LS126C UVC Split-Type UV Irradiance Meter
LS126C UVC Split-Type UV Irradiance Meter
For UVC germicidal lamps, disinfection equipment and 253.7 nm mercury lamps
The LS126C split-type UVC UV irradiance meter measures irradiance and energy from UVC germicidal lamps, 253.7 nm mercury lamps, disinfection equipment, sterilization chambers and related UV systems. Position the separate probe at the test point while keeping the meter outside the equipment. This design is useful for measurements inside equipment, enclosures and confined spaces where the display is difficult to view directly. Confirm the source wavelength, measurement distance, illuminated area, range and quality-control procedure for each application.
UVC germicidal lamp measurement
Measure irradiance and accumulated energy from 253.7 nm UVC germicidal lamps, disinfection equipment and related applications in healthcare, pharmaceutical production and environmental monitoring. Confirm the source wavelength, measurement distance and equipment layout before testing.
A test hook can be used for UVC germicidal lamp measurements when suitable for the site setup.
Measurement statistics
The display shows real-time power, measurement statistics, elapsed time and test date and time to help operators document UVC source conditions and results.
USB connection and PC software
Connect the meter to a computer through USB and use the PC software to view and organize measurement data and prepare reports. Confirm data-format and reporting requirements with your quality-control workflow.
Automatic shutoff and data storage
Set automatic shutoff from 1 to 10 minutes. Measurement data is retained when the meter turns off, and the latest result can be viewed after restart. The meter stores up to 25 sets of readings for inspections and short-term testing.
Bluetooth data transfer for remote viewing
Bluetooth data transfer can support remote viewing through a compatible WeChat mini program. This can help operators monitor readings without standing beside an operating UVC lamp. Actual availability depends on the device, application and site environment. Remote viewing does not replace shielding, exposure controls or workplace safety procedures.
Remote data viewing requires a compatible WeChat mini program and device. Confirm availability for your setup.
The LS126C is intended for UVC germicidal lamps and 253.7 nm mercury lamps. For UVA LED curing sources or UVA measurements in confined spaces, see the LS126A UVA irradiance meter. For one meter with interchangeable UVA, UVB and UVC probes, see the LS125 UV irradiance meter with interchangeable probes. Confirm wavelength, distance, illuminated area, range and quality-control requirements before selecting a configuration.
Contact Fulcrum about configurationThe following specifications are for reference. Confirm the measurement wavelength, distance, illuminated area, range and applicable quality requirements for your test setup.
| Item | Specification |
|---|---|
| Spectral response | 230–280 nm; peak wavelength λp = 254 nm |
| Irradiance range | 0–20,000 μW/cm² |
| Irradiance resolution | 0.1 μW/cm² |
| Energy range | 0–9,999,999 μJ/cm² |
| Relative indication error | Compared with NIM: H < 50 μW/cm², ±4 μW/cm²; H ≥ 50 μW/cm², ±8%H |
| Long-wavelength response error | <60% |
| Cosine response error | 10% |
| Linearity | ±1% |
| Short-term stability | ±1% after 30 minutes |
| Fatigue error | <2% |
| Zero drift | ±0.1% FS |
| Sampling rate | 6 readings/s |
| Probe aperture | Φ10 mm |
| Power-data interval | Selectable: 1, 10 or 60 seconds |
| Logging duration | 10, 100 or 600 minutes |
| Bluetooth range | Approximately 50 m in an unobstructed area |
| Probe dimensions | 39 × 15 mm |
| Probe cable | 1 m |
| Meter dimensions | 148 × 76 × 26 mm |
| Weight | Approximately 293 g, including batteries |
| Display | 240 × 160 LCD |
| Power supply | 4 × AAA alkaline batteries |
| Operating environment | 0–40°C; <85% RH |
Specifications may be updated by the manufacturer. Please confirm the latest configuration with Fulcrum before purchase or testing.
LS126C Operation Video
UVC Split-Type Irradiance Meter Measurement Demonstration
This video provides an overview of LS126C operation and on-site measurement. The separate probe can be positioned at the measurement point while the meter remains outside the enclosure. LS126C is suitable for UVC germicidal lamps, 253.7 nm mercury lamps, disinfection equipment and sterilization cabinets. For actual testing, confirm the source wavelength, measurement distance, illuminated area, measurement range and site safety procedures.