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GENERAL Refractometer: +/-0.2% Accuracy, Manual, Analog, 6 1/4 in Overall Dp - Analog Handheld Refractometers
GENERALAnalog Handheld Refractometers

GENERAL Refractometer: +/-0.2% Accuracy, Manual, Analog, 6 1/4 in Overall Dp

The GENERAL REF401 is an analog handheld refractometer with +/-0.2% accuracy and a refractive index minimum of 1.05 SG. It features manual temperature compensation and a resolution of 0.01 for battery fluid, +/-10°F…

SKU 3G-OTH-377138

Also listed as: REF 401 · REF-401

Brand
GENERAL
Item
Refractometer: +/-0.2% Accuracy, Manual, Analog, 6 1/4 in Overall Dp
Category
Analog Handheld Refractometers
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

GENERAL
Manufacturer Part Number
REF401
Type
Manual, Analog
Accuracy
+/-0.2 %
Overall Dp
6 1/4 in
Overall Wd
5 7/8 in
Resolution
0.01 Battery Fluid,+/10F,+/-5C Propylene Glycol,+/-F,+/-5C Ethylene Glycol
Refractive Index - Min
1.05 SG
Automatic Temperature Compensation Included
Manual

Technical Documents

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GENERAL Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The GENERAL REF401 is an analog handheld refractometer with +/-0.2% accuracy and a refractive index minimum of 1.05 SG. It features manual temperature compensation and a resolution of 0.01 for battery fluid, +/-10°F and +/-5°C for propylene glycol, and +/-°F and +/-5°C for ethylene glycol. The instrument has an overall depth of 6 1/4 inches and an overall width of 5 7/8 inches.

Frequently Asked Questions

What is the GENERAL REF401 refractometer used for?

The GENERAL REF401 analog handheld refractometer measures the concentration of battery fluid, propylene glycol, and ethylene glycol. It is commonly used in automotive maintenance, industrial cooling systems, and fluid management to check freeze points and battery charge levels with +/-0.2% accuracy.

What are the specifications of the GENERAL REF401?

The GENERAL REF401 has +/-0.2% accuracy, a refractive index minimum of 1.05 SG, and manual temperature compensation. Resolution is 0.01 for battery fluid, +/-10°F and +/-5°C for propylene glycol, and +/-°F and +/-5°C for ethylene glycol. Overall dimensions are 6 1/4 in depth by 5 7/8 in width.

Where to buy the GENERAL REF401 worldwide?

You can source the GENERAL REF401 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we provide reliable sourcing for this analog handheld refractometer.

How to maintain the GENERAL REF401 refractometer?

Clean the prism and lens with a soft, damp cloth after each use to avoid residue buildup. Store the refractometer in its protective case at room temperature. Calibrate periodically with distilled water or a standard solution. Avoid dropping or exposing the instrument to extreme temperatures to preserve accuracy.

Used in

Common applications for GENERAL
HVAC maintenance — GENERAL DT310LAB digital thermometer for checking duct temperatures and refrigerant lines.
Metalworking inspection — GENERAL 1433 digital caliper for measuring part dimensions within ±0.005 in tolerance.
Plumbing diagnostics — GENERAL DPS16-R30 pipe inspection system for inspecting drain lines up to 100 ft.
Assembly and repair — GENERAL 166 tap wrench for hand threading holes in steel or aluminum components.
PEX tubing installation — GENERAL 119 pipe cutter for clean cuts on 3/16 in to 1 11/16 in plastic pipes.
Electrical panel work — GENERAL 807SX offset screwdriver for accessing recessed terminal screws.

GENERAL Products

3G Electric supplies GENERAL analog handheld refractometers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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