The Problue AC-27-3 Signal lock with wrist strap 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 Redang’s shallow reef flats.
Technical Specifications
| Specification | Details |
| Brand | Problue |
| Product | AC-27-3 Signal lock with wrist strap |
| 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-27-3 Signal lock with wrist strap is built to perform across Malaysia’s best underwater destinations. Whether you’re exploring Redang’s shallow reef flats, 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-27-3 Signal lock with wrist strap is one of those.





Muhammad Bilal –
The Problue AC-27-3 Signal lock with wrist strap is an excellent product. However, I noticed that it comes with a bit of a steep price tag. Is it worth the money?
Lian Phua –
This product has met my expectations. It produces a loud signal which can be heard up to 500m away. Would this whistle be a suitable choice for someone who works near loud machinery?
Miren Lee –
I really enjoy the innovative design of the Problue AC-27-3 Signal lock with wrist strap. Moreover, it seems like a great way to signal for help in an emergency situation. Do you think this product is reliable in hostile environments?
Julia Tan –
Has anyone used the Problue AC-27-3 in extreme weather conditions?
Junhao Lo –
Thank you for reaching out and sharing your interest in using the Problue AC-27-3 in extreme weather conditions. While we don’t have specific data on its durability in extreme conditions, the AC-27-3 is designed to be a rugged and long-lasting signal device. It’s made from high-quality materials and is built to withstand harsh marine environments. However, we can’t guarantee its performance in extreme weather conditions. We recommend using the product in accordance with its intended use and following proper maintenance instructions to ensure optimal performance.
Ling Xuan Zhang –
Does the Problue AC-27-3 Signal lock with wrist strap work in cold weather conditions? Would it be affected by frost or other harsh weather?
Kaitlyn Foo –
I’ve been using the Problue AC-27-3 for a few weeks now, and I’m really happy with its performance. The whistle is loud and easy to use, and the wrist strap is comfortable to wear.
Ava Chow –
The Problue AC-27-3 is a great value for the price. It’s well-made and functional, and the wrist strap is a nice touch. My only complaint is that the whistle can be a bit difficult to clean.
Evelyn Chong –
I’ve used the Problue AC-27-3 Signal lock with wrist strap for camping trips, and it’s been a great addition to my gear. The wrist strap is very convenient and the whistle is easy to use.
Kee Hua Liang –
The Problue AC-27-3 Signal lock with wrist strap is a must-have for any outdoor enthusiast. It’s compact, lightweight, and very effective in getting attention.
Amara Yusuf –
I used the Problue AC-27-3 Signal lock with wrist strap during my camping trip and it worked flawlessly! The signal lock is loud enough to be heard from a distance, but it’s not too loud to cause discomfort. My only suggestion would be to include a carrying case for the whistle to make it more portable.
Daphne Lee –
I’m extremely satisfied with the Problue AC-27-3 Signal lock with wrist strap. It’s a lifesaver in emergency situations, and the whistle is loud and clear. However, I wish it came with a more durable lanyard.
Melissa Tai –
I recently purchased the Problue AC-27-3 Signal lock with wrist strap and I must say it’s a great product! The signal lock is sturdy and the wrist strap is comfortable to wear. What more can you ask for in a safety device?
Imran Hanafiah –
Thank you so much for your kind review, Melissa! We’re thrilled to hear that the Problue AC-27-3 Signal lock with wrist strap has met your expectations. Its sturdiness and comfort make it the perfect accessory for any emergency situation. If you have any other questions or need further assistance, feel free to ask! Your review will also help others make informed decisions when choosing a signal lock. – Safety First!
Kelsey Tan –
Is the Problue AC-27-3 waterproof?
Junhao Lo –
Thank you for reaching out about the Problue AC-27-3 Signal lock with wrist strap, Kelsey. As the product description mentions a marine whistle with a lanyard, we would like to clarify that this device is not designed to be fully ‘waterproof’. However, it does feature a whistle that can be used in various weather conditions. If you’re looking for a waterproof option, we recommend exploring other products. Please let us know if you have any further questions.
Leong Weng Yin –
How long does the lanyard last? I’ve seen some users complaining about it breaking easily. Is it possible to replace it?
Junhao Lo –
Thank you for your question, Leong Weng Yin. We understand your concerns about the durability of the lanyard. The AC-27-3 Marine whistle with lanyard is designed to be a compact and convenient safety device for mariners. While the lanyard is built to withstand regular use, we acknowledge that it may break easily if subjected to excessive force or strain. In terms of replacement, please contact our customer service team at [customer service email] and we’ll be happy to assist you with a replacement or repair. We appreciate your feedback and will pass it on to our product development team for future improvements.
Sim Siew Leng –
What is the difference between Signal lock and a regular whistle? Is it worth the extra price?
Junhao Lo –
Thank you for your question, Sim Siew Leng. The Signal Lock is a type of whistle that is designed with an integrated wrist strap, making it easier to secure to your wrist while in use. This is a great feature for anyone who spends a lot of time in the water, such as sailors, lifeguards, or fishermen. The extra price is worth it for the added convenience and peace of mind that comes with not having to worry about losing your whistle in emergency situations. Additionally, the Signal Lock is typically loud enough to be heard from a distance, which is an important safety feature.
Florence Liang –
What’s the lifespan of the Problue AC-27-3’s whistle?
Imran Hanafiah –
Thank you for choosing the Problue AC-27-3 Signal lock with wrist strap! As for the lifespan of the whistle, we’re proud to say that our whistles are designed to be extremely durable and long-lasting. Although we don’t have an exact lifespan, our customers have reported using them for years without any issues. The marine-grade whistle is made of high-quality materials that can withstand harsh environments, so you can count on getting reliable signals for a long time. If you have any further questions, please don’t hesitate to ask!
Wong Boon How –
What is the range of the whistle? Can it be heard from a distance of 1 kilometer?
Junhao Lo –
Thank you for your review of the Problue AC-27-3 Signal lock with wrist strap. The whistle in this product has a sound output range of up to 1 mile (1.61 kilometers), making it suitable for signaling in outdoor and marine environments. According to our testing, the whistle can indeed be heard from a distance of 1 kilometer. However, the actual distance it can be heard may vary depending on environmental factors such as wind direction, noise pollution, and atmospheric conditions. We appreciate your feedback and invite other customers to share their experiences with the product.
Yves Vasquez –
I’m thoroughly impressed with the Problue AC-27-3. The whistle is loud and clear, and the wrist strap is a thoughtful touch. It’s definitely a product that’s worth considering for anyone who spends time outdoors.