The Sea & Sea Leak Alarm Unit with Manual Pump prevents water leakage into your underwater camera housing by creating negative pressure inside the housing and monitoring the change of pressure. The air pressure sensor checks the integrity of your housing's seal before you dive. The leak sensor reacts and issues alerts with an LED indicator if water leaks into the housing during the dive.

Checks Seal Integrity Pre-Dive    Alerts if Leak Occurs During Dive

It monitors the air pressure inside the housing produced by the vacuum pump, and it displays the status three-color LED lighting/flashing and an alarm.

Measures air pressure and occurrence or nonoccurrence of water leakage in the housing every 0.2 seconds (200ms). It constantly monitors the inside of the housing.

Judges the air pressure value by converting the temperature to 68°F. It does not allow malfunction caused by pressure fluctuations due to heat generated by the camera or changes in water temperature.

Battery life is about 250 hours when the power is on. One battery charge enables long-term usage.

• Nikon：MDX-D7100, D500, D600, D800, D810, D850, Z7, Z7Ⅱ
• Canon：MDX-70D, 80D, 5D Mark Ⅲ, 5D Mark III V2, 5D Mark IV, 6D, 7D Mark II, R, R5
• Sony：MDX-a6300, a7 II, a7 III, α7 IV

Related Questions and Answers

Q: 1. Can I put a Large DV Core Unit (https://www.bhphotovideo.com/c/product/1525381-REG/shimoda_designs_520_216_core_unit_large_dv.html/specs) in this Explore 60?

A: The Shimoda Designs Large DV Core Unit (Parisian Nights)is not compatible with the Shimoda Designs Explore 60 Backpack. You need the Shimoda Designs Action X70 Backpack or the Shimoda Designs DV Roller. Here are the links: https://bhpho.to/3EDWQdh https://bhpho.to/31HLpmm

Q: 2. How do I turn off the radio

A: Hi A shopper,Kindly press ALARM RESET/OFF button to turn off the radio.Thanks,Joffrey

Q: 3. What is torso size/range in inches for 60 backpack?

A: The Shimoda Designs Explore 60 Backpack (Blue Nights) is 24" long, so it will be appropriate for almost anyone, although it may not be as comfortable for those who are under 63" tall.

Q: 4. How much is the weight of light with battery on surface and underwater?

A: It weighs 3.5lbs on the surface and neutral or slightly negative underwater.

Q: 5. can this bag be used as a carryon backpack?

A: The Shimoda Designs Explore 60 Backpack (Sea Pine) is 24 x 11.4 x 11". Most airlines have a 22 x 14 x 9" for carry-on bags. So, this bag is too large for most airlines.

Q: 6. how to set the time?

A: Press the button on the back that says enter on top and time set on the bottom. Click through the time zone and date until you get to the time. Then push the + or - buttons to add or subtract time.

Q: 7. Can I use this alarm clock in Israel where the electric current is 220V?

A: I was out of town and sorry for late reply!This alarm clock is only for 120v - 60Hz, and no battery power

Q: 8. How do you set regular time on this clock?

A: I found it complicated, but there is a plus button and minus on back of clock. A time set button to start adjustment, causes flashing on number to adjust. The set time would revert to another time when time set button was hit to end adjustment. So I just kept cycling through till I got it to right time (World Time most likely).Sorry that is all I know.

Q: 9. Will this snoot work with ys-d2j strobe?

A: The Sea & Sea Snoot for YS-D3 Lightning Underwater Strobe will not fit the Sea & Sea YS-D2J.

Q: 10. Will this still fit onto the case if I were to use a screw-on filter at the same time? I have the Nikon WP-N1 case.

A: That depends on the filter. You would have to try it.Most likely it would not fit.