As a professional UV light meter manufacturer, we have developed several UV radiometers for a variety of applicable industries during the last 12 years since the foundation of Linshang. Boasting a leading research and development team and a mature, stable quality management system, Linshang has the confidence that every UV light meter can meet the user's needs According to the ultraviolet wavelength (UV-A, UV-B, UV-C, UV-V) and the type of UV lamp (high pressure mercury lamp, LED light source, etc. ), our UV light meters can be divided into a variety of models

UV Light Meters

LS126C UV Light Meter

Special for 254nm low-pressure mercury lamp

Record UV radiation intensity and dosage
Monitor real-time radiation intensity through the mobile APP
Provide PC software

LS126C UV light meter is a professional instrument for measuring the intensity of UVC germicidal lamps. The UV radiometer is delivered with a 1-meter test hook in accordance with the 1-meter test requirements specified in the “WST 367-2012 Regulation of disinfection technique in healthcare settings” to ensure full compliance with the test standards. The LS126C UVC light meter has a Bluetooth data transmission function. After connecting with the mobile phone APP, it can monitor the intensity of the germicidal lamp in real time from a certain distance to avoid UV burns during the test.

Parameter

Parameter	LS126C UV Light Meter
Spectral response	230nm-280nm, λp = 254nm
Measuring range	0 – 20000 μW / cm²
Resolution	0.1μW / cm²
Relative indication error	±8%(relative to NIM standard)
Long wave response error	<60%
Cosine characteristics (directional response) error	10%
Linearity error	±1%
Short-term instability	±1%( 30min after startup)
Fatigue characteristics	attenuation <2%
Error of zero	±0.1% of full scale
Response time	<0.5 seconds
Sampling speed	2048 times/second
Test hole diameter	￠=10mm
Power value storage interval	1s/10s/60s optional
Recording period	10 min / 100 min / 600 min
Bluetooth transmission distance	50 meters (open space)
Instrument size	148mm ×76mm ×26mm (LWH)
Probe size	Diameter 39mm × thickness 15mm
Probe wire length	1 meter
Weight	About 300 g
Display	240*160 dot matrix LCD
Battery	4 AAA alkaline dry batteries
Operating Temperature	0° to 40°C, <85% RH

LS129 UV Digital Probe

Monitor UV intensity and energy in real time

Support MODBUS communication protocol
Provide RS485 communication interface
Connecting to PLC/Computer for easy automation integration
Small size for installation

Probe Parameter

Depending on the UV spectrum range and application industry, Linshang has launched three different UV digital probes to choose from, namely LS129-UVALED, LS129-UVA and LS129-UVC. The following table shows the relevant parameters of the three digital probes.

Probe Model	LS129-UVALED	LS129-UVA	LS129-UVC
Spectral response	340nm-420nm, calibrated at 395nm	315nm-400nm, λp =365nm	230nm-280nm, λp =254nm
Power measurement range	0-20000mW/cm²	0-2000mW/cm²	0-20000μW/cm²
Energy measurement range	0 – 4 × 10⁹ mJ/cm²		0 – 4 × 10⁹ μJ/cm²
Resolution	1mW/cm²	0.1mW/cm²	1μW/cm²
Measurement accuracy	±10 %
Sampling speed	2048times/s
Data fresh cycle	200ms
Test light hole diameter	￠10mm
Communication line length	1m, resistant to high temperature of 200℃
Detector line length	0.5m, resistant to high temperature of 200℃		Integrated
Communication interface	RS485
Communication protocol	MODBUS
Supply voltage	DC 5V-24V 20mA
Operation temperature	-25℃- 85℃ (Humidity less than 85%, no condensation)
Controller size	72.53215.1(mm)
Probe size	351514.5(mm)		352316.7(mm)

Communication Parameters

1. Station No

The LS129 smart digital probe supports the standard MODBUS protocol. The default communication address is “1”. You can modify the probe communication address through the “Human Machine Debugging Tool” or the communication protocol. The address setting range is 1-247.

2. Baud rate

The default baud rate of the UV digital probe is 9600bps. The baud rate can be modified through the “Human Machine Debugging Tool” or communication protocol.

3. Protocol

Supports the standard MODBUS protocol. You can read the measurement data, set the communication address and baud rate through the communication protocol. For detailed communication commands, please refer to “LS129 Digital Probe Communication Protocol”.

4. Probe wiring

Wire color	Function
Black (with heat-shrinkabletube)	Shielded wire
Red	Positive power（DC 5-24V）
Black	Negative power
Green	RS485-
White	RS485+

Feature

Adopt RS485 communication interface, Support MODBUS communication protocol

This UV intensity probe adopts standard RS485 communication interface and MODBUS communication protocol. It is equipped with high temperature wire capable of withstanding temperature of 200 ℃, which can realize online monitoring in real time for a long time

Whole probe is exquisite and compact, Detector and controller is seperate

The LS129 UV digital probe has a very small size, and the detector and controller adopt a split design, which is very convenient for installation where measurement is needed. It is also possible to combine the detector and controller with screws for measurement

Ultra-wide power supply range

The probe is powered by a 5-24V ultra-wide DC power supply range, which is very convenient for use in different industries on spot

Free computer debugging software for communication protocol debugging.

There are two kinds of RS485 negative communication cable in green and blue, please refer to the actual color of the received goods

LS125 Multi-probe UV Light Meter Host

Support 9 different probes for UVA, UVB, UVC, etc.
Record UV power, UV energy and test duration together
Automatic statistics of maximum, minimum and average power

LS125 is a smart host that can support 9 different probes. It can intelligently identify different probes. This host is connected to the probe through an aviation plug. The main function of the host is to display test data. The host equipped with the probe can be used for ultraviolet intensity and energy detection. To use the host, you need to buy the corresponding probe to use with it as per your test requirements.

Parameter

Parameters	LS125 UV Light Meter
Weight	About 194g
Dimension	148mm × 76mm × 26mm (LWH)
Display	240*160 dot matrix LCD
Power supply	4 AAA alkaline batteries
Probe connection	Push pull (Snap-in style)，Aviation socket

Application

Ultraviolet light includes UVA band (315nm-420nm), UVB band (280nm-315nm) and UVC band (230nm-280nm). UVA band is mainly used in photocuring, lithographic exposure, ultraviolet light source, integrated circuit lithography and other industries; UVB band UV lamps mainly include physiotherapy lamps in hospitals and health care places, plant growth lamps and UVB fluorescent lamps for reptiles; UVC band also known as short-wave sterilization ultraviolet, ultraviolet germicidal lamps emit UVC short-wave ultraviolet. Ultraviolet germicidal lamps are mainly used for disinfection and sterilization. They are often used in hospitals, transfer windows of drug factories, disease control centers and sewage treatment plants. The LS125 handheld UV measurement device is widely used. Many of the above industries require different ultraviolet probes to detect the radiation intensity or energy value.

Probe Selection

According to the spectral response range, application, measuring range and test aperture size of the light source, we have introduced 9 different types of probes (probe must be purchased separately). The selection table is as follows:

Select according to the spectral response range and application of the light source

No.	Probetype	Spectral response range	Power range	Test aperture	Application	Link
1	UVC-X0	230-280nm	0 – 200000 μW/cm²	￠10mm	254nm UV sterilization mercury lamp	More details
2	UVCWP-X1	230-280nm	0 – 200000 μW/cm²	￠10mm	254nm UV sterilization mercury lamp,waterproof	More details
3	UVCLED-X0	240-320nm	0 – 200000 μW/cm²	￠10mm	260nm-285nm UV LED germicidal lamp	More details
4	UVB-X0	280-315nm	0 – 200000 μW/cm²	￠10mm	General UVB intensity and energy measurement	More details
5	UVA-X0	315-400nm	0 – 2000 mW/cm²	￠10mm	High pressure mercury lamp in UV curing industry	More details
6	UVA-X1	315-400nm	0 – 200000 μW/cm²	￠10mm	General UVA intensity and energy measurement	More details
7	UVALED-X0	340-420nm	0 – 20000 mW/cm²	￠10mm	Area light source of UV LED in UV curing industry	More details
8	UVALED-X1	340-420nm	0 – 20000 mW/cm²	￠1mm	Point light source of UV LED in UV curing industry	More details
9	UVALED-X3	340-420nm	0 – 200000 μW/cm²	￠10mm	General UVA+UVV LED, low power measuring range	More details

Suggestion of Probes for Classic Industry Application

No.	Application	Suggested Probe
1	Detect UV aging box	UVA-X1、UVB-X0
2	Detect ambient light and sunlight	UVA-X1、UVB-X0
3	Detect welding arc	UVA-X1、UVB-X0、UVC-X0
4	Detect UV light of non-destructive testing	UVA-X0
5	Detect UV Nail Lamp	UVALED-X3
6	Detect plant growth lamp or reptile lamp	UVB-X0

Free to match 9 types of probes

LS125 host and probe are linked by aviation plugs. One host can intelligently match 9 different UV probes to meet different test needs

LS125 UV Light Meter +UVCWP-X1 Probe

Suitable for the testing of high-power germicidal lamp in water treatment industry

Spectral response: 230nm-280nm, λp = 254nm
Waterproof, the probe can be submerged to the depth of 1 meter
Large power range , the maximum measurement power up to 200000μW/cm²

The LS125 UV light meter is a smart host that can support 9 different types of probes. Its main function is data display. The UVCWP-X1 probe is one of the 9 probes equipped with the LS125 host. The probe’s spectral response range is 230nm-280nm, the peak wavelength is 254nm. This UV radiometer is waterproof to 1 meter deep. It is a probe specially developed for water treatment high-power germicidal lamps.

Application

Water treatment is divided into wastewater treatment, urban water supply treatment, drinking water treatment, purified water treatment, and agricultural wastewater treatment. There are two methods of water treatment. The first is to put sterilization lamps into the water to sterilize. The second method is to sterilize the lamp in a sleeve. Because the water flow rate is too fast, the germicidal lamp time is sometimes less than 1 second, so a high-power germicidal lamp or a longer ultraviolet lamp is required to sterilize. LS125 + UVCWP-X1 waterproof light meter is a professional instrument for detecting water treatment germicidal lamps.

If you want to know about other types of probes supported by the LS125 UV light meter host, please click “LS125 Multi-Probe UV light meter Host” for details

Parameters

Parameters	UVCWP-X1 Probe
Spectral response	230nm-280nm, λp = 254nm
Power measuring range	0 – 200000μW / cm²
Resolution	0.1μW / cm²
Energy measuring range	0-9999999μJ/cm²
Record time	0-99999s
Measuring accuracy	±10%
Sampling speed	6 times/second
Unit	μW / cm² (default), mW / cm², W / m²
Test Hole Diameter	￠=10mm
Probe size	Diameter 50mm × thickness 20mm
Waterproof depth	1m
Packing box dimension	24 * 6 * 5 cm (L * W * H)

Large power range , the maximum measurement power can reach 200000μW/cm²

Large-scale measurement, the maximum power can be measured to 200,000 μW / cm²

Data Statistics

The probe can intelligently statistics the real-time value, maximum value, minimum value and average value of the power, record the measurement time.All these values can be displayed in the screen at the same time