UV sensor UV-300K
High-performance ultraviolet sensor for production lines, featuring high-durability UV-to-visible light conversion glass.
- Can monitor whether the set light intensity is achieved.
- Real-time monitoring allows for timely detection of bulb aging or faults, facilitating replacement and management. When light intensity changes, signals can be promptly fed back to the controller, which then automatically adjusts to keep the illumination in a stable state.
- There are two operating modes: intensity mode and cumulative mode. The analog signal output is 1–5V voltage / 4–20mA current (standard range). Additionally, there is a Teaching Answer function for sensitivity setting and a back function.
Application scenarios
- Semiconductor manufacturing devices
- Disinfection and sterilization
- Printing
- Air cleaning
- UV curing
- Lighting
- 3D printing
- Medical applications
| Model | UV-300K |
|---|---|
| Operation indicator light | Red LED (Lit when output detection is ON) |
| Measurement range in power※ | UV-T254, UV-T365, UV-L, UV-S [254nm] 0.1–30mW/cm², 0.01–3mW/cm² (high sensitivity head); [365nm] 3–900mW/cm², 0.3–90mW/cm² (high sensitivity head); UV-T405 [405nm] 300–9,000mW/cm² |
| External teaching input / External reset input | ON: 0–1.5V (0 V short circuit current ≤1mA); OFF: Open or 4–30V |
| Light intensity value display (relative value) | 3-digit LED, Light intensity mode: 0–125%, Integral mode: 0–200% |
| Detection output / Answer back output | NPN open collector (DC30V, 100mA or less) |
| Analog output | Voltage/current switching with a switch: 1–5V (0–100%, 6V/125%); 4–20mA (0–100%, 24mA/125%) |
| Detection output Threshold value setting | Set % value by 1% with a switch; Light intensity mode: 10–100%; Integral mode: 10–200% |
| Sensitivity setting | Teaching (Set value by a switch or an external control at 100%); Lowest sensitivity, highest sensitivity, zero-point setting |
| Cable | 0.15mm² shielded 7 core cabtyre cable 5.5mm diam. ×2m |
| Repeat accuracy | ±2% F.S. or less |
| Temperature drift | 0.1% F.S./°C or less |
| Operating environment | −25–+55°C / 35–85%RH (no condensation or freezing) |
| Power supply voltage | DC12–24V±10% (ripple P-P10% or less) |
| Response time | 300ms or less |
| Current consumption | 50mA or less (excluding output current) |
| Weight | Approx. 140g |
UV detection probe
| Model※ | UV-T405 | UV-T365 | UV-T254 | UV-L | UV-S |
|---|---|---|---|---|---|
| Features | Heat resistant | Long sleeve | Short sleeve | ||
| Measurement range in wavelength | 200~330nm, 360~420nm, 455~476nm, 517~600nm | 300~380nm | 170~380nm | ||
| Temperature drift | −0.3%/°C or less (at254nm), −0.1%/°C or less (at365nm), −0.06%/°C or less (at405nm) | −0.1%/°C or less | |||
| Operating environment | −40–+300°C / 35–85%RH (no condensation or freezing) | −40–+150°C / 35–85%RH (no condensation or freezing) | |||
| Material | Ultraviolet-visible wavelength conversion glass, stainless steel | ||||
| Accessories | M6 nuts, washers | ||||
Matching light guide
| Model | UV-H | UV-F |
|---|---|---|
| Features | Heat resistant | Free cut |
| Operating environment | −40–+300°C / 35–85%RH (no condensation or freezing) | −40–+70°C / 35–85%RH (no condensation or freezing) |
| Storage temperature | −40~+70°C | |
| Total length | 2m (including UV protection tube) | 2m (UV protection tube is mounted onto 1m from its end) |
| Material | Borosilicate glass, stainless steel | Acrylic, polyethylene, stainless steel |







![Heat-resistant sensor heads [UV-T254, T405 (without black glass) / UV-T365]](/_astro/uv300k-heat-resistant-probes.BYxhbL2R_ZPqSuu.png)
![Sensor heads [UV-S (L=50±1) / UV-L (L=100±1)]](/_astro/uv300k-long-short-probes.ChP7UFVe_Z1vyjnF.png)
![Light guides [UV-H (top) / UV-F (bottom)]](/_astro/uv300k-guides-dimensions.fMZ7C5hE_ZP7TtA.png)


