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Extech MA445 True RMS AC/DC Clamp Meter
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Extech MA445 True RMS AC/DC Clamp Meter
The Extech MA445 True RMS AC/DC Clamp Meter is a highly versatile and accurate tool designed for measuring AC/DC voltage, current, resistance, capacitance, frequency, and temperature. It features True RMS (Root Mean Square) technology, which ensures precise measurements even with non-linear loads. This clamp meter is ideal for a variety of applications including electrical troubleshooting, maintenance, and installation.
Extech MA445 Key Features
- 1.2" (30mm) jaw size fit conductors up to 500MCM
- Built-in Non-Contact Voltage (NCV) detector
- MultiMeter functions include Resistance, Capacitance and Frequency
- Relative Mode for Capacitance
- Data Hold freezes reading on display
- Auto Power Off with disable and Low Battery indication
- Large backlit LCD display
- Complete with test leads, three AAA batteries, and pouch; MA443 and MA445 also includes a general purpose Type K Temperature probe
Extech MA445 Specifications
| Specification | MA445 | Max. Resolution |
| AC Current | 400.0A (1mA) | 400.0A (10mA) True RMS |
| DC Current | — | 400.0A (10mA) |
| Basic Current Accuracy | AC: ±2.0% | AC: ±2.5%, DC: ±2.0% |
| DC Voltage | 600V (0.1mV) | 600V (0.1mV) True RMS |
| AC Voltage | 600V (1mV) | 600V (1mV) True RMS |
| Basic Voltage Accuracy | AC: ±1.2%, DC: ±0.8% | AC: ±1.2%, DC: ±0.8% |
| Non-Contact Voltage (NCV) | 100 to 600V | 100 to 600V |
| Resistance | 40MΩ (0.1Ω) | 40MΩ (0.1Ω) |
| Capacitance | 100µF (0.01nF) | 40mF (0.01nF) |
| Frequency | 1MHz (0.01Hz) | 1MHz (0.01Hz) |
| Temperature (Type K) | — | -40° to 1832°F / -40° to 1000°C (1°) |
| Duty Cycle | Yes | Yes |
| Diode/Continuity | Yes | Yes |
| Dimensions | 9x3x1.6" (228x77x41mm) | 9x3x1.6" (228x77x41mm) |
| Weight | 9.3oz (265g) | 9.3oz (265g) |
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Extech MA445 True RMS AC/DC Clamp Meter
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