK216 is a Pre-polarised Electret Condenser 1/2” Freefield Microphone
| Nominal Sensitivity | 50mV/Pa ± 2dB |
| -26dB ± 2dB dB re 1V/Pa | |
| Noise Floor | <18 dB(A) |
| 3dB Points | Low <10Hz, High >13.5kHz |
| Maximum Level | 145 dB for 3% Distortion |
| Equivalent capacity | 18.5 pF @ 250Hz |
| Equivalent volume | 42 mm3 |
| Temperature coefficient | 0.005 dB/°C |
| Humidity coefficient | 0.003 dB/%RH |
| Pressure coefficient (250Hz) | -0.004 dB/kPA |
| Stability | 1dB in 1 x 105 hours @ 60°C |
| 1dB in 3 x 106 hours @ 20°C | |
| Temperature Range | -10°C to +50°C |
| Humidity Range | 0 to 100%RH |
| Magnetic Field | <30dB equivalent SPL for 80A/m @50Hz |
| Dimensions | IEC 61094-4 Type WS22F |
| Diameter | 12.6 mm with standard grill |
| Height | 17.2 mm with standard grill |
| Mounting Thread | 11.7 mm 60 UNS |
| Grill Thread | 12.7mm 60 UNS |
| Venting | Rear |
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