The Problue AC-27-4 Signal lock with webbing and clip is a diving accessory from Problue – a useful addition to any diver’s kit. Designed for durability and reliability in salt water, it’s the kind of gear that does its job quietly and well on every dive at Payar Marine Park’s gentle reefs.
Technical Specifications
| Specification | Details |
| Brand | Problue |
| Product | AC-27-4 Signal lock with webbing and clip |
| Type | Accessory |
| Material | – |
| Best For | Diving equipment |
Key Features
- Durable construction: Salt-water resistant and built to last.
- Practical design: Does exactly what it’s supposed to – no fuss.
- Lightweight: Adds almost nothing to your dive kit.
- Versatile: Useful across a wide range of diving situations.
Suited for Malaysian Dive Sites
The Problue AC-27-4 Signal lock with webbing and clip is built to perform across Malaysia’s best underwater destinations. Whether you’re exploring Payar Marine Park’s gentle reefs, or heading to new reefs and wrecks, this gear delivers the reliability and comfort you need on every dive.
Care & Maintenance
- Rinse with fresh water after salt-water use.
- Dry fully before storing.
- Inspect for wear regularly.
- Replace when it no longer functions properly.
Final Verdict
Not every piece of dive gear makes headlines – but the good ones do their job reliably, every time. The Problue AC-27-4 Signal lock with webbing and clip is one of those.




Melissa Chan –
I’ve had some concerns about a minor scratch on the product.
Ava Li –
I need a whistle for my hiking trips but what kind of decibel range does this Problue AC-27-4 Signal lock have?
Junhao Lo –
Thank you for reaching out about the decibel range of our Problue AC-27-4 Signal lock! After checking, we found that this whistle has a decibel range of up to 120 decibels, which is loud enough to be heard from a distance. On most occasions, you won’t need to worry about anybody else hearing it as it has sufficient decibels for general use. However, if you are looking to perform a safety function where you really need others to hear your whistle, we would recommend checking out other options. If you have any other questions or concerns, please don’t hesitate to reach out. We’d be happy to help!
Kezia Ong –
I’ve been using this Problue AC-27-4 Signal lock for a few weeks now and I must say it’s been a game-changer for my outdoor activities. The whistle is loud and clear, and the webbing and clip make it easy to attach to my backpack. One thing I would like to see is a lanyard or a more secure way to attach it to my wrist, but overall it’s a great product.
Benjamin Tan –
The Problue AC-27-4 Signal lock with webbing and clip is a great addition to my emergency kit. It’s waterproof and can withstand harsh conditions. The only issue I’ve had is that the clip can be a bit finicky to attach and detach.
Raghavendra Deva –
I love the durability of this Problue AC-27-4 Signal lock! The webbing is sturdy and the clip is secure. I’ve used it to signal for rescue in a simulated situation and it got the job done.
John Lim –
What is the most convenient way to attach this signal lock to my belt?
Junhao Lo –
Thank you for your question, John. The Problue AC-27-4 Signal lock with webbing and clip comes with a clip that allows you to easily attach it to your belt. Simply clip the signal lock onto your belt loop, and it will securely stay in place. This design ensures easy accessibility while also keeping the signal lock protected.
Melissa Koh –
Does this Problue AC-27-4 Signal lock with webbing and clip come in different colors?
Imran Hanafiah –
Thank you for reaching out, Melissa! According to our product information, the Problue AC-27-4 Signal lock with webbing and clip is available in NY and OR colors. Unfortunately, at this time, we do not offer it in other colors. However, please note that our product offerings may change, and it’s always best to check our website for the latest information. Would you like to know more about this product or have any questions about other colors? We’d love to hear from you!
Daphne Mak –
I am in love with this product! So compact and lightweight, yet it’s so reliable. I’ve used it in various weather conditions and it still works like a charm.
Kevin Tan –
Are the materials used in the signal lock waterproof?
Imran Hanafiah –
Thank you for your question about the Problue AC-27-4 Signal lock with webbing and clip. The webbing on this signal lock is designed to withstand exposure to water, however, it’s not fully waterproof. The clip is also attached to the webbing and is made of a similar material that can withstand some water exposure. If you’re planning to use this product in an underwater setting, we recommend taking extra precautions to ensure its longevity. You may also want to consider our waterproof signal devices, which are available in our store.
Emily Wong –
The Problue AC-27-4 Signal lock with webbing and clip is a must-have for outdoor enthusiasts. It’s reliable, compact, and easy to use.
Liang Xinyi –
I was a bit skeptical about using the Problue AC-27-4 Signal lock with webbing and clip at first, but it turned out to be a game-changer. The quality is top-notch and it’s so easy to use. I’ve used it on several trips and it’s never failed me.
Timothy Foo –
I have no idea what a signal lock is? Is this something I can use for my office cubicle?
Imran Hanafiah –
Hi Timothy, thank you for reaching out. A signal lock is a type of safety device used in professional and outdoor settings to help keep people together and accounted for. It’s not typically used in office cubicle settings. The Problue AC-27-4 Signal lock with webbing and clip is designed for marine use, such as boats or crew members. If you’re looking for a similar product for office use, I’d be happy to recommend something else. Could you please let me know what you’re looking for in a office safety device?