LS137 UV Energy Meter - High Precision Radiometer for UVA LED Light Sources



Upgrade your UV measurement accuracy and efficiency with the LS137 UV Energy Meter, designed for precision and reliability in various industrial applications.

Simultaneous Display: Shows UV intensity, UV energy, and temperature values all at once.

Wide Wavelength Range: Measures wavelengths of 365nm, 375nm, 385nm, 395nm, 405nm, and other UVA LED light sources.

Versatile Applications: Ideal for UV dryers, curing machines, UV coating machines, exposure machines, printing machines, and more.

High Measurement Range: Capable of measuring up to 40,000mW/cm².

Slim Disc Design: Features a sleek, lightweight design for easy handling.

High Temperature Protection: Equipped with a high-temperature protection cover, making it suitable for high-temperature environments.


1. Wide spectral response range of 340nm-420nm, suitable for measuring UV LED light sources.

2. Simultaneous measurement of energy value, power value and temperature.

3. Thinner at only 7.6mm and lighter in weight for measurements in narrow spaces.

4. Automatic and manual measurement modes can be selected.

5. With high temperature protection cover, it can operate for a long time in high temperature environment.

6. 2048 times/sec high-speed sampling, fast acquisition frequency to make UV energy meter more accurate.

7. Built-in temperature detector and timer, real-time display of temperature and measurement duration.


1. Spectral range: 340nm - 420nm, calibrated at 395nm LED light source

2. Power measuring range: 0-40000mW/cm²

3. Power resolution: 1mW/cm²

4. Energy measuring range: 0-999999mJ/cm²

5. Energy measuring accuracy: ±10%, ±5% (typical)

6. Sampling speed: 2048 times/second

7. Recording period: 32 min

8. Power supply: Rechargeable lithium battery 3.7V@400mAh

9. Display: 128X64 Dot matrix OLED

10. Dimension: Diameter 102mm* thinkness 7.6mm

11. Weight: 136g

Packing List

1. LS137 UV energy meter *1

2. USB cable *1

3. DC5V power adapter *1

4. User manual *1

5. Certificate/Warranty card *1

6. High temperature protective cover *1

7. Plastic engineering box *1

Free Shipping

Under normal circumstances we offer free shipping on all orders, you will see the free shipping option in your cart at checkout. There is no choice of carrier for free shipping, but typically we will ship your order will likely ship using either USPS or FedEx. Full Shipping Policy

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.). Full Returns Policy

When Will My Order Ship?

For Standard Shipping, we aim to pack and ship out your order within 3 business days. During special periods, such as heavy order processing or local inventory shortages that require deployment, please expect it to take an additional day or two for processing.
We ship five days a week, Monday through Friday. Sometimes our mail pickup comes in early afternoon, so tracking for orders shipped later that day may not update until the following business day.
You will receive a shipment confirmation with tracking information via email when your order has shipped. Once you receive this email, we cannot change or cancel your order.

Can I Change The Shipping Address On My Order?

Please contact us immediately via email if you realize that you gave us the wrong shipping address — if it hasn't shipped yet, we might be able to correct it before it goes out the door.
If your order ships to the address provided and is returned to us as undeliverable, then you are responsible for paying the cost of shipping again to resend it to you. If you decide you do not want your order reshipped, we'll refund you for the products less the original shipping charges, once your order returns to our warehouse. We'll reach out to you to coordinate your options before re-shipping.
If your order ships to an incorrect address provided at the time the order is placed and is not retrievable, we are not responsible and cannot offer reimbursement.

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LS137 UV Energy Meter - High Precision Radiometer for UVA LED Light Sources
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