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Welcome to Suzhou Greencalm Instruments Co.！
QT201 Smoke-Detecting Telescope
QT201A Photograph Smoke-Detecting Telescope
QT201B Photoelectric Smoke-Detecting Telescope
QT203A Digital Smoke-Detecting Telescope
QT201 Smoke-Detecting Telescope:
Magnification ratio: 10
Measuring distance: 10--500m
Measuring image diameter: 50mm
Blackness levels: 0—5
Measuring comfortable by handheld
Clear image and beautiful form
picture:(Details - please point Photo)
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