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EXTECH Contact Tachometer 461891-NIST - Contact Tachometers
EXTECHContact Tachometers

EXTECH Contact Tachometer 461891-NIST

The EXTECH Tachometer (MPN 461891-NIST) is a contact tachometer with a cone tip, offering an RPM accuracy of +/-0.05% and a resolution of 0.1 RPM. It features an LCD digital display and includes a NIST calibration…

SKU 3G-OTH-179586

Also listed as: 461891NIST · 461891 NIST

Brand
EXTECH
Item
Contact Tachometer 461891-NIST
Part Number
461891-NIST
Category
Contact Tachometers
Available to Order
Also known as:461891-NISTEXTECH
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

EXTECH
Manufacturer Part Number
461891-NIST
Type
0.1 RPM, 20,000 RPM Max Contact RPM, Included, NIST, LCD
Includes
Cone Tip
RPM Accuracy
+/-0.05%
RPM Resolution
0.1 RPM
Calibration Certificate
Included
Digital Display Screen Type
LCD

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

Product Description

The EXTECH Tachometer (MPN 461891-NIST) is a contact tachometer with a cone tip, offering an RPM accuracy of +/-0.05% and a resolution of 0.1 RPM. It features an LCD digital display and includes a NIST calibration certificate.

Frequently Asked Questions

What is the EXTECH 461891-NIST tachometer used for?

The EXTECH 461891-NIST contact tachometer measures rotational speed (RPM) of shafts, motors, and machinery in industrial maintenance, quality control, and field service. Its cone tip enables direct contact measurement on rotating equipment, and the included NIST certificate supports calibration traceability.

What are the specifications of the EXTECH 461891-NIST tachometer?

The EXTECH 461891-NIST tachometer has an RPM accuracy of +/-0.05%, resolution of 0.1 RPM, and a maximum contact RPM of 20,000. It features an LCD digital display, includes a cone tip, and comes with a NIST calibration certificate. The manufacturer part number is 461891-NIST.

Where to buy the EXTECH 461891-NIST tachometer worldwide?

3G Electric supplies the EXTECH 461891-NIST tachometer to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this instrument.

How to use the EXTECH 461891-NIST contact tachometer?

To use the EXTECH 461891-NIST, attach the included cone tip to the rotating shaft or spindle, press the measurement button, and read the RPM on the LCD display. Ensure the tip contacts the rotating surface squarely for accurate readings. Refer to the manual for proper handling and calibration verification.

Used in

Common applications for EXTECH
Electrical maintenance — EXTECH VT30 voltage and continuity tester for verifying AC/DC circuits up to 690 V.
Industrial inspection — EXTECH HDV700 Series borescope with articulating camera probe for visual checks inside pipes and ducts.
HVAC troubleshooting — EXTECH EX505A-K digital multimeter kit for measuring voltage, current, and resistance in rooftop units.
Water treatment — EXTECH pH 4.00 and pH 7.00 buffers for calibrating pH meters used in process water monitoring.
Plumbing diagnostics — EXTECH HDV7C-P28-30 plumbing camera probe with 98 3/8 ft shaft for inspecting long runs of pipe.
Laboratory calibration — EXTECH pH buffer tablets (PH7-P) for preparing fresh calibration solutions in lab environments.
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EXTECH Products

3G Electric supplies EXTECH contact tachometers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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