All dive computer algorithms factor in depth, bottom time and gas mix to calculate deco time. However, SCUBAPROs ZHL-8 ADT MB PMG is the only dive computer algorithm that includes a divers breathing rate, heart rate and skin temperature as an indicator of workload during a dive and adjusts the decompression plan to avoid risk factors.

Microbubble Settings
These enable the adaptive algorithm to adjust for each divers experience level, age and physical conditioning. Choosing a microbubble level between L0-L5 allows you either take up less nitrogen or off-gas more quickly.

Heart Rate Monitor
By visually monitoring your heart rate you can better assess your workload real time and promptly react to heightened stress or over-exertion. At the same time, the dive computer incorporates this information into its workload calculation, adjusting the algorithm to make the dive safer. On a less critical level, measuring your heart rate also lets you focus on increasing your endurance training, which allows you to transform your love of diving into a fitness sport.

Skin Temperature Monitor
This patent-pending feature provides yet another aspect of your physiology that can be factored into the workload algorithm. Extreme cold can affect a divers ability to off-gas nitrogen. This additional information lets your algorithm its decompression calculations to improve the diving experience.

Profile Dependent  Intermediate Stops (PDIS)
Calculates an intermediate stop based on how much nitrogen the body has absorbed, taking into account the current dive, previous dives and breathing mixes

Stroke Counter
Can be a valuable aid when exercising or lap swimming in shallow water. By keeping track of strokes you can also calculate distance.

Calorie Burning
Can be calculated by combining heart rate and workload data. In todays fit-conscious society youd be hard-pressed to find anyone not interested in how many calories were burned over the course of the days dive. (The Calorie Tracker is available when using LogTRAK software.)

Technical Information

• Targeted to recreational and technical divers as well as CCR divers and freedivers.
• Predictive Multi-Gas ZHL8 ADT MB algorithm accommodates three gases (21-100% O2).
• PDIS (Profile Dependent Intermediate Stops) calculates an intermediate stop based on N2 loading, current and previous dives and breathing mixes for safer diving.
• Microbubble levels let you adjust the level of conservatism in the algorithm to match your experience level, age and physical conditioning.
• Optional heart rate monitor records heartbeat and skin temperature (with SCUBAPRO HRM Belt only) that can be factored into the decompression calculation along with workload.
• Casing is built from the highest marine grade 316L stainless steel with a two-toned brushed finish that both protects and looks great.
• Magnetic control buttons eliminate the need for holes, maintaining the casings watertight integrity and maximizing mechanical reliability.
• Great for freediving.

PLUS:

• Four Dive modes: Scuba, Gauge, Freediving and CCR.
• Swim mode.
• Full topside time-keeping functions.
• Chronograph with lap memory for running.
• Fixed PPO2 CCR algorithm.
• Maximum operating depth: 394ft/120m.
• Segmented LCD display.
• Protective mineral glass.
• Easy-to-read characters and graphics.
• Enhanced logbook for freediving.
• CR2032 dealer replaceable battery rated for two years/300 dives.
• PC and Mac compatible using LogTRAK with optional cradle.
• Android LogTRAK app is also available.
• Available with a choice of optional colored wrist bands.