LS128 UV Energy Meter

LS128 UV Energy Meter


I. LS128 UV Energy Meter Introduction

LS128 UV energy meter is the first professional UV energy meter for testing UV LED light sources in the world. Its spectral response range is 340nm-420nm. It can test various wavelengths of 365nm, 375nm, 385nm, 395nm, 405nm and other UV LED lamps. It is the first choice for UV LED Energy meters. Create various first:

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

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

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

  4. The first UV energy meter that measures temperature and power at the same time and can display process curves.

LS128 UV energy meter

II. LS128 UV Energy Meter Parameters


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 - 999999mJ/cm²
Energy measuring accuracy ± 10% , ± 5% (typical)
Temperature measuring range -55°C - +125°C
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
Display 240*160 Dot matrix LCD

Diameter 120mm * Thickness 13mm

Weight 327g

LS128 UV energy meter

III. LS128 UV Energy Meter Characteristics

1. With wide spectral response range, the UV power puck can test UV LED light source with any peak in the range of 365nm-405nm.

UV energy meter
LS128 UV energy meter wavelength

2. Real intelligent UV energy meter, the maximum value, real-time value, temperature curve and power curve can be switched.

LS128 UV energy meter four measurement interfaces

3. Ultra-wide measurement range design, the UV power puck can measure up to 40,000 mW / cm² (40W / cm²) and can test high power UV light source

4. The high-precision and fast-response temperature detector is used to truly measure the actual temperature in the curing machine. 

5. High temperature resistant design with built-in heat insulation sheet, it can run in the environment of 100 degrees Celsius for a long time. Click for more “Use Time of Linshang UV Energy Meter at Different High Temperature''

6. Built-in large-capacity memory.

7. Built-in timer can accurately record the UV curing time.

8. The stored data will not be lost when the power is turned off. The last test data will be displayed automatically when the power is turned on. You need to manually delete the test data.

UV energy meter
 LS128 energy meter display the last recorded data

9. The UV power puck can be connected to the PC software through the USB interface, you can read detailed record data, perform curve analysis and print out test reports.

LS128 UV energy meter test report

10. Long press the power button in the off state to enter into the parameters setting mode, the setting steps are shown as below:

UV light meter measurement mode

IV. Product Qualification and Standards

LS128 UV energy meter patent certificate
LS128 UV energy meter patent certificate

V. LS128 UV Energy Meter Operation Video

1. Operation video

2. Software operation

VI. LS128 UV Energy Meter Packing Details

No Description Quantity  Unit
1 LS128 UV Energy Meter 1 pcs
2 USB able  1 pcs
3 AAA battery  2 pcs
4 Antistatic gloves 1 pcs
5 Cross head screw-river 1 pcs
6 User manual 1 pcs
7 Certificate/Warranty card 1

Plastic box dimension 25*21*7 cm(L*W*H)

1 pcs

LS128 UV energy meter package

VII. LS128 UV Energy Meter After Sales Service

  1. The meter has one-year warranty. If the instrument works abnormally, please send the whole instrument to our company for maintenance

  2. Provide users with spare parts and lifelong maintenance services

  3. Provide the users with the meter inspection service 

  4. Free technical support for long term

Manufacturer: Shenzhen Linshang Technology Co.,Ltd. Website: 

Service hotline: 0755-86263411 Email:

For the UV energy meter selection, please click “UV Energy Meter Selection and FAQ”.