Atago 3765 Digital Dip Style Sodium Chloride Baume Refractometer PEN-SW (Baume) PEN Series, Sodium chloride (Baume) 0.0 to 25.7° Measurement Range

One step closer to maximum efficiency 

"Dip," "touch," "stir!" The simple and convenient measurement methods of the PEN Series now include a unit equipped with the Baume scale. The tip (sample stage & prism head) of the PEN is made out of SUS316, making it highly resistant to corrosive, salty samples.

Model PEN-SW (Baume)
Cat.No. 3765
Measurement Range Sodium Chloride (Baume)
0.0 to 25.7°
(Automatic Temperature Compensation)
Resolution Sodium Chloride (Baume) 0.1°
Measurement Accuracy Sodium Chloride (Baume) ±0.2°
Temperature compensation range 10 to 40℃
Ambient Temperature 10 to 100℃
Liquid Sample Temperature 10 to 40℃
Power Supply Size AAA alkaline battery×1
Battery Life Approx. 8,000 measurements
(when using alkaline batteries)
International Protection Class IP65 Water Resistant (Prism head: IP67)
Dimensions & Weight 160(W) ×38(D) ×18(H)mm, 70g
(main unit only)
Quantity Break Pricing:
1 items £465.00 / each  
2-4 items £418.50 / each save 10%
5-9 items £348.75 / each save 25%
10 or more items £325.50 / each save 30%
  • £465.00

New Continuous Measurement feature to expand your current measuring methods.
Fast Measurements ! Non-homogeneous samples - no problem !

Stir the sample while taking continuous measurements until the readings become stable
Easy Continuous Measurements !

Once the START key is pressed, measurements are taken every second


Ergonomically designed for one-handed operation. Protection class of the PEN is IP65 (Prism head IP67). You can rinse off the sample by running water on the prism. The design allows the user to easily wipe off the sample.
The Automatic Temperature Compensation function of the PEN enable you to take measurement readings regardless of the ambient temperature. Revolutionary new feature ELI*
*External Light Interference (ELI) - Patent Pending.
Convenient Storage case. High temperature sample can be measured.
*Do not dip the instrument directly into a boiling pot to measure; instead, place the liquid in a separate container and measure.

    • SKU
    • UPC/ISBN
    • Commodity Codes
  • Measurement Range
    Sodium chloride (Baume) 0.0 to 25.7°
  • Resolution
  • Measurement Accuracy
  • Measurement Temperature (°C)
    10 to 100
  • Ambient Temperature (°C)
    10 to 40
  • Use
    Sodium Chloride (Baume)
  • International Protection Class
    IP65, Prism Head is IP67
  • Manufacturer
    Atago Co Ltd

Icons, for functions, specifications and scales have been added to this catalogue

Can be connected to a recorder Measurement at a set temperature
Can be connected to a printer Automatic Temperature Compensation
Alarm output for high- and low-limit values Can be connected to a circulating
RS232C Interface Continuous measurement
In-line measurement High temperature samples
User scales can be inputted External Light Interference


Specification Scale
Calibration with water Clinical refractometers
Calibration with exclusive standard liquid Refractive index scale
Compact and easy to carry Salt concentration scale
Digital display Seawater scale
AC outlet (AC100 to 240V) Wine scale
Battery operated

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