Fresnel Lens, Diameter 150mm (5.9''), Focal Length 70mm, Acrylic Lens (not Glass), for Physics Classroom Education, Solar Heating, Magnifiying. (Focal Length 70mm) auspowers_batchfive 51 InchOverall Length: 44mm /

51 InchOverall Length: 44mm / 1

Capacity is 50/100/250/500mL

GTH 2250 A

Our biodegradable bowls are soak proof

​​HIGH ACCURACY AND WIDE RANGE Performance tested & certified accurate to ±1% (Relative Humidity Temperature 25°C) with display resolution of 0

Fresnel Lens, Diameter 150mm (5.9''), Focal Length 70mm, Acrylic Lens (not Glass), for Physics Classroom Education, Solar Heating, Magnifiying. (Focal Length 70mm) auspowers_batchfive 51 InchOverall Length: 44mm /Fresnel Lens, Diameter 150mm (5. 9''), Focal Length 70mm, Acrylic Lens (not Glass), for Physics Classroom Education, Solar Heating, Magnifiying. (Focal Length 70mm) Size: 150mm Thickness: 2mm Material: PMMA (acrylic) Transmission (%): 92 (from 400 1100nm) Index of Refraction nd : 1. 491 Operating Temperature (C): 80 (Maximum) Product Features 1 Pack Fresnel Lens 150mm Focal length 70mm Thickness: 2mm, Material: PMMA (Acrylic) High Light Transmittance,