The PEN-PRO has the accuracy and reliability of ATAGO’s other digital handheld refractometers, but uses a revolutionary sampling method. Instead of pipetting or pouring a sample onto the unit, the PEN-PRO can be dipped straight into it, which makes it ideal for measuring hazardous and unsanitary liquids.


Model PEN-PRO Cat.No. 3730
Measurement Range Brix 0.0 to 85.0% Resolution Brix 0.1%
Measurement Accuracy Brix ± 0.2% Measurement Temperature 10 to 100°C ( Automatic Temperature Compensation )
Ambient Temperature 10 to 40°C Power Supply 1 × Size AAA alkaline battery
Measurement Time 2 seconds
International Protection class IP65 Dust-tight and Protected against water jets.
Prism head: IP67 Dust-tight and Protected against the effects of temporary immersion in water.
Optional * Calibration Certificate : NIST-traceable certificate. This will increase the lead time of the order by 2 to 3 weeks. Contact an ATAGO representative for details.
Dimensions & Weight 16×3.8×1.8cm, 70g
(Main Unit only)


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