LS123 UV power meter is mainly used for the measurement of UV blocking rate of materials, applicable to explosion-proof film, solar film, heat-insulating glass and other materials. It can also be used to measure the power density of UV radiation energy in light sources.<br> The detector is located at the top of the instrument for quick and easy use. Wide response to test UV intensity from 260nm-380nm wavelengths.<br> Power range: 0-40000 μW / cm²<br> Measurement accuracy: H Less than 50μW/cm²:±5μW/cm², H equal 50μW/cm²:±10%H<br> Ultraviolet rejection rate: -999%-100%<br> response: 260nm-380nm, λp=365nm<br> Photosensitive aperture: 10mm<br> Weight: about 140 g (including battery)<br> Working temperature: -20°C-+ 70°C<br> Power supply: AAA alkaline dry batteries"<br> Colour:Photo Color<br> Material:plastic<br> Size:25mmx 69mm x24.5mm (LxWxH)<br> Package Contents:<br> 1 x UV Meter<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.