UVTRON 是紫外线开/关探测器，可快速远距离检测火焰发出的微弱 UV，因而适合用于火焰探测器和火警。它们的光谱灵敏度范围是 185 nm 到 300 nm，且对可见光完全不敏感。它们使设计具有简单电路的高灵敏度、快速响应的 UV 检测系统成为可能。
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