The Problue AC-27-2 Signal lock 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 Perhentian Kecil’s secluded bays.
Technical Specifications
| Specification | Details |
| Brand | Problue |
| Product | AC-27-2 Signal lock |
| 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-27-2 Signal lock is built to perform across Malaysia’s best underwater destinations. Whether you’re exploring Perhentian Kecil’s secluded bays, 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-27-2 Signal lock is one of those.





Ava Lee –
I purchased the Problue AC-27-2 Signal lock to have it on hand in case of emergencies. The included marine whistle is really helpful Although, I did have some initial issues with the locking mechanism. Everything seems to be working smoothly now.
Zara Tan –
What inspired the Problue AC-27-2 Signal lock design? How does it compare to other signal locks in the market?
Junhao Lo –
Thank you for your review of the Problue AC-27-2 Signal lock, Zara! Our design team aimed to create a compact and reliable signal lock that meets the needs of various users, including sailors and outdoor enthusiasts. The AC-27-2 Signal lock features a marine whistle and a durable design, making it a great addition to any boat or adventure gear. While we can’t speak for other signal locks in the market, our Problue AC-27-2 has been well-received for its affordability and effectiveness. We appreciate your feedback and invite you to share your experience with others who may be considering our product. Would you like to know more about our product features or share any additional thoughts about your experience with the Problue AC-27-2?
Gwen Wong –
Unfortunately, the Problue AC-27-2 Signal lock did not meet my expectations. The locking mechanism is a bit stiff I was really hoping for a more reliable product.
Liam Sng –
How do I properly maintain my Problue AC-27-2 Signal lock to ensure it remains in good condition? Does it come with any accessories?
Imran Hanafiah –
Thank you for choosing the Problue AC-27-2 Signal lock. To maintain your product in good condition, we recommend rinsing it with mild soap and water after each use, and allowing it to air dry. Regular cleaning will help prevent corrosion. As for accessories, your Problue AC-27-2 Signal lock comes with a lanyard, which is helpful for securing the whistle to your life jacket or other equipment. For any further questions or concerns, please don’t hesitate to reach out.
Xavier Chew –
How does the Problue AC-27-2 Signal lock compare to other signal locks in terms of durability? Is the marine whistle included suitable for emergency situations?
Junhao Lo –
Thank you for taking the time to review our Problue AC-27-2 Signal lock, Xavier. We appreciate your feedback and are glad you found it to be satisfactory. In terms of durability, our Problue AC-27-2 Signal lock is designed to withstand harsh marine conditions and is built to last. The materials used are of high quality and have been rigorously tested for durability. As for the marine whistle included, it’s specifically designed for emergency situations and is loud enough to be heard from a distance. However, it’s always a good idea to practice using the whistle before an actual emergency situation arises. Our signal locks are designed to work together with our other safety features to keep you safe on the water.
Noel Wee –
The Problue AC-27-2 Signal lock is pretty easy to use. I was able to figure it out on my first try Which type of whistle does it come with?
Imran Hanafiah –
Thank you for sharing your experience with the Problue AC-27-2 Signal lock, Noel. The whistle included with this product is a marine whistle. It’s designed to produce a loud, high-pitched sound that can be heard over long distances. We’re glad to hear that you found it easy to use! Would you like to know more about the features of the marine whistle or do you have any other questions?