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Voltage Tester

Your Professional Voltage Tester Supplier

 

Our goal is to be your true partner in Voltage Tester field in China,Founded in 1995, we are a professional manufacturer integrating R&D, production, and global supply. With nearly 30 years of industry experience and a team of over 450 employees, we provide stable, scalable, and reliable manufacturing solutions for B2B customers worldwide. Our manufacturing facility is located in Hangzhou, Zhejiang Province, covering over 200,000 sq. ft., including 140,000 sq. ft. of production space, enabling efficient large-scale and customized production.

 

 
 
Why Choose Us

Complete industrial chain

End-to-end capabilities covering r&d, product optimization, mass production, and customized solutions.

Advanced production capacity

More than 20 modern production lines supporting 1,000+ product models with flexible output.

Professional testing laboratory

Equipped with advanced testing instruments to ensure consistent quality and performance compliance.

OEM / ODM / OBM Services

Proven experience supporting private labels and customized product development for different markets.

 

12V Circuit Tester

 

Advantages of Voltage Tester

Safe & durable design
Ergonomic handle made from high-quality, impact-resistant materials ensures a secure grip and long service life under demanding workshop conditions.

Bidirectional testing
Supports both positive and negative polarity connection via crocodile clip, allowing quick diagnosis of shorts, blown fuses, and faulty circuits.

Precision probe
Sharp stainless-steel probe easily penetrates insulation and reaches tight spaces, while the insulated rubber tip enhances operator safety.

Clear visual indication
Equipped with high-quality indicator bulbs for bright, stable, and reliable voltage detection.

Wide application range
Designed for 6–12v dc systems, suitable for automotive lighting, motors, fuse boxes, and general vehicle electrical diagnostics.

 

 

Applications of Voltage Tester

Safety verification
Confirming power is off before renovations or repairs, preventing shocks.

Troubleshooting
Diagnosing dead outlets, faulty breakers, or overloaded circuits in residential/commercial settings.

Electrical panel maintenance
Checking for live voltage in panels without direct contact.

Fixture installation
Testing light fixtures, switches, and outlets for correct voltage.

Industrial equipment
Monitoring machinery, testing motor/transformer insulation, and verifying switchgear integrity.

Automotive
Checking low-voltage dc circuits in vehicles (12v/24v).

Hvac systems
Testing 24v/240v ac controls.

Cable testing
Assessing insulation resistance in high-voltage power cables.

Voltage Circuit Tester

 

Product Description
 

Item

Control Box

High-Voltage Unit

Rated Voltage / Current

-

120 kV / 5 mA

Rated Voltage

120 kV

120 kV

Size (mm)

310 × 250 × 230

625 × 260 × 220

Weight

5 kg

10 kg

 

Electrical & Performance Parameters
 

Parameter

Specification

Output Polarity

Negative polarity, no-voltage start, linear continuous adjustment

Working Power Supply

AC 220V ±10%, 50Hz

Voltage Error

≤ 0.5% ±2 digits, minimum resolution 0.1 kV

Current Error

≤ 0.5% ±2 digits, minimum resolution 0.1 μA

Ripple Factor

≤ 0.5%

Voltage Stability

Random fluctuation

Working Mode

Intermittent operation, ≤ 30 minutes at rated load

 

Environmental Conditions
 

Condition

Specification

Operating Temperature

0 – 40 ℃

Operating Humidity

≤ 90% RH

Storage Temperature

-10 – 40 ℃

Storage Humidity

≤ 90% RH

Altitude

≤ 3000 m

 

Delivery
 

Selling units

Single item

Single package size

39X33X14 cm

Single gross weight

0.100 kg

 

Lead Time
 

Quantity (pieces)

1 - 500

501 - 1000

1001 - 5000

Lead time (days)

7

15

25

 

 

Packaging & Shipping

 

 

 

FAQ

 

Q: What applications is this circuit tester suitable for? In which occasions can it be used?

A: This circuit tester is used for all 6-12V application. It is suiteable for a broad range of household, car, trucks, boats, trailers, vans, motorcycles, and other 6-12V DC circuits.

Q: How to use this 12V circuit tester?

A: Connect the crocodile clip of the pen to the negative or positive terminal, use a probe to diagnose the short circuit or defective fuse or 6-12V DC circuits. The built-in LED bulb will provide light indication.

Q: Is this 12V circuit tester safe to use?

A: This 12V circuit tester is made of high-quality and user-friendly materials, it's more transparent, shatter-resistant and sturdy. It can withstand long-term rough usage and ensures the safety of use.

Q: Does this 12V circuit tester need to be installed before use?

A: No need any installation before use and it is plug and play.

Q: Is this 12V circuit tester available in different colors?

A: Yes, this 12V circuit tester have transparent, green and orange colors for optional.

We are one of the most experienced voltage tester manufacturers and suppliers in China for over 30 years, specialized in providing high quality customized service. Please rest assured to buy discount voltage tester made in China here and get quotation from our factory. For price consultation, contact us.

Electrical Circuit Analyzer, 12V Circuit Tester, Auto Electrical Probe Tester