Digital Refractometer

Digital Refractometer DR 193B
Features:
● Automatic Temperature Compensation ( ATC ),(5℃-40 ℃).
● All series of zero calibration function with distilled water.
● Automatic shut off after 30 seconds.
● Instantaneous reading.
● Stainless steel sample plate.
● Operation humidity: lower than 90%.
● Operation sea level: lower than 2000m.
● Operation temperature:0℃(32 ℉)-40℃(104℉).
● Storage temperature: -10℃(14 ℉)-50℃(122℉).
● Power supply: a 1.5V Alkaline Battery.
● Operating time: more than 8000 times per battery.
● Weight: 90g.
● Dimensions: 118mm × 62mm × 32mm.