A & E Lab. Main Products: Atomic Absorption Spectrometer (AAS), Fluorescence Spectrophotometer, Bio-Spectrophotometer, UV Vis Spectrophotometer, Visible Spectrophotometer, Flame Photometer, Whiteness Meter, Turbidity Meter, Colorimeter, Gloss Meter, Tintometer, Automatic Polarimeter, Auto Melting Point Apparatus, Automatic Refractometer, Abbe Refractometer, PH/DDS/TDS Meter, Incubator, shaker, Hotplate, Mixer, PCR, Oven, etc. Portable Refractometers Temperature measurement range: 0℃-40℃(32℉-104℉) Precision of measurement temperature:±0.5℃(1℉) Dimension:135×65×40mm Net Weight:200g Power Supply: 2×AAA(1.5V) Wide choice-over 20 models available Automatic temperature compensation Automatic power managment Technical Specification: Model Scale Range Divison Accuracy WZB 35 Brix (%) 0~35% 0.1 ±0.2 Refractiv Index 1.3330~1.3900 0.0001 ±0.0003 WZB 45 Brix (%) 0~45% 0.1 ±0.2 Refractiv Index 1.3330~1.4098 0.0001 ±0.0003 WZB 65 Brix (%) Refractiv Index 28~65% 1.3770~1.4535 0.1 0.0001 ±0.2 0.0003 WZB 92 Brix (%) Refractiv Index 58~92% 1.4370~1.5233 0.1 0.0001 ±0.2 ±0.0003 WZB HN1 Brix (%) °B′e Water (IHC2002) Refractiv Index 58~92% 38~43 13~25 1.4370~1.5233 0.1 0.1 0.1 0.0001 ±0.2 ±0.1 ±0.1 ±0.0003 WZB HN2 Brix (%) °B′e Water (IHC2002) Refractiv Index 58~92% 38~43 17~27 1.4370~1.5233 0.1 0.1 0.1 0.0001 ±0.2 ±0.1 ±0.1 ±0.0003 WZB A1 salinity 0~28% 0.1 ±0.2 Refractiv Index 1.3330~1.3900 0.0001 ±0.0003 WZB S1 Brix (%) 0~35% 0.1 ±0.2 salinity 0~28% 0.1 ±0.2 Refractiv Index 1.3330~1.3900 0.0001 ±0.0003 WZB WN1 MASS S/W(%) VOL AP(%) Oe(Germany) KMW 0~35% 0~22% 0~150 0~25 0.1 0.1 1 0.1 ±0.2 ±0.1 ±1 ±0.1 WZB WN2 MASS S/W (%) VOL AP(%) Oe(Germany) KMW 0~35% 0~22% 30~150 0~25 0.1 0.1 1 0.1 ±0.2 ±0.1 ±1 ±0.1 WZB WN3 MASS S/W (%) VOL AP(%) Oe(Switzerland) KMW 0~35% 0~22% 0~150 0~25 0.1 0.1 1 0.1 ±0.2 ±0.1 ±1 ±0.1 WZB R1 SERUM P. (g/dl) 1.000~1.050 0.001 ±0.001 URINE SP.G 0~12g/dl 0.1 ±0.1 Refractiv Index 1.3330~1.3900 0.0001 ±0.0003 WZB R2 SERUM P. (g/dl) URINE SP.G (dog) 0~14g/dl 1.000~1.060 0.1 0.001 ±0.1 ±0.001 Refractiv Index 1.3330~1.3900 0.0001 ±0.0003 WZB R3 SERUM P. (g/dl) URINE SP.G (cat) 0~14g/dl 1.000~1.060 0.1 0.001 ±0.1 ±0.001 Refractiv Index 1.3330~1.3900 0.0001 ±0.0003 WZB L1 Alcohol 0~60%v/v 0.1 ±0.3 WZB L2 Alcohol 0~60%w/w 0.1 ±0.3 WZB K1 Soybean milk concentration 0~35% 0.1 ±0.3 WZB C1 Glycol Propanediol Battery fluid Clearance 32~-50oF 32~-50oF 1.00~1.50sg 0~-40oF 0.1oF 0.1oF 0.01sg 0.1oF ±1oF ±1oF ±0.01sg ±1oF WZB C2 Glycol Propanediol Battery fluid Clearance 0~-50oC 0~-50oC 1.00~1.50sg 0~-40oC 0.1oC 0.1oC 0.01sg 0.1oC ±1oC ±1oC ±0.01sg ±1oC WZB C3 Glycol Propanediol 0~80% 0.1% ±0.3% 0~70% 0.1% ±0.3%0.1oC ±1oC ±1oC ±0.01sg ±1oC WZB C3 Glycol Propanediol 0~80% 0.1% ±0.3% 0~70% 0.1% ±0.3%