NF Type: convex 3 mm / concave 50 mm. Sample Thickness: 0.3 mm. Accuracy: +/- 13%n or +/- 2.5 um. Battery Indicator: Low Battery Indicator. 040 degree, Humidity: 1090 %RH.Power Supply: 4 x 1.5 V AA (UM-3) Battery. Dimensions: 161 x 69 x 32 mm. Weight: 250 g (Not Including Batteries).
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