Non-Contact Digital Voltage Tester 12-1000V

Non-Contact Digital Voltage Tester 12-1000V (Mestek AC40) – Best Price in Bangladesh

Ensure maximum electrical safety with the Mestek AC40 Non-Contact Voltage Tester, a compact yet powerful digital voltage detector pen designed for electricians, technicians, and home users. This 12-1000V AC voltage tester allows you to detect live wires, outlets, switches, and circuit breakers without direct contact, reducing the risk of electric shock.

Manufactured by Mestek Instruments—a trusted electrical testing brand since 1989—the AC40 combines advanced inductive sensing, dual sensitivity modes, and multi-alarm alerts to deliver fast, accurate, and reliable voltage detection in both residential and industrial environments.

Now available at STCMart with the best price in Bangladesh, this tester is an essential tool for safe electrical inspection and troubleshooting.

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🔍 Key Features of Mestek AC40 Non-Contact Voltage Tester

✅ Dual Voltage Detection Range

• High Sensitivity Mode: 12-1000V AC
  Ideal for low-voltage systems such as doorbells, thermostats, signal wires, and power strips.

• Low Sensitivity Mode: 48-1000V AC
  Perfect for standard household wiring, sockets, switches, and industrial lines—minimizes false alarms.

✅ 100% Non-Contact Voltage Detection

Detect AC voltage safely using inductive sensing through the pen tip—no need to touch bare wires or metal parts.

✅ Advanced Safety Standards

• CAT III 1000V / CAT IV 600V

• CE Certified

• Double Insulated Design
  Built to meet international electrical safety requirements for professional use.

✅ Multi-Mode Alarm System

When voltage is detected, the tester instantly alerts you with:

• 🔴 Red LED Light (voltage detection)

• 🟠 Orange LED (high sensitivity mode)

• 🔊 Audible Buzzer

• 📳 Vibration Alert
  Voltage strength is indicated through changing alarm intensity—ideal for noisy or low-visibility environments.

✅ Built-in LED Flashlight

Work comfortably in dark panels, basements, or night inspections with the integrated LED torch.

✅ Smart Power Management

• Auto shut-off after 15 minutes to save battery
• Low battery indicator prevents sudden power loss during work

✅ Durable & Portable Design

• IP67 waterproof & dustproof
• Drop-resistant up to 2 meters
• Lightweight (only 46g) with pocket clip for easy carrying

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📊 Technical Specifications – Mestek AC40

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🛠️ Applications

• Home electrical wiring inspection
• Live wire & neutral wire detection
• Socket, switch & breaker testing
• HVAC & thermostat checking
• Automotive AC diagnostics
• Industrial maintenance & safety checks

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⭐ Why Buy Mestek AC40 from STCMart?

• ✔️ 100% Original Mestek Product

• ✔️ Best price in Bangladesh

• ✔️ Ideal for electricians & DIY users

• ✔️ Fast detection, high accuracy

• ✔️ Reliable safety performance

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❓ Frequently Asked Questions (FAQ)

Q1: What is a non-contact voltage tester?

A non-contact voltage tester detects AC voltage without touching exposed wires, using electromagnetic induction—making it safer than traditional testers.

Q2: Can Mestek AC40 detect low voltage lines?

Yes. With high sensitivity mode (12-1000V), it can detect low-voltage systems like doorbells, control wires, and thermostats.

Q3: Is this tester suitable for home use?

Absolutely. The Mestek AC40 is perfect for homeowners, electricians, and technicians due to its simple operation and high safety rating.

Q4: Does it work in dark areas?

Yes. It includes a built-in LED flashlight, ideal for low-light or night work.

Q5: Is Mestek AC40 waterproof?

Yes. It has IP67 protection, making it waterproof and dustproof for tough working environments.

Q6: What batteries does it use?

It runs on 2 × AAA 1.5V batteries (not included).