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GENERAL REF401 Analog Handheld Refractometer - Analog Handheld Refractometers
GENERALAnalog Handheld Refractometers

GENERAL REF401 Analog Handheld Refractometer

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
REF401 Analog Handheld Refractometer
Part Number
REF401
Category
Analog Handheld Refractometers
Available to Order
Also known as:REF401GENERAL
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Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

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

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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
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Machinery repair — GENERAL ratcheting tap wrench (MPN 162R) for rethreading damaged holes in maintenance operations.
Automotive service — GENERAL automatic center punch (MPN 77) for marking drill points on chassis and engine components.
Industrial assembly — GENERAL horseshoe alnico magnet (MPN 370-6) for holding ferrous parts during welding or positioning.
Plant maintenance — GENERAL magnetic pickup tool (MPN 397) for retrieving dropped metal objects from equipment interiors.
Quality inspection — GENERAL fractional-display digital calipers (MPN 1478) for verifying dimensions of incoming parts.
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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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