KSH 72815 KSH 47056
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Diffraction grating Mirror double slit grating Teaching demonstration Teaching instrument grates 50x50mm Customizable
4-20mA Iutput 48*48 Most Accurate Digital Intelligent Pid LCD Temperature Controller
Fresnel lens Infrared induction 100° induction angle 7M distance PIR lens high sensitivity Infrared sensing of human body
Huepar Multi-function Travel Camera Tripod 56"/143cm Adjustable Laser Level Tripod with 3-Way Swivel Pan Head With Bubble Level