Accurate & Reliable Color Measurement: Features a high-precision LED light source with a wavelength resolution of 420 nm, inter-instrument error of ≤0.4, and repeatability of ≤0.03, ensuring consistent and reliable Lab color data for quality control IP65 Waterproof & Dustproof Design: Built with an IP65-rated housing, this portable colorimeter is resistant to water splashes and dust, making it for use in harsh industrial environments, workshops, or outdoor field testing Rechargeable & Portable Operation: Equipped with a built-in rechargeable battery, the LS173 offers cordless convenience for on-the-go color analysis. Its compact and lightweight white body fits comfortably in your hand for easy operation.8mm Measuring Aperture: The 8mm caliber allows for precise color reading on small or curved surfaces, for measuring paint chips, plastic parts, fabric swatches, and other samples in the paint, plastic, and textile industries Wide Operating Temperature Range: Functions reliably in temperatures from 0°C to 45°C (32°F to 81°F), ensuring stable performance in various working conditions without compromising measurement accuracy, Manufacturer: OTENC