Handheld Digital Illuminance Meter Professional Light Meter Luxmeter Supplies

Description

Handheld Digital Illuminance Meter Professional Light Meter Luxmeter Supplies
Features:
Made of high quality ABS material, it is durable, wear-resistant and can be used for a long time.
With data display screen, accurate and clear reading, sensitive response, easy to use.
The measuring range is wide, with gearshift device, low power consumption and long service life.
Professional high-precision measurement and testing tools, with maximum and minimum reading retention function, automatic measurement function.
The method is simple and suitable for schools, workplaces and various visible light environments.
Specification:
Condition: 100% Brand New
Material: ABS
Power Supply: 2 x AAA Battery (Battery Not Included)
Weight: Approx. 157g / 5.5oz
Size: Approx. 60x160x25mm / 2.4x6.3x1.0in
Package List:
1 x Light Meter (Battery Not Included)
Illuminometer measurement principle:
Photovoltaic cells are optoelectronic components that convert light energy directly into electrical energy. When the light hits the of the selenium photo cell, the incident light passes through the metal thin film 4 to the interface of the semiconductor selenium layer 2 and the metal thin film 4, and a photoelectric effect is generated at the interface. The magnitude of the potential difference is proportional to the illuminance on the light-receiving of the photocell. At this time, if an external circuit is connected, a current will pass, and the current value is indicated from the micro-ampere meter with the Lx scale. The magnitude of the photocurrent depends on the of the incident light and the resistance in the loop. The illuminance meter has a shifting device, so it is possible to measure high illuminance or low illuminance.
Spot Wholesale Auto Range Handheld Digital Illuminance Meter Photometer Brightness Meter Photometer HS1010
The steps of using the illuminometer:
1. Turn on the power.
2. Open the photodetector cover and place the photodetector horizontally in the measurement position.
3. Select the appropriate measuring gear.
If only "1" is displayed at the left end of the display, it means that the illuminance is excessive. You need to press the range button (8 button) to adjust the measurement multiple.
4. The illuminometer starts working and displays the illuminance value on the display.
5. The display data on the display constantly changes. When the display data is stable, press the HOLD button (8 button) to lock the data.
6. Read and record the observations displayed in the reader. The observed value is equal to the product of the displayed number and the range value in the reader.
For example, the screen displays 500, the lower right corner displays the status as ''x2000'', and the illuminance measurement value is 1000000lx, which is (500x2000).
7. Press the lock switch again to cancel the reading lock function.
8. For each observation, read three times in succession and record.
9. After each measurement is completed, press the power switch to turn off the power.
10. Close the photodetector cover and put it back in the case.
Note:
1.Please allow 0-1 inch error due to manual measurement. Thanks for your understanding.
2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.
We accept PayPal .
We ship item to your PayPal verified address.
Payment must be received within 3 days from the date of purchase.
All the items will be dispatched within one business day by Airmail after the payment is clear.
Most times you will receive your order within 10-30 business days after we transfer your package to the delivery company. We cannot guarantee the delivery timeframe if the post office has any unexpected delays due to holiday, weather, customs, or other conditions. Some countries like Russia, Brazil, or some European countries may take up to 50 days or longer for delivery.
We appreciate your patience if you haven't received items in 30 days(Russian customers may need more patience by reason of the local delivery system and/or customs). If you are concerned in any way, please feel free to contact us via ebay message
instead of leaving negative/neutral feedback or opening a dispute
.
We will make every effort to fix any problem(resend or refund any missing item).
Customs duty is obligation and liability of
citizen
s in your country, so buyer should be responsible for any tax and custom duty incurred. Generally, the delay or failure delivery is sometimes caused by the policy of different customs.
1. Our listing price includes the value of goods,packaging cost,and export
taxes,not including international duties.
2. duties,taxes,and charges are not included in the item price or shipping fee.
3.
T
he duties are buyers' responsibility
.Please check with your country's
customs office determine what these additional costs will be prior to your
purchase.
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