AEMC 2121.23 / CA872 Non-Contact Infrared Thermometer
Sound Level Meter Model CA832
The Sound Level Meter Model CA832 is designed to assess sound ambiences or nuisances in accordance with international safety and quality standards. It complies with standard IEC 651.
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- Description
Description
The Model CA832 is a portable, compact instrument with a 2000-count backlit LCD. It is designed for simple, one-hand operation and may be fitted on a tripod for long duration measurements. It features two weighting curves A and C for measurement, integrating the sensitivity of the human ear according to sound frequency. Curve A is the general-purpose curve in an industrial environment, and C is more suited for measuring low frequency sounds. Also, mode “F” (fast response time) corresponds to the response time of the ear. Mode “S” (slow response time) can be used to obtain a uniform reading when the sound signal level shows fluctuations.
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The CA872 is a non-contact infrared thermometer with a laser aiming guide.
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It is designed for one-hand operation, aimed at measuring surface temperature of objects from a safe distance (without touching).
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According to the user manual, it includes a 9 V battery, protective holster, and built in sensor.
 Key Specifications
Here are the main technical details:
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Temperature range: −20 °C to +260 °C (or −4 °F to 500 °F).
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Accuracy: ±2% of reading or ±3 °C (±6 °F), whichever is greater (in the ambient 18-28 °C range).
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Emissivity: fixed at 0.95 (i.e., assumes target surface emissivity is 0.95).
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Response time: about 1 second.
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Field of view (FOV): 10:1 (distance to target diameter ratio) meaning if you’re 10 inches away, the instrument sees about 1 inch diameter target.
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Laser guide: yes — <0.5 mW, 670 nm wavelength.
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Power: 9 V battery. Dimensions approx 173 × 60.5 × 38 mm, weight about 183 g including battery.
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Safety/enclosure: Indoor use, not waterproof/dustproof (per manual).
