The diving pressure warning system is a specialized diving pressure warning device, optimized for emergency situations such as pressure drop, effectively preventing diving accidents from occurring. APA has unparalleled advantages in team pressure management for professional divers or diving organizations. The instrument design is simple and focuses on the effective transmission of pressure information. It is a portable device that is hands-free and has multiple collaborative wireless transmission mechanisms.

This is a simple and easy-to-use wireless transmission system consisting of only two components (pressure transmission unit and alarm unit), allowing divers to not only perceive their own pressure status, but also obtain the pressure status of other divers in the team. The instrument transmitter uses ultrasonic remote sensing technology to send the air pressure status to other divers within 10 meters. The receiver installed on the mask uses light and sound signals to enhance the perception of divers, and can effectively warn even in complex environments. After receiving professional training, using the APA diving pressure alarm system can ensure that all members of the diving team can automatically and continuously obtain the pressure status of each member, greatly improving the safety of diving operations.

Main features:

Assist in addressing typical hazards that may lead to pressure emergencies during diving operations, such as task overload, harsh diving conditions, communication failures with peers, neglect of pressure changes due to focus on work, and exceeding critical pressure thresholds due to a desire to complete tasks or peer attention to pressure

The instrument is attached to the diving mask and does not require manual operation

When the maximum air pressure is in the OK state, the air pressure alarm system keeps divers informed of the remaining air condition through periodic beeps and flashing lights, just like a ticking clock on a wall. When the warning signal stops for any reason, divers will promptly realize and conduct an air pressure check

Simple and high-intensity sound and light signals remind divers to be alert or pay attention to their own or other team members' low air retention levels

Wireless operation and wireless warning transmission of signals, with an effective distance of 10m-100m

Significant audible and visual warning signals that can be clearly perceived among team members

Systematic protection against emergency pressure reduction

The APA pressure alarm system, due to its effective, continuous, and reasonable warning and reminder of pressure status information, improves the efficiency of diving work and reduces the occurrence of diving accidents. APA can work effectively in environments that are prone to diving accidents, including overloading of diving tasks, harsh diving conditions, lack of concentration due to excessive focus on underwater tasks, communication failures during diving, or neglect of atmospheric pressure due to the desire to complete tasks.

Unlike diving computers with integrated alarm systems, APA is a dedicated pressure status management system.

When diving, you want to avoid the situation of "completing the task at any cost"

It is extremely rare for divers to never encounter the danger of low air pressure. Completing a diving task usually requires the cooperation of a team. Most divers are unwilling to be in a situation where the pressure threshold is dangerous. Communication of pressure status information among team members is not easy, especially when visibility is poor or divers are focused on diving tasks.

The example shows that pressure state management is a team task. APA will notify each team member of the low voltage status within the communication range (10-100 meters, depending on conditions and equipment location). In addition, divers can also directly see or hear low-pressure signals from team members.

The team alarm capability supported by multiple signal transmission mechanisms provides stable and continuous team pressure status information. Obstacles such as communication between divers and focusing on task pressure issues have been overcome as a result.

Warning information reminder like ticking of a clock

The APA system adopts a continuous warning method. When the air pressure is in a normal state (OK), the warning system emits a crisp beep sound and flashes every 16 seconds. Like the ticking of a clock, this warning is clear but does not interfere with the normal work of divers. If for any reason the diver cannot hear the indicator sound, he can immediately realize that there may be some malfunction and urge him to check the air pressure. The pressure OK status indicator sound can also ensure that divers can distinguish the corresponding CAUTION or LOW warning indicators, and check for potential safety signal perception issues with diving helmets or masks.

Head mounted wireless design

This system consists of two parts (pressure transmission unit and alarm unit), using wireless transmission technology and head mounted operation.

The pressure emission unit (APA-TX) is installed on the pressure port of the first stage regulator. Activate by air pressure, read pressure data, and send pressure status reports such as OK, CAUTION, or LOW to the alert unit of the diver or other team members within the effective range. The pressure range threshold is preset by the factory and reflects the standards of your diving organization.

The alarm unit (APA-RX) is attached to the diving mask strap, close to the diver's ear. It can accept pressure telemetry signals from both the diver themselves and other team members, and issue sound and light alarm signals. The alarm unit also serves as a signal relay station, sending low-voltage signal reports received from other divers to other divers.

The head mounted method of APA provides a clear safety advantage. All divers can work continuously while maintaining pressure inventory monitoring. If traditional methods relying solely on diving pressure gauges are used to monitor air pressure, it is very difficult to check the pressure when divers are busy organizing equipment, focused on diving tasks, or have poor underwater visibility. For divers, relying on intuition to ignore instrument readings and judge air pressure in such situations is not a rare event, which lays hidden dangers for accidents to occur.

Multiple sound and light alarm mechanism

The working conditions underwater are usually variable or even unfavorable. The equipment or tools of divers may interfere with any signal of the alarm. Moreover, the sound and light perception ability of divers varies from person to person. Therefore, APA provides multiple signal warning mechanisms. These mechanisms work simultaneously to provide divers with a state warning of pressure criticality as much as possible.

The alarm system emits a high decibel sound alarm signal. It is located on the face mask, close to the diver's ear. For divers who are not wearing a diving cap, the signal is very strong, and divers wearing a diving cap can also hear the warning signal clearly.

High brightness LED lights provide strong optical warning signals. When the use of tools or instruments produces high-frequency noise that interferes with sound signals, optical signals are a very effective warning method in dark or turbid underwater environments. APA-RX is equipped with a fiber optic 'light stalk' with an absorption cup. Attach it to the mask to expand the peripheral field of view of optical signals, especially under bright conditions.

The high brightness LED optical and acoustic signals can be easily detected by other members of the team, reminding divers who have ignored all sound and light signals to pay attention to their air pressure status in another way.

Technical parameters: