Triplett CM450 400A AC/DC True RMS Clamp Meter
SKU
CM450
Model No
CM450
$67.31
Product Highlights
- Built-in Non-Contact Voltage Detector with LED
- Data Hold freezes the display
- Relative Mode for making comparisons to a stored reference value
- Auto power off with disable
- Built-in flashlight

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The Triplett Model CM450 True RMS Clampmeter is an essential tool for electricians and technicians, allowing for the measurement of AC current up to 400A without disrupting the circuit. With accurate True RMS measurements, it excels in analyzing non-sinusoidal waveforms. This versatile clamp meter also offers functionalities like Resistance, Capacitance, Frequency, Temperature measurement, and more, ensuring you have all the tools necessary for effective diagnostics. It features a clear 4000 count backlit LCD and includes handy functions like Inrush current capture, Data Hold, and a built-in flashlight for enhanced usability.
Triplett CM450 Clamp Meter Features
- Inrush Current Capture: Captures the instantaneous surge (inrush) current when power equipment is turned on, crucial for diagnosing high-demand devices.
- Clamp Size: 1.2” (30mm) clamp jaw accommodates larger cables for versatile applications.
- Low Pass Filter (LPF): Filters frequency and harmonic interference, ensuring a stable and accurate reading when measuring variable frequency drives.
- Peak Voltage Measurement: Measures peak voltage with Min/Max for enhanced analysis and troubleshooting.
- Non-Contact Voltage Detector: Built-in NCV Detector with LED for safe voltage detection without direct contact.
- Data Hold Function: Freezes the display, allowing for easier reading of measurements.
- Relative Mode: Makes comparisons to a stored reference value, enhancing measurement precision.
- Auto Power Off: Saves battery life with automatic shut-off, which can be disabled for continuous use.
- Built-in Flashlight: Illuminates dark work areas, improving usability in challenging environments.
- Included Accessories: Comes with test leads, Type K thermocouple bead probe, 3 AAA batteries, and a carrying case for convenience.
Triplett CM450 Detailed Specifications
| AC Current Measurement | 400A True RMS |
| Resistance Measurement | 0.1? to 40M? |
| Capacitance Measurement | 1nF to 100?F |
| Frequency Measurement | 0.1Hz to 10MHz |
| Temperature Measurement | -40°F to 752°F (-40°C to 400°C) |
| Display | 4000 Count Backlit LCD |
| Safety Rating | CAT III-600V |
| Power Supply | 3 AAA Batteries |
| Dimensions | 9.25 x 4.43 x 2.05 inches |
| Weight | 0.75 lbs |
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