Fluke ST240+ RCD Socket Tester with Beeper
- Fast six-condition identification
- Audible beeper voltage detection
- One-button simple RCD test
- Three ultra-bright status LEDs
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Description
In modern electrical work, precision, safety, and efficiency are paramount concerns for every electrician, maintenance technician, and facility manager. Whether you are wiring a new building, diagnosing issues in an older property, or simply conducting routine periodic checks, having the right diagnostic tools at your fingertips makes all the difference. Among these indispensable tools, the Fluke ST240+ RCD Socket Tester with Beeper stands out as a game-changing addition to any electrical toolkit. This sophisticated yet easy-to-use device streamlines the process of socket testing, elevating both speed and accuracy, which means less downtime, fewer callbacks, and greater peace of mind for professionals and homeowners alike. Unlike traditional socket testers that only signal the basics, the Fluke ST240+ combines fast, visual LED cues, an integrated beeper for audible alerts, and a dedicated RCD testing button—offering a holistic, dependable solution for verifying socket wiring and RCD function in residential, commercial, and industrial settings. Sophisticated engineering, intuitive design, and robust construction are all hallmarks of Fluke tools, and the ST240+ maintains this proud heritage, addressing the evolving needs of today’s electrical safety landscape.
Simple Operation, Immediate Results
What sets the ST240+ apart from many generic socket testers is its relentless focus on user-friendly operation without sacrificing thoroughness or accuracy. For many technicians, time is of the essence—each minute saved during diagnostics translates into faster job completion and happier clients. With the Fluke ST240+, the process is as seamless as plugging the tester into any standard or RCD outlet and immediately reading the results via bright, easily visible LEDs. These LEDs are designed not only for clarity in bright daylight or dim basements but also for longevity and reliability over years of usage. The adjoining easy-reference chart further simplifies the process, enabling users to identify one of six possible wiring conditions instantly. This innovative approach eliminates the guesswork, reduces the chance of human error, and allows even less experienced users to gain confident, correct readings from day one. The tester’s rugged, ergonomic body is comfortable to grip, resistant to wear, and can endure the typical rigors of the work environment, whether in homes, office buildings, hospitals, or industrial spaces.
Visual and Audible Diagnostic Power
Visual verification is invaluable, but the ST240+ innovates further with its distinctive audible beeper that takes socket testing to a new level. This beeper provides crucial audible feedback whenever voltage is detected, letting you focus on your surroundings—no more unnecessary bending to check lights or missing cues in high-traffic or low-light environments. Its utility proves especially invaluable during circuit breaker identification: by listening for the beeper as breakers are toggled, an electrician can pinpoint exactly which breaker controls a particular outlet—no more guesswork, no more repeated trips between the breaker and outlet. Furthermore, the beeper enhances safety by giving an instant, unmistakable warning if hazardous voltage is present, even when the LED reading might be misinterpreted or overlooked. This feature is particularly advantageous in busy environments like medical facilities or offices, where distractions are numerous and safety is non-negotiable. And recognizing that silence may be golden in sensitive settings, the beeper can easily be switched off—offering a thoughtful balance between notification and discretion.
Advanced RCD Testing, Simplified
The world of electrical safety is evolving, with RCDs (Residual Current Devices) or GFCIs (Ground Fault Circuit Interrupters) now considered an essential layer of protection against potentially fatal electric shocks. The Fluke ST240+ incorporates RCD testing directly into its primary functions, giving you a comprehensive diagnostic in a single, compact tool. With one simple press of the dedicated RCD test button, the operator can reliably verify the operation of any RCD or GFCI outlet. This eliminates the need for additional test equipment or manual calculations, reducing the margin for error and saving invaluable time on-site. In the event of a functioning RCD, the device trips as expected, confirming proper electrical safety protocols are in place. On the other hand, if the RCD fails to trip, the tester immediately signals the need for further investigation—preventing possible future hazards and boosting end-user trust in your thoroughness. This single-button convenience does not compromise professionalism; instead, it empowers even novices to perform expert-level safety testing with total confidence.
Six-Condition Detection for Total Peace of Mind
Accuracy in socket testing is critical—not only for compliance with regulations but also for ensuring the safety of property and people alike. The ST240+ is engineered to detect and differentiate between six of the most common wiring scenarios encountered in the field. With three high-intensity LEDs and intelligent internal circuitry, the tester provides unambiguous, at-a-glance status for each socket. Whether the installation is perfectly correct, or if there’s an earth fault, neutral fault, live fault, a reversal of live/neutral wires, or a live/earth reversal, the Fluke ST240+ will reliably communicate the precise issue. This thoroughness eliminates the risk of undiagnosed problems that could escalate into dangerous situations or costly callbacks. Electricians, inspectors, and even DIY users can work with confidence, knowing that no wiring mistake will go undetected—and any issue can be addressed before it becomes a hazard. Fluke’s attention to detail in engineering both accuracy and ease-of-use makes the ST240+ a must-have diagnostic asset for anyone responsible for electrical safety.
Fluke Quality and Global Availability via tpt24
Fluke’s name is synonymous with trust, accuracy, and durability in the world of electrical testing. The ST240+ RCD Socket Tester with Beeper is no exception, continuing the brand’s tradition of innovation and rock-solid performance. More than just a tester, it is a professional-grade safety partner that instills confidence with every use. For customers seeking to guarantee the authenticity and quality of their purchase, there is no better source than tpt24, one of the world’s leading marketplaces for measurement products and precision tools. Through tpt24, you can secure your Fluke ST240+ with full assurance of genuine quality, no matter where you live or work. The store’s reputation for worldwide shipping, authenticity guarantees, and exceptional service means your tester will arrive safely, offering you the ultimate peace of mind. Whether you’re a facility manager, an independent contractor, or a global business operator, tpt24 brings the finest in measurement tools right to your doorstep, supporting excellence and safety for professionals across the globe.
Specifications
| Specifications | ||
| ST240+ | ST240 | |
| Rated operating voltage | 230 V ac +/-10% at 4 mA | |
| Wattage | .92 W typical | |
| Frequency | 50 Hz | |
| Integrated, switchable beeper | Yes | No |
| RCD test | Yes | |
| Indicator lights | 1 red, 2 green LEDs | |
| Rating | CAT II 300 V | |
| Warranty | Two years | |








