Author

Akiko Arevalo - Marquez Charter School, Pacific Palisades, CA

Sensor / Probe

Etekcity Lasergrip 800 Non-contact Digital Laser IR Infrared Thermometer Temperature Gun

Features

1.Laser targeting system for more precise aiming;

2.Greater distance-spot ratio offers accurate results at longer distances;

3.Safely measure hazardous or inaccessible objects;

4.Standard 9V battery offers 14 hours of cumulative use;

5.Auto-shutoff after 15 seconds to increase battery life;

6.Instant-read-display on LCD in less than 0.8 seconds

Specifications

Temperature Range: -58℉～1382℉(-50℃～750℃ )

Accuracy: ±2%

Distance Spot Ratio: 16:1

Emissivity Adjustable: 0.95(fixed)

Response Time and Wavelength: 500ms and (8-14)um

Repeatability: ±1% or±1℃

Resolution: 0.1℃ or 0.1℉

Sample Investigation I:

Determine the effectiveness of solar oven by measuring the temperature inside the oven before closing the cover, and then measure the inside temperature again, after the cover has been closed for a few minutes.

Sample Data & Analysis and Interpretation I:

DATA: To view spreadsheet data, click HERE:

INTERPRETATION: Closing the clear cover allowed the light and heat energy to enter the solar oven, but prevented the heat from escaping. Therefore, the temperature increased by 11 degrees Celsius in 13 minutes.

Sample Investigation II:

Determine whether or not the color of paper changes the amount of energy absorbed in the form of light.

Sample Data & Analysis and Interpretation II:

DATA: To view spreadsheet data, click HERE:

INTERPRETATION: The black construction paper absorbed more light, and in turn, more energy. Therefore, the temperature of the black paper was 1 degree Celsius higher.

Photos

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