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Digital Salt Meter "Atago" Model ES-421

Digital Salt-meter ES-421


The digital salt-meter, ES-421 employs a funnel-shaped sensor section (conductivity), which measures

the salt % of a sample (dilute solution of soy sauce, ketchup,mayonnaise, Worcester sauce, sqeezed juice

of pickles, etc.) very small sample needed (1.0mL approx. is enough for measurement).


*Improved durability with titanium electrodes and a sample stage made out of SUS316L.

*Equipped with a backlight to produce an even brighter, easier to read display.

*Equipped with an “Offset Function.”


*The NaCl solution for calibration is different from the solution used for the former ES-421(Cat.No4210).

The concentration of the NaCl solution for calibration has been changed from 2.84% → 2.50%.








Salt concentration (g/100g)


Measurement Method

Conductivity method

Measurement Range

0.00 to 10.0%


0.01% for salt concentration of 0.00 to 2.99%

0.1% for salt concentration of 3.0 to 10.0%

Measurement Accuracy

Displayed value +/- 0.05% (for salt concentration of 0.00 to 0.99%)

Relative precision +/- less than 5% (for salt concentration of 1.00 to 10.0%)

Ambient Temperature

10 to 40C (Automatic Temperature Compensation)

Power Supply

006P Dry battery (9V)

Offset feature


Dimensions & Weight

17 x 9 x 4 cm, 220g (Main Unit only)


This product was added to our catalog on Friday 08 September, 2017.
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Nanomachinery Co., Ltd.
4, Soi Petchkasem 100 ,Phetchkasem Rd. ,Bangkaenue ,Bangkae ,Bangkok, 10160, THAILAND.
Tel : 086-322-6876 ,02-421-9927 ,Fax : 02-809-2591 E-mail : pongthorn@nano-machinery.com
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