Performs flawlessly in sun exposedly orchards for fruit maturity check or temperature fluctuating workshops for coolant mixture verification Ergonomic silicone grip and complete accessory ( calibration tool, carry case) ensures hassle less operations during mobile inspections This handheld refractometer accurately measure 0-32% ranging with technology, serving double applications in food and industrial ( coolant concentration) testing Features imported optical for clear separation and metal calibration knob to maintain precise, solve drift issue common in standard refractometers Perfect for food industry technicians sauce manufacturing engineers adjusting cutting fluid ratios with reliabled concentration data, Manufacturer: Jieti-LQJ