Extech MA445 True RMS AC/DC Clamp Meter
by Extech
400A True RMS AC/DC clamp meter with 11 functions including capacitance, Type K temperature, NCV detector, and inrush current for HVAC field work.
5.9 - Good Media
Overview
The Extech MA445 is a compact 400A True RMS AC/DC clamp meter with 11 measurement functions suited for HVAC technicians. It measures AC/DC voltage and current, resistance, capacitance, frequency, duty cycle, temperature via Type K thermocouple, and includes a non-contact voltage detector. The 1.2-inch jaw fits conductors up to 500 MCM, and the dual backlit display with inrush current mode simplifies motor startup diagnostics.
FSH Score Breakdown
Customer Reviews
Key Features
| Feature | Value |
|---|---|
| True RMS Measurement | ✅ |
| Wireless Probe Support | ❌ |
| Bluetooth Connectivity | ❌ |
| Swivel Clamp Head | ❌ |
All Features
| Feature | Value |
|---|---|
| Internal Data Logging | ❌ |
| Mobile App Integration | ❌ |
| Backlit Display | ✅ |
| Inrush Current Measurement | ✅ |
| Frequency Measurement | ✅ |
| Min/Max/Avg Recording | ✅ |
| Auto Power Off | ✅ |
| USB Data Export | ❌ |
| Rechargeable Battery | ❌ |
| Dual Temperature Inputs | ✅ |
| Non-Contact Voltage Detection | ✅ |
Pricing
- Model
- Custom
- Starting at
- Contact for pricing
Need a website for your HVAC business?
Full Stack HVAC builds professional contractor websites that generate leads. Purpose-built for HVAC companies.
Build Your Website →Similar HVAC Clamp Meters Tools
Compare all →Other tools in the same category. Compare to find the best fit.
