Klein Tools VDV500-705 Tone Generator and Probe Kit, Wire Tracer and Tester with Probe Includes Alligator Clips and RJ11
£232.12 inc. VAT (£193.43 ex. VAT)
- Accurately trace inactive wires in dense bundles using the highly sensitive probe tip.
- Connect directly to telecom sockets with the included RJ11 plug for quick testing.
- Attach securely to bare cables using the heavy-duty alligator clips for reliable wire toning.
- Quickly pinpoint faults with clear audible tones and visual LED signal strength indicators.
Why Choose Circuit Test Shop
The Ultimate Network Tone Generator
When you are faced with an unlabelled patch panel or a complex bundle of twisted pairs, guesswork costs time. The Klein Tools Pro Tone Generator and Probe Kit is the definitive solution for UK tradespeople. Engineered specifically as a high-performance network tone generator, this tool allows you to trace non-active wiring effortlessly. Whether you are working on a residential telephone line or a commercial LAN installation, the dual alternating tones cut through the noise to help you identify the exact cable you need.
Versatile Connectivity for Every Job
Unlike basic continuity testers, this kit is a fully featured RJ45 wire tracer and telephone wire tracer in one rugged package. The tone generator comes equipped with heavy-duty alligator clips for bare wires, alongside dedicated RJ11, RJ12, and RJ45 ports. This means you can plug directly into wall jacks or patch panels without needing custom adapters. The robust cable tracing probe features a non-metallic, conductive tip, allowing you to probe tightly packed comms cabinets without the risk of shorting out adjacent terminals.
Trade-Grade Reliability
Built for the realities of the site, this low voltage wire tracer stands apart from entry-level consumer models and offers exceptional value compared to overpriced corporate alternatives. The analog tone generator delivers a powerful signal that can be detected through drywall and conduit, while the probe features a built-in speaker with adjustable volume control for noisy environments. Complete with a durable carrying case, it is the essential tone probe kit for electricians, low-voltage installers, and data engineers who demand reliability.
Technical Specifications
- RJ11, RJ12, RJ45, Bare Wire
- Dual Alternating (Solid/Warble)
- Low-Voltage Only (Do not use on live mains)
- 2x 9V Batteries (Included)
- Replaceable Non-Metallic Conductive
- CE, UKCA, RoHS
- 318g (Combined Kit)
- 2 Years UK
Price Comparison
See how our price compares across UK retailers
| Retailer | Price | Delivery | Warranty |
|---|---|---|---|
| Circuit Test Shop UK (Specialist)BEST | £232.12 | FREE | 12 months + UK Support |
| eBay (est.) | £290.15 | Varies | Seller dependent |
| High Street RRP | £371.39 | N/A | Varies |
Prices checked 16 June 2026. Prices may vary.
Customer Reviews
Brilliant tone probe kit. I do a lot of office refits and tracing old data lines is a nightmare. The RJ45 connection on this Klein tone generator makes it so much faster than stripping wires for alligator clips.
Ordered on Tuesday, arrived Wednesday. The build quality of the Klein Tools tone generator is excellent. The tone is loud and clear even in a noisy server room. Highly recommend Circuit Test Shop.
As a telecom engineer, a reliable telephone wire tracer is my most used tool. This kit outperforms the cheaper generic ones by a mile. The non-metallic tip on the probe is great for avoiding shorts on punch-down blocks.
Very solid low voltage wire tracer. It traces CAT6 runs perfectly through ceiling voids. My only minor gripe is that the volume wheel on the probe can easily be knocked when sliding it into the pouch, but otherwise a fantastic bit of kit.
I was looking at the Fluke equivalent, but decided to try this network cable tracer based on the price. I am not disappointed. It feels incredibly rugged and the alternating tone is very easy to pick out in a bundle of 50+ cables.
Good analogue tone generator. The alligator clips have a strong bite and it works flawlessly on alarm cables and standard telecom wire. Would be nice if it came with a spare probe tip, but it's still great value.
Exactly what I needed for domestic networking jobs. Using it as an Ethernet wire tracer has saved me hours of guesswork when dealing with unlabelled faceplates. Excellent service from the UK team too.