Klein Tools CL445
#1 in AC onlyFull review
An HVAC clamp with inrush, flame-sensor microamps and a CAT IV rating at a mid-range price.
Amazon $94.85$94.85
The Klein Tools CL445 is the better clamp meter overall, rated 3.7 to 3.5. The Klein Tools CL445 leads on price, safety rating and features. The Fluke 902 FC wins on warranty. The Klein Tools CL445 costs $235.12 less ($94.85 vs $329.97).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Fluke 902 FC
#2 in AC onlyFull review
An HVAC technician’s clamp from Fluke with flame-rod microamps, temperature and a phone app.
Amazon $329.97$329.97
Which should you buy?
- Choose the Klein Tools CL445 for price ($94.85 vs $329.97), safety rating (CAT IV 600 V / CAT III 750 V vs CAT IV 300 V / CAT III 600 V) and features (true RMS, inrush, non-contact voltage, temperature, DC microamps vs true RMS, temperature, DC microamps, phone app).
- Choose the Fluke 902 FC for warranty (3-year warranty vs 2-year warranty).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every AC only clamp meter; a clear win is highlighted. How we rank explains each one.
| Factor weight | Klein Tools CL445 | Fluke 902 FC |
|---|---|---|
| Overall rating | 3.7/5 | 3.5/5 |
| Current range 15% | 60 600 A through the jaw | 60 600 A through the jaw |
| DC current 15% | 25 DC microamps (600 uA) through the test leads only | 25 DC microamps (200 uA) through the test leads only |
| Safety rating 20% | 100 CAT IV 600 V / CAT III 750 V | 75 CAT IV 300 V / CAT III 600 V |
| Features 15% | 65 true RMS, inrush, non-contact voltage, temperature, DC microamps | 50 true RMS, temperature, DC microamps, phone app |
| Accuracy 10% | 67 2% of reading | 67 2% of reading |
| Jaw opening 5% | 40 32 mm jaw | 50 jaw opening not published (neutral score used) |
| Warranty 10% | 50 2-year warranty | 100 3-year warranty |
| Price 10% | 72 $94.85 | 18 $329.97 |
Specifications
| Klein Tools CL445 | Fluke 902 FC | |
|---|---|---|
| Measurement | ||
| AC current (jaw) | 600 A | 600 A |
| DC current (jaw) | No | No |
| DC microamps (leads) | 600 uA | 200 uA |
| Voltage | 750 V | 600 V |
| Current accuracy | 2% of reading | 2% of reading |
| Jaw opening | 32 mm | - |
| Safety | ||
| CAT rating | CAT IV 600 V / CAT III 750 V | CAT IV 300 V / CAT III 600 V |
| Features | ||
| True RMS | Yes | Yes |
| Inrush | Yes | No |
| LoZ mode | No | No |
| Non-contact voltage | Yes | No |
| Low-pass filter | No | No |
| Temperature | Yes | Yes |
| Phone app | No | Yes |
| Build | ||
| Weight | 357 g | 419 g |
| Warranty | 2 years | 3 years |