F358 UV Light Meter – Accurate and Comprehensive UV LED Measurement
The F358 UV Light Meter is a professional measurement device developed to meet the growing demand for precise control of UV intensity and energy in modern UV LED curing systems. With the ability to simultaneously measure four wavelength ranges—UVA, UVB, UVC, and UVV—the device enables manufacturers to accurately evaluate UV light source performance, ensuring consistent product quality and stable production processes.
1. Overview of the F358 UV Light Meter
The F358 UV Light Meter is a multi-spectrum UV measurement instrument capable of simultaneously measuring UV power, accumulated UV energy, and temperature throughout the irradiation process. Unlike conventional single-wavelength meters, the F358 analyzes each spectral band independently, allowing users to precisely assess the compatibility between UV LED light sources, materials, and curing technologies.

The device is mainly used for inspection and calibration of UV LED curing systems, where strict control of irradiation energy is required to prevent incomplete curing or material damage caused by excessive energy exposure.
2. Technical Specifications of the F358 UV Light Meter
The table below provides a comprehensive overview of the measurement capabilities of the F358 UV Light Meter, supporting easy comparison and selection.
| Item | Specification |
|---|---|
| Application | Measurement of UV LED intensity, energy, and temperature |
| UVA spectral range | 320 – 380 nm |
| UVB spectral range | 280 – 320 nm |
| UVC spectral range | 220 – 280 nm |
| UVV spectral range | 380 – 440 nm |
| Power measurement range | 0 – 40,000 mW/cm² |
| Power resolution | 1 mW/cm² |
| Energy measurement range | 0 – 999,999 mJ/cm² |
| Energy measurement accuracy | ±10% |
| Temperature range | -55 – 125 °C |
| Sampling frequency | 2,000 Hz |
| Power data logging frequency | 32 Hz |
| Temperature data logging frequency | 2 Hz |
| Power supply | 2 × AAA batteries |
| Dimensions | Ø118 mm × 13 mm |
| Weight | 300 g |
3. Key Features of the F358 UV Light Meter
One of the most significant advantages of the F358 UV Light Meter is its ability to measure multiple parameters simultaneously within a compact device.
The instrument integrates a high-precision temperature sensor, enabling real-time temperature measurement during the UV curing process. This is particularly critical for heat-sensitive applications, where excessive temperatures may cause material deformation or quality degradation.
With thermal insulation design and heat resistance up to 100 °C, the F358 operates reliably in harsh industrial environments. In addition, its large internal memory allows continuous storage of power and temperature data for up to 30 minutes without data loss, even when the device is powered off.
Another notable feature is that upon startup, the F358 UV Light Meter automatically displays data from the previous measurement, making it easy for users to compare results and track changes in UV source performance over time.
4. Operating Instructions for the F358 UV Light Meter
Power On / Off
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When the device is off, press and hold the ON/OFF button to power on
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When the device is on, press and hold the ON/OFF button to power off
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On the main interface displaying “MAX,” the device will automatically shut down after 1 minute of inactivity
Basic Measurement Operation
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In “MAX” mode, briefly press ON/OFF
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The screen displays “A New Measurement? YES / NO”
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Press SELECT to start a new measurement
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When “RT” appears, measurement begins and previous data is cleared
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Place the F358 UV Light Meter under the UV light source with the sensor facing directly toward the source
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After measurement, briefly press ON/OFF to stop and view results
The maximum standby time in RT mode is 50 minutes, with data storage available for up to 30 minutes.
Calibration Factor Adjustment
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When powering on, press and hold SELECT to enter the calibration interface
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Press SELECT to choose the parameter to adjust
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Press ON/OFF to change the value
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Press and hold SELECT to save and return to the main interface
Viewing the Power Curve
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In MAX mode, press SELECT
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The device displays maximum value, minimum value, and the UV power curve graph
5. Important Usage Notes
To ensure measurement accuracy and extend device lifespan, please observe the following:
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Ensure the sensor window faces directly toward the UV light source
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Always turn off the device when not in use
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Avoid high-humidity environments and corrosive chemicals
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Store the device in its protective case after use
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Annual calibration is recommended
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The UV sensor is highly sensitive to moisture and should be stored in a dry environment
Conclusion
With multi-wavelength measurement capability, integrated temperature monitoring, and intelligent data storage, the F358 UV Light Meter is an essential tool for companies using UV LED technology. The device not only supports effective quality control but also helps optimize processes, reduce risks, and improve long-term production efficiency.
Consultation & Quotation
Do you need detailed consultation on the F358 UV Light Meter for your UV LED production line?
Contact: Ms Yuna
📞 Hotline: +84 965 535 345
✉️ Email: sales03@cousz.com

F358 UV Light Meter
The F358 UV Light Meter measures UVA, UVB, UVC and UVV accurately, helping ensure stable UV LED curing performance and product quality.
Product SKU: UVNETERF358E
Product Brand: COUSZ
Product Currency: VND
Product Price: 2222
Price Valid Until: 2025-12-31
Product In-Stock: InStock
中文 (中国)
Tiếng Việt

admin –
Contact now for technical support!
Ms Yuna
📞 Hotline: +84 965 535 348
✉️ Email: sales03@cousz.com
Brian –
Very professional service.