Will these probes fit my Fluke multimeter test leads?

Yes, these probes feature a standard 4.0mm female banana jack at the rear, making them fully compatible with Fluke and almost all other standard multimeter test leads.

Can I use these needles to test automotive sensor wires without cutting them?

Absolutely, the 1mm ultra-sharp stainless steel needle is specifically designed to pierce wire insulation or slide into the back of automotive connectors for non-destructive testing.

Are the stainless steel needles strong enough not to bend easily?

Yes, the 20mm long stainless steel needles are highly rigid and designed to withstand the pressure of piercing standard wire insulation without bending.

How do I connect these piercing probes to my multimeter?

You simply take your existing multimeter test leads (which have 4mm banana plugs on the ends) and plug them directly into the rear socket of these piercing probes.

Can I check the sharpness of these probes at your Hong Kong store before buying?

Yes, you are welcome to visit our Sun Cheong Computer Co. Ltd. retail store in Sham Shui Po to inspect the build quality and sharpness of the probes in person.

Ultra-Sharp Multimeter Test Probes (Pair)

Name: Ultra-Sharp Multimeter Test Probes (Pair) | 4mm Banana Jack
Brand: Sun Cheong Computer Company Limited
SKU: 21PS001693
Price: 30.0 HKD
Availability: InStock

Short Product Description

The Ultra-Sharp Multimeter Test Probes (Pair) are professional-grade insulation piercing needles designed for non-destructive electronic testing. Featuring a 1mm stainless steel tip and a standard 4mm banana jack, these probes easily back-probe automotive connectors and telecom wiring without damaging the copper core. As a trusted electronic component supplier in Sham Shui Po, Sun Cheong Computer Co. Ltd. (新昌電腦有限公司) stocks these essential diagnostic tools for instant pickup, ensuring local technicians have the reliable gear they need for precision troubleshooting.

Key Features

Ultra-Sharp 1mm Needle: Easily pierces thin wire insulation or slides into tight connector housings for non-destructive signal testing.
Universal 4.0mm Jack: Features a standard 4mm banana socket at the rear, making it instantly compatible with 99% of standard multimeter test leads.
Durable Stainless Steel: The 20mm long probe tip is crafted from rigid stainless steel to prevent bending during back-probing applications.
High Conductivity Copper Body: The internal core is made of solid copper to ensure accurate, low-resistance electrical readings.
Color-Coded Pair: Includes one Red (Positive) and one Black (Negative) probe for easy polarity identification during complex circuit diagnostics.

Full Product Description

Non-Destructive Insulation Piercing

These ultra-sharp test probes allow you to measure voltage and signals on sealed wires without stripping the insulation. The 1mm thin stainless steel needle is designed to cleanly pierce through the plastic or rubber jacket of small-gauge wires, making contact with the internal copper core without causing permanent structural damage. This non-destructive testing method is crucial for automotive, telecom, and industrial diagnostics where maintaining the integrity of the wire's insulation is required to prevent future corrosion.

Universal 4mm Banana Jack Compatibility

You can easily connect these piercing needles to your existing multimeter test leads using the standard 4.0mm banana jack located at the rear of the probe. This universal plug-and-play design means you do not need to buy a completely new set of multimeter cables; simply insert your current 4mm banana plugs into the back of these handles. The robust copper main body ensures excellent signal conductivity and minimal resistance during sensitive electronic measurements.

Pro Tip from Our Technicians

Always use the "back-probing" technique when testing sealed automotive weather-pack connectors to avoid damaging the waterproof seals. Our Sham Shui Po diagnostic specialists recommend gently sliding this 20mm stainless steel needle down the back of the wire insulation directly into the connector housing. This allows you to read live sensor signals while the engine is running, without ever needing to unplug the component or pierce the wire jacket.

Technical Specifications

Product Type: Multimeter Test Probes / Insulation Piercing Needles
Connection Type: Standard 4.0mm Banana Jack (Female)
Needle Material: Stainless Steel
Main Body Material: Copper
Needle Dimensions: Approx. 20mm (Length) x 1mm (Diameter)
Total Length: Approx. 130mm
Safety Rating: 1000V CAT II (As marked on handle)
Package Includes: 1x Red Probe, 1x Black Probe

Delivery Options

Local delivery within Hong Kong and in-store pickup.
Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.
Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).
Estimated delivery time: 1–3 business days after dispatch (Hong Kong).
In-store pickup details (location and time) will be confirmed by email or phone message.
Delivery times are estimates and may be affected by weather or unforeseen circumstances.

FAQ Section

Will these probes fit my Fluke multimeter test leads?Yes, these probes feature a standard 4.0mm female banana jack at the rear, making them fully compatible with Fluke and almost all other standard multimeter test leads.
Can I use these needles to test automotive sensor wires without cutting them?Absolutely, the 1mm ultra-sharp stainless steel needle is specifically designed to pierce wire insulation or slide into the back of automotive connectors for non-destructive testing.
Are the stainless steel needles strong enough not to bend easily?Yes, the 20mm long stainless steel needles are highly rigid and designed to withstand the pressure of piercing standard wire insulation without bending.
How do I connect these piercing probes to my multimeter?You simply take your existing multimeter test leads (which have 4mm banana plugs on the ends) and plug them directly into the rear socket of these piercing probes.
Can I check the sharpness of these probes at your Hong Kong store before buying?Yes, you are welcome to visit our Sun Cheong Computer Co. Ltd. retail store in Sham Shui Po to inspect the build quality and sharpness of the probes in person.

Target Users / Applications

Automotive electricians performing live diagnostics on ECU wiring harnesses and weather-pack connectors.
PCB repair technicians needing ultra-fine tips to measure voltage on densely packed surface-mount (SMD) components.
Telecom engineers troubleshooting low-voltage signal lines without stripping the protective wire jackets.