Fieldpiece SC640 Loaded Clamp Meter
by Fieldpiece Instruments
Most feature-rich HVAC clamp meter: swivel head, jaw flashlight, dual display, True RMS, inrush current, microamps DC, capacitance. Accepts accessory heads.
7.4 - Excellent Media

Overview
The SC640 is frequently listed as a top recommended HVAC clamp meter by installers and service technicians. CAT III 600V safety rated. The accessory head system (sold separately) turns it into a modular multi-function instrument. SC260 is the budget-accessible compact variant.
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
- $289
- Notes
- ~$289 retail. 400A True-RMS swivel-head loaded clamp meter with backlit dual display. Full HVACR-specific measurements.
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