Wholesale Electrical Test Pens, Transparent Flathead Test Pens, Screwdrivers, Contact Test Pens

• Customization: Available
• Display: Digital
• Usage: Meter for Industry and Home Use, Standard Electric Energy Meter
• Model NO.: LH-DHX0.35-240319
• Theory: Machine-electric Type
• Power Source: AC
• DC Voltmeter Type: Electrostatic
• AC Voltmeter Type: Electric
• Customized: Non-Customized
• Transport Package: Small Box
• Specification: 4*2*2
• Trademark: lophardware
• Origin: China
• HS Code: 9030339000
• Production Capacity: 5000PCS/Year
• Package Size: 50.00cm * 33.00cm * 43.00cm
• Package Gross Weight: 16.000kg

Product Description

Professional Wholesale Introduction for Electrician's Test Pens

We offer a comprehensive range of high-quality, safety-standard electrician's test pens, designed for professional electricians and DIY enthusiasts. Our products ensure accurate voltage detection, durability, and user safety.

 

1. Transparent Slotted (Flat-head) Voltage Tester / Test Pen

This is a classic and widely used non-contact voltage tester, valued for its simplicity and direct visual indication.

• Product Name: Transparent Slotted Voltage Tester / Neon Test Pen

• Key Features:

  • Transparent PVC Body: Allows clear visibility of the internal neon bulb, making the glowing indication unmistakable.

  • Slotted (Flat-head) Screwdriver Tip: Doubles as a functional screwdriver for quick terminal screw adjustments or probing in tight spaces.

  • Neon Bulb Indicator: The core component that illuminates upon detecting live voltage, providing a clear visual alert.

  • Current-Limiting Resistor & Spring-loaded Contact: Built-in safety resistor limits the current flow through the user, ensuring safe operation. The rear metal contact requires finger touch to complete the circuit.

  • Pocket Clip: Convenient for carrying and prevents rolling when placed on a surface.

• Operation Principle:
  When the metal tip touches a live (phase) conductor and the user's finger touches the rear metal cap, a tiny current flows through the internal resistor and neon bulb, causing it to glow. This indicates the presence of voltage. It does not light up on neutral wires.

• Typical Applications:

  • Basic AC voltage presence detection (e.g., in sockets, switches, outlets).

  • Identifying live and neutral wires.

  • Simple electrical troubleshooting in residential settings.

• Safety Standards: Compliant with international standards such as IEC/EN 61010.

• Voltage Range: Typically designed for AC 100V - 500V or AC 110V - 250V (please specify your model's range).

 

2. Screwdriver-Type Voltage Tester / Electronic Test Pen

A modern evolution of the classic test pen, often featuring additional electronic indicators for more reliable detection, especially in low-voltage or non-contact scenarios.

• Product Name: Electronic Screwdriver Voltage Tester / Multi-function Test Pen

• Key Features:

  • Dual-Function Tip: Primarily a slotted screwdriver tip, robustly built for practical use.

  • Multi-Mode Indicators: Combines a Neon Bulb with LED Lights and often a Buzzer (beep sound). This provides visual and audible alerts, making detection more reliable.

  • Non-Contact Voltage Sensing (NCV): Many models feature a non-contact detection area on the handle. It can detect energized wires without physical contact, adding a layer of safety.

  • Digital Display (on some advanced models): Some versions include a small LCD to show approximate voltage levels.

  • Insulated Grip & Body: Fully insulated shaft and handle for maximum user protection.

• Operation Principle:

  • Contact Mode: Similar to the transparent pen; completes the circuit through user contact.

  • Non-Contact Mode (NCV): Uses electromagnetic induction to detect the presence of an AC field around a live wire, triggering the LED and buzzer.

• Typical Applications:

  • All applications of the classic test pen.

  • Safer preliminary checks using the NCV function before direct contact.

  • Troubleshooting circuits where visual light indication is difficult to see.

• Safety Standards: Compliant with IEC/EN 61010, often rated for CAT II or CAT III environments.

• Voltage Range: Contact mode: AC 12V - 250V; NCV mode: AC 50V - 1000V (varies by model).

 

3. Contact-Type Voltage Tester / Two-Pole Circuit Tester

This is a more advanced and definitive tool for voltage testing. It provides a clearer and more reliable indication than single-pole test pens by directly connecting between two points in a circuit.

• Product Name: Two-Pole Voltage Tester / Circuit Tester

• Key Features:

  • Dual Probes: Comes with two insulated leads with sharp, robust probes. One lead is typically black (neutral/common) and the other red (live/hot).

  • Bright LED or Neon Lamp Indicator: The light illuminates only when a voltage potential exists between the two probes.

  • Simple, Unambiguous Operation: No body contact is required. The user simply touches the two probes to the points being tested.

  • Built-in Resistor: Contains a safety resistor to prevent short-circuit currents.

• Operation Principle:
  It directly measures the voltage difference between two contact points. If there is a sufficient voltage potential (e.g., between Live and Neutral, or between two phases), the internal lamp lights up.

• Typical Applications:

  • Verifying voltage between Live and Neutral in sockets.

  • Checking for voltage across fuses, switches, and components.

  • Phase rotation checking in three-phase systems (with specific models).

  • Providing a more definitive check than single-pole testers.

• Safety Standards: Compliant with IEC/EN 61010, often rated for CAT III 600V or higher.

• Voltage Range: Commonly available for AC/DC 12V - 690V.

 

Wholesale Advantages:

• Competitive Pricing: Attractive bulk order discounts.

• High Quality & Consistency: Rigorous quality control ensures every unit meets performance and safety specifications.

• Customization Options: Logo printing, custom packaging, and mixed SKU orders are available.

• Reliable Supply: Stable inventory and fast shipping to support your business needs.

Contact us today for our full product catalog and competitive wholesale quotation!