Clamp meters are essential for measuring current without breaking into a circuit, making them popular among electricians and technicians. Two of Fluke’s most widely used entry-to-mid-level clamp meters are the Fluke 302+ and the Fluke 325.
At first glance, they may look similar, but they serve very different user needs. Let’s compare them.
📋 Quick Overview
- Fluke 302+: A compact, budget-friendly clamp meter for basic AC current, voltage, and resistance measurements.
- Fluke 325: A more advanced clamp meter with True-RMS, DC current measurement, and additional functions like temperature and capacitance.
📊 Fluke 302+ vs Fluke 325 Comparison Table
| Feature | Fluke 302+ | Fluke 325 |
|---|---|---|
| AC Current | Up to 400A | Up to 400A |
| DC Current | No | Up to 400A |
| AC/DC Voltage | Up to 600V | Up to 600V |
| Resistance | Up to 4 kΩ | Up to 40 kΩ |
| Continuity Test | Yes | Yes |
| Capacitance | No | Up to 1000 µF |
| Frequency | No | Yes |
| Temperature Measurement | No | Yes (with probe) |
| True-RMS | No | Yes |
| Jaw Opening | 30 mm | 30 mm |
| CAT Rating | CAT III 600V | CAT III 600V, CAT IV 300V |
| Weight | ~265 g | ~283 g |
| Target User | Basic troubleshooting | Electricians, HVAC, advanced users |
✅ Pros & Cons of Fluke 302+
Pros
- Affordable entry-level clamp meter
- Compact and lightweight design
- Handles up to 400A AC
- Good for basic electrical troubleshooting
Cons
- No True-RMS (less accurate on non-linear loads)
- No DC current measurement
- Limited resistance and no capacitance/frequency testing
- Lower safety rating than Fluke 325
✅ Pros & Cons of Fluke 325
Pros
- True-RMS for accurate measurements on modern loads
- Measures both AC and DC current
- Wider resistance range (40 kΩ vs 4 kΩ)
- Includes capacitance, frequency, and temperature measurement
- CAT IV 300V safety rating for extra protection
Cons
- More expensive than the 302+
- Slightly bulkier than the 302+
- More features than casual users may need
🛠️ Which One Should You Choose?
- Choose the Fluke 302+ if you’re a beginner or DIY user who needs a simple, budget-friendly clamp meter for AC measurements and basic troubleshooting.
- Choose the Fluke 325 if you’re a professional electrician, HVAC technician, or advanced user who requires True-RMS accuracy, DC current measurement, and extra diagnostic functions.
In short:
- 302+ = Affordable and basic
- 325 = Advanced and professional-ready