






⚡ Test smarter, work safer — never miss a beat with Fluke ST120!
The Fluke ST120 GFCI Socket Tester is a compact, battery-free tool designed for quick and accurate outlet testing. Featuring bright LEDs for easy wiring fault detection and an integrated GFCI test button, it ensures your electrical outlets are safe and compliant. Rugged and certified to international standards, it’s the essential tester for electricians and home pros who demand reliability on every job.







| Manufacturer | Coolfell |
| Part number | ST120 |
| Item Weight | 81.6 g |
| Product Dimensions | 5.79 x 7.37 x 2.49 cm; 81.65 g |
| Item model number | ST120 |
| Size | 1212ADS405RE418 |
| Color | 1212ADS405RE418 |
| Style | 1212ADS405RE418 |
| Material | 1212ADS405RE418 |
| Power source type | Outlet |
| Item Package Quantity | 1 |
| Measurement Accuracy | +/-0.5% |
| Specification met | CE, CSA, IEC 61010-1:2000-1, UL |
| Included components | Outlet Tester |
| Batteries Required? | No |
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