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UV Energy Meter “Linshang” Model LS128

LS128 UV Energy Meter


Main Application:

§  Special for UV LED (365, 385, 395, 405nm, etc.)

§  UV intensity measuring range of 40000 mW/cm²

§  Record UV intensity, energy, temperature and curing time together


Product Introduction:

LS128 is a professional UV energy meter for testing UV LED light sources and has various

excellent achievements:

§  The first UV energy meter for UV LED light source testing.

§  The first wide-range UV energy meter with a range of 40W/ cm².

§  The first UV energy meter for a wide spectrum (340nm-420nm).

§  The first UV energy meter that measures temperature and power at the same time

     and can display process curves.




LS128 UV Energy Meter


Light intensity, energy and temperature measurement of UV LED light sources

Spectral range

340nm – 420nm, calibrated at 395nm UV LED light sources

Irradiance measuring range

0 - 40000 mW/cm²

Irradiance resolution

1 mW/cm²

Energy measuring range

0 – 999999 mJ/cm²

Energy measuring accuracy

+/-10%, +/-5% (typical)

Temperature measuring range

-55ºC - 125 ºC

Sampling speed

2048 times/second

Irradiance data storage interval

32 times/second

Temperature data storage interval

2 times/second

Recording period

32 min

Power supply

2 AAA alkaline dry batteries


240 * 160 Dot matrix LCD

Test Hole Diameter

Ø 10 mm


Diameter 120 mm * Thickness 13 mm


327 g



Two measurement modes available

There are two measurement modes. One is Manual mode which needs to start up or end of

measurement manually. Another is automatic modes that can automatic switch-on or end of

measurement when the energy intensity emitted by the light source is above or below the

trigger threshold that can be set


Four interfaces help you record the data of UV light source

There are four interfaces to help you know better about UV light source you tested: In maximum

values interface, you can acquire cumulative energy value, maximum power value and

maximum temperature value. Measurement time can be recorded in RT interface. In temperature

and power curve interface, you can know the temperature change and energy intensity variation

of the light source. Four interfaces can be switched freely.


High temperature resistant

Built-in heat shield, high temperature resistant design. The UV energy meter can run in the

environment of 100 degrees Celsius for a 2 hours long time.


Wide spectral response range

With wide spectral response range, the UV power puck can test UV LED light source with any

peak in the range of 365nm – 405nm


Powerful PC software

The LS128 UV Energy Meter can be connected to PC software, which allows you to generate

reports and print out test results, as well as to export test data.


This product was added to our catalog on Wednesday 10 May, 2023.
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Nanomachinery Co., Ltd.
4, Soi Petchkasem 100 ,Phetchkasem Rd. ,Bangkaenue ,Bangkae ,Bangkok, 10160, THAILAND.
Tel : 086-322-6876 ,02-421-9927 ,Fax : 02-809-2591 E-mail : pongthorn@nano-machinery.com
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