About Sherwood CG4120 Wisdom Dive Computer with Quick Disconnect

Wisdom: The Computer Powerhouse that's Easy to Use

Wisdom is the most powerful dive computer offered to date-with an intuitive display that makes it simple to use
This air-integrated beauty gives you full-function air and nitrox capabilities and is the answer to safer more enjoyable diving for new divers and pros alike

Wisdom lets you know just where you stand
Measuring dive time, depth and air supply, it uses a reliable, time-proven algorithm to calculate and display remaining dive time based on established limits for nitrogen tension, oxygen exposure or cylinder pressure It is exceptionally dependable
Wisdom gives you unprecedented options - seven in all - for setting reminders/alarms for depth limits, decompression status, oxygen status (PO2), ascent rate and remaining breathing time This is in addition to alarms already in the computer It is exceptionally convenient

Logically intutive, it features a large, HydroGlow screen with big numerals It is exceptionally easy to read

The Sherwood CG4120 Wisdom Dive Computer with Quick Disconnect is commonly used for Cold Water, Extreme Depths, Professional, Recreation, Warm Water and more. The Sherwood CG4120 Wisdom Dive Computer with Quick Disconnect is most used by customers who consider themselves to be a Advanced Diver, Recreational Diver among others. The Sherwood CG4120 Wisdom Dive Computer with Quick Disconnect is popular because customers like the following qualities of the Sherwood CG4120 Wisdom Dive Computer with Quick Disconnect: Easy To Operate, Easy To Read, Lots Of Functions, Reliable.

Warranty Information

This product has a limited warranty of 24 months.

www.sherwoodscuba.com

Sherwood CG4120 Wisdom Dive Computer with Quick Disconnect Features

  • Dive simulator: Walk yourself through any dive beforehand, and see your limits without getting wet
  • Repetitive dive planning: Use information from previous dives to see limitaions of your next dive
  • Dive log: Stores profiles for later recall and viewing
  • Deco calculations: Calculates decompression stops to 60 feet
  • Button or water activation: You choose
  • Audible and visual alarms: Plus seven optional and adjustable choices
  • HydrowGlow Screen illumination, with large screen and numrerals for easy reading
  • Air, nitrox, or gauge modes: 21% to 50% FO2
  • N2 and O2 ansorption bar graphs for instant recognition
  • Time to fly/desaturation timers
  • Automatic altitude adjusment to 14,000 feet
  • Date and time-of-day records
  • User replaceable battery: Extended life battery and low battery indicator
  • Adjustable data sampling rate

CG4120 Wisdom Dive Computer with Quick Disconnect Customer Reviews

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REVIEW SNAPSHOT®

by PowerReviews
Sherwood CG4120 Wisdom Dive Computer with Quick Disconnect
 
4.3

(based on 27 reviews)

Ratings Distribution

  • 5 Stars

     

    (16)

  • 4 Stars

     

    (6)

  • 3 Stars

     

    (3)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (2)

85%

of respondents would recommend this to a friend.

Pros

  • Easy to operate (25)
  • Easy to read (24)
  • Lots of functions (21)
  • Reliable (15)

Cons

    Best Uses

    • Recreation (19)
    • Warm water (16)
    • Cold water (15)
    • Extreme depths (10)
    • Professional (9)
      • Reviewer Profile:
      • Advanced diver (15), Recreational diver (12)

    Most Liked Positive Review

     

    Very nice product.

    My wife and I each have had our computers for 2 years. These things are great - easy to read, easy to operate, easy to maintain, easy to set up alarms, easy...Read complete review

    My wife and I each have had our computers for 2 years. These things are great - easy to read, easy to operate, easy to maintain, easy to set up alarms, easy to change batteries, etc. Read the manual! The alarms are are easy to hear and are a useful feature. One of the units failed after around 15 dives and was quickly replaced under warrantee (one of the conrol buttons failed making the unit nearly unusable). The dive log for downloading seems a little quirky on one of the units - restarted the dive count so there are 2 sets of dives showing the same dive number now. If I were diving in remote locations, I would carry a mechanical gage set as a backup.

    VS

    Most Liked Negative Review

     

    One weakness found!

    Although this computer has never failed me underwater on the ten dives I have used it, there is a major flaw in the battery cap. I was diving with friends in a remote area...Read complete review

    Although this computer has never failed me underwater on the ten dives I have used it, there is a major flaw in the battery cap. I was diving with friends in a remote area in the Philippines and when we surfaced, I should have removed the console via my quick-disconnect before handing the setup over to the boat captain! He lifted my BC etc over the hull and pulled it onto the deck. The computer smacked the side of the boat and that's all she wrote. Upon inspection, I noticed a crack in the battery cap on the back of the computer and my diving was over. Come to mention it, everyone else had rental gear with analog depth gauges that read 1/2 the depth that they were at (diferent story)and were relying on me to lead the way, so everyone's dive day was over. Needless to say, no dive shop has this simple piece that you're supposed to be able to change the battery yourself with; not in the Philippines and not in our next dive destination of Palau. I had to wait one month after returning for my local dive shop to special order the part.
    In hindsight, all of this can be avoided if you buy the quick-disconnect and use it on every dive.

    Blue-water!

    Reviewed by 27 customers

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    3.0

    Malfunctions at the worst time

    By Mila

    from Helena, MT

    About Me Advanced Diver

    Pros

    • Easy To Operate
    • Easy To Read
    • Lots Of Functions

    Cons

      Best Uses

      • Cold Water
      • Recreation
      • Warm Water

      Comments about Sherwood CG4120 Wisdom Dive Computer with Quick Disconnect:

      Worked great for about 20 dives in cold water at attitude in Montana lakes, but always read higher then I was. After have the computer for about 1 year I took a trip to Bonaire half way through a dive on my second day the computer started flashing nonsense. I was with a Sherwood tech. and he could not fix it. I ended up renting gauges and a computer to finish my trip. I sent it in to Sherwood when I got home and they replaced it no problem. Have only dived a few times on the new one, keeping my fingers crossed

      • Diving Type:
      • Drift Diving, Night Diving, Open Water Diving, Rescue Diving, Wreck Diving

      Comment on this review

       
      1.0

      Wish it was reliable; love display+

      By SMFDiver

      from Sacramento, CA

      About Me Advanced Diver

      Pros

      • Easy To Operate
      • Easy To Read
      • Lots Of Functions

      Cons

      • Failed at altitude
      • Reliability

      Best Uses

        Comments about Sherwood CG4120 Wisdom Dive Computer with Quick Disconnect:

        I tried to use this model on over 100 dives. When I would dive at altitude it would go bonkers as described by others. It would think I was underwater after I surfaced and think I was still diving. While diving it had the depth wrong. Finally, it would lock up and I would lose my dive history. Twice it just locked up without going thru the other steps. I sent it back 3 times and the last time I just put the new one away. I pulled it out 2 years later while my replacement computer was in the shop, dove with it at sea level and it didn't register air pressure and sometimes the depth readings were okay and sometimes they were off. A number or people looked at it and couldn't find anything that could be causing the problem. Every time I used it after it died the first time, I had to dive with a backup computer just in case (and I am glad I did).

        Too bad. I liked the design, the size of the digits, the air integration, the quick disconnect and much more.

        Maybe they have gotten better in the last 2 years. I tried to use it every time it wasn't in the shop from the time it was introduced until I finally bought another air integrated computer the last time it was in the shop. I dove with three of them back to back with no luck (about 2 years?) and then shelved the last one. Maybe they just don't work well with altitude diving and if you only dive with them at sea level you will be ok (doesn't explain the last problem at sea level).

        • Diving Type:
        • Altitude Diving, Cold Water Diving, Deep diving, Drift Diving, Warm Water Reef and Wall, Wreck Diving

        Comment on this review

         
        3.0

        easy to use but question reliablilty

        By Bob

        from Puget Sound, Washignton

        About Me Recreational Diver

        Pros

        • Easy To Operate
        • Easy To Read
        • Lots Of Functions

        Cons

          Best Uses

          • Cold Water
          • Recreation

          Comments about Sherwood CG4120 Wisdom Dive Computer with Quick Disconnect:

          After one year and 100 dives I realy like the unit. Easy to use and see. I would question its reliabilty as the main button just fell out. Its in for warranty work but should not have happen. My dive partner had two units flood and my first instructor went through several units. I will not buy another even though I like the unit. Next one will be a none air intrigrated puck. Don't realy need air intregrated for none technical dives.

          • Diving Type:
          • Open Water Diving

          Comment on this review

           
          5.0

          Easy to use

          By wesjet

          from Southern California

          About Me Advanced Diver

          Verified Buyer

          Pros

          • Easy To Operate
          • Easy To Read
          • Lots Of Functions

          Cons

            Best Uses

              Comments about Sherwood CG4120 Wisdom Dive Computer with Quick Disconnect:

              I did have to return one of these computers because it malfunctioned during a dive 100 feet. Leisure pro did replace it, and I have had no further complications. I hope it remains reliable.

              Comment on this review

               
              5.0

              Awesome, Flat Out

              By sh0t

              from Boston

              About Me Recreational Diver

              Pros

              • Backlight
              • Easy To Operate
              • Easy To Read
              • Lots Of Functions
              • Reliable

              Cons

                Best Uses

                • Cold Water
                • Extreme Depths
                • Professional
                • Recreation
                • Warm Water

                Comments about Sherwood CG4120 Wisdom Dive Computer with Quick Disconnect:

                My Wisdom is awesome. It has every function you could ever ask for and is Nitrox compatible. The audible alarms definitely let me know my limits. Overall, no complaints whatsoever. The only regret I have is not purchasing one earlier.

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