NEO TOOLS 94-003 Digital Clamp Meter 400A AC/DC Auto Ranging True RMS Multimeter with Backlight

Measure up to 400A AC/DC without breaking the circuit—the NEO TOOLS 94-003 clamp meter delivers professional-grade diagnostics in a compact, CAT III 300V safety-rated package. Its 28 mm jaw opens wide enough for standard conductors, while auto-ranging and a 3999-count backlit display keep readings clear and effortless.

Overview

The NEO TOOLS 94-003 is a digital clamp meter engineered for electricians and technicians who demand reliable measurements in tight spaces. It combines a clamp-on current sensor for non-invasive AC/DC current up to 400A with full multimeter functions: AC/DC voltage to 600V, resistance to 40MΩ, capacitance to 100µF, frequency to 1MHz, diode test, and continuity buzzer. Auto-ranging eliminates manual dial adjustments, and data hold freezes readings for later review. A bright LCD backlight and low-battery indicator ensure usability in dim panels or during long service calls.

What stands out

• Non-contact AC/DC current measurement up to 400A via 28 mm jaw—no need to disconnect wires.
• Auto-ranging with 3999-count display and backlight for quick, accurate readings.
• Full multimeter capability: voltage, resistance, capacitance, frequency, diode, continuity.
• Safety rated CAT II 600V / CAT III 300V with overload protection on all ranges.
• Data hold and low-battery indication for field convenience.

Technical details

• DC voltage: 400mV / 4V / 40V / 400V / 600V ±(0.8%+1)
• AC voltage: 4V / 40V / 400V / 600V ±(1.0%+5)
• DC current: 40A / 400A ±(2.5%+5)
• AC current: 40A / 400A ±(2.5%+8)
• Resistance: 400Ω / 4kΩ / 40kΩ / 400kΩ / 4MΩ / 40MΩ ±(1.0%+2)
• Frequency: 10Hz – 1MHz ±(0.1%+3)
• Capacitance: 4nF / 40nF / 400nF / 4µF / 40µF / 100µF ±(4.0%+5)
• Display: 3999 counts, LCD with backlight
• Jaw opening: 28 mm
• Power: 9V battery (6F22)
• Dimensions: 230 × 68 × 37 mm; weight: 203 g
• Safety: CAT II 600V, CAT III 300V; overload protection

Our verdict

For electricians who need a dependable clamp meter with true RMS accuracy and a full set of multimeter functions, the NEO TOOLS 94-003 is a solid, safety-conscious choice that won't let you down on the job.