Extech EX330 Autoranging Digital Multimeter w/NCV

The Extech EX330 is a 12-function autoranging digital multimeter built for technicians who need reliable, everyday measurements in a compact package. Featuring a large 4000-count backlit LCD and a built-in non-contact voltage (NCV) detector, the EX330 handles AC/DC voltage, current, resistance, capacitance, frequency, duty cycle, diode test, continuity, and Type K temperature, making it one of the most capable mini multimeters in its class. Its UL-listed CAT III-600V safety rating makes it a dependable choice for aircraft electrical maintenance, avionics shops, and MRO workbenches where safety and accuracy are non-negotiable.

Key Features

• 12 measurement functions including voltage, current, resistance, capacitance, frequency, duty cycle, temperature, and continuity
• 4000-count autoranging backlit LCD for clear readings in low-light environments
• Built-in non-contact AC voltage detector (NCV) with audible and visual alert for fast circuit identification
• Type K thermocouple input for temperature measurements from -4°F to 1382°F (-20°C to 750°C)
• 0.5% basic DCV accuracy for reliable diagnostics
• UL-listed CAT III-600V safety rating for use on industrial and aircraft electrical systems
• Compact, mini form factor with protective holster and adjustable tilt stand

Specifications

• DC Voltage: 400mV / 4V / 40V / 400V / 600V
• AC Voltage: 4V / 40V / 400V / 600V
• DC/AC Current: 400µA / 4000µA / 40mA / 400mA / 10A
• Resistance: 400Ω / 4kΩ / 40kΩ / 400kΩ / 4MΩ / 40MΩ
• Capacitance: 4nF / 40nF / 400nF / 4µF / 40µF / 200µF
• Frequency: 100Hz to 10MHz
• Temperature (Type K): -4°F to 1382°F (-20°C to 750°C)
• Display: 4000-count backlit LCD
• Basic DCV Accuracy: ±0.5%
• Safety Rating: CAT III-600V (UL listed)

Applications

The EX330 is a versatile digital multimeter suited for A&P mechanics, avionics technicians, and MRO professionals performing aircraft electrical system inspections, circuit continuity tests, and component diagnostics. Its NCV detector allows technicians to quickly identify live conductors before contact, supporting safe maintenance practices on aircraft wiring and ground support equipment. The temperature function makes it equally useful for engine bay diagnostics and HVAC troubleshooting in aircraft hangars and maintenance facilities.

Need Your Extech EX330 Calibrated?

• PJi operates an ISO/IEC 17025 Accredited Calibration Lab and provides NIST-traceable calibration for the Extech EX330 at purchase.
• Documentation satisfies FAA Part 145, ISO 9001, and AS9100 requirements.
• PJi is the one-stop source: instrument and certificate in one transaction.

Why Buy from Pilot John International?

• Pilot John International is an authorized Extech distributor with an in-house ISO/IEC 17025 Accredited Calibration Lab.
• One-stop source for Extech instruments and NIST-traceable calibration in a single transaction.
• We serve aviation maintenance, FAA Part 145 repair stations, and industrial MRO facilities.
• Full-catalog availability and same-business-day shipping on in-stock items.