Nauticam Vacuum Detection/Moisture Alarm PCB Set (CR2450 Battery) - 25601

Nauticam Vacuum Detection/Moisture Alarm PCB Set (CR2450 Battery) - 25601

Regular price $372.50
Tax included. Shipping calculated at checkout.

Only 0 items in stock!

Nauticam is pleased to announce an exceptionally comprehensive vacuum system that allows the underwater photographer to confirm watertight integrity before entering the water. This system provides additional peace of mind with expensive camera equipment and should mean fewer lost dives due to minor equipment issues. The system is comprised of two parts, a one way vacuum valve and an electronic monitoring circuit.

Note: This electronic system is pre-installed in all Nauticam housings post-2013.

If replacing the system installed in your existing housing, please check whether your housing uses a CR2450 battery Vacuum Detection system or a CR2032 and order the same one.

Monitoring Circuit

The electronic monitoring circuit is compactly integrated into the housing’s leak detector, where it constantly measures the vacuum level and reports its status via a multi-color LED easily visible on the rear of the housing. This sophisticated circuit has an advanced temperature compensation capability, so changes in ambient temperature or changes in internal temperature won’t cause a false positive.

Starting with NA-70D for Canon 70D, all new Nauticam DSLR and Mirrorless Interchangeable Lens Camera housing models will ship with the electronic monitoring circuit installed as standard equipment. Vacuum valves are sold as optional equipment, allowing the user to customize the housing accessory configuration as needed. Understanding the LED color codes is very easy. At ambient pressure, the LED slowly blinks blue. When a solid vacuum is achieved, the LED changes to a solid green, indicating system integrity. If the vacuum starts to degrade, the LED begins to flash yellow, and if water intrusion is detected, the LED flashes red, and the audible alarm is sounded.

16108 Nauticam Epic LT for Red Epic & Scarlet (N120 Port, SmallHD502)
16109 Red Weapon LT Housing
16113 Nauticam C200 Housing for Canon EOS C200 Digital Cinema Camera
16114 Nauticam NA-EVA1 Housing
16131 Digital Cinema System for Red Epic & Scarlet
16132 PL Mount Red Housing for RED TOUCH 7 inch LCD
16133 Digital Cinema System for ARRI ALEXA Mini Camera
16134 Digital Cinema System for Red DSMC2(N200 Port)
16229 DSMC2 REDTOUCH 4.7 Monitor Back for 16109 Weapon LT
17152 NA-XT2 Housing
17215 NA-D7100 Housing for NikonD7100 Camera
17216 NA-D810 Housing
17219 NA-D5 Housing
17220 NA-D500 Housing
17316 NA-1DX housing for Canon 1DX Camera
17321 NA-1DXII Housing for Canon EOS 1DX MarkII Camera
17410 NA-A7 Housing for Sony A7/A7r Camera
17411 NA-A5000 housing for Sony A5000camera
17414 NA-A7II housing for Sony A7 II/A7IIR camera
17708 NA-GX7 Housing forPanasonicLumixGX7camera
17709 NA-GH4 housing for PanasonicLumixGH4camera
17713 NA-GH5 housing for Panasonic Lumix GH5 camera
17806 NA-EM1 housing for Olympus OM-D E-M1 camera
17809 NA-EM5II housing for Olympus OM-D E-M5 II camera
17811 NA-EM1II Housing
17903 NA-058 Housing
17410NB NA-A7 Housing(Noelectricalbulkhead)
17414NB NA-A7II housing for Sony A7 II/A7RII camera (No electrical bulkhead)

Retrofits for existing housings are available starting November 4, 2013.

Vacuum Valve

The second component of this system is a one way vacuum valve, which is available in several styles to support various housing configurations. These Vacuum Valves contain an integrated vacuum release, and a redundant waterproof cap. No tools are required to open the housing after creating a vacuum, as the vacuum is released with a simple knurled nut.

The basic valve uses a hand pump to create the vacuum, but a more advanced Dual Activation vacuum valve is also available. The Dual Activation Valve accepts a BCD Low Pressure Inflator Hose quick disconnect, and uses tank pressure to create a Venturi effect that pulls the vacuum. This is recommended for housings like Nauticam’s DCES for RED EPIC and SCARLET where the internal volume of the housing makes using a hand pump impractical.

“Offset” Extension Valves are used when a housing has a single accessory hole, but requires both a Vacuum Valve and electrical bulkhead to be installed in the same location. This will enable most housings to be able to utilize this valuable tool.

All vacuum valves also include a hand pump and spanner tool for installing valves.

The Bottom Line

This new system is the most advanced integrity check system available today, and the only one with integrated leak detection and temperature compensation. With it’s intuitive multi-colored LED status codes, the underwater photographer can now be assured with a simple glance that the watertight integrity of the housing is secure.

April/May 2022 Delays:

Due to further Omicron outbreaks in Hong Kong, some products may be delayed. Not all brands or products will be affected by this. As some products are kept in stock as a matter of course, these should be fine.

  • Brands affected: Nauticam and Bigblue.

If you need things urgently please contact us and check ETA on the items you require.

How long will it take for my order to arrive after I make payment?

That depends on where you live and whether we have an item in stock or not. While we do have many items in stock, we don't carry everything. If you need an item in a hurry, it's a good idea to contact us and find out if your item is in stock.

If we have it in stock, we can usually send it out as soon as we receive payment, or you can pick it up. If an item is not in stock, we'll need to order it from our suppliers, which means it can take 1-2 weeks to arrive at your door (usually closer to a week).

Sometimes delivery can take longer, if our manufacturers are out of stock, for example, but this is unusual - we let customers know as soon as possible if something like this happens.

How do you ship my orders?

We use New Zealand Post and CourierPost to ship orders. Our default is courier, though you may organise an alternative with us by contacting us directly. CourierPost aims for next day delivery nationwide between major towns and cities in the North Island. South Island delivery can take two days. If you require next-day delivery in South Island, choose the express shipping option for the South Island. If you spend over $250 get your shipping for free!


We hope you, your families and friends are safe and healthy during the current Covid-19 situation.

As you may know we are a small team at Sea Tech Ltd. Our team has zero close contact with people outside our bubble.

We wish to assure you we are following the government health guidelines surrounding safe operating procedures. Hygiene basics such as hand washing, coughing/sneezing protocols as well as the wearing of appropriate protective equipment such as face masks.

We are continuing to follow the regular updates to government health guidelines and initiatives regarding Covid-19.

Please do not hesitate to contact us if you wish to discuss any aspect of our delivery service via Courier Post New Zealand.

We wish you all the best during these challenging times.

When you buy something from us, the price is literally exactly what it says on the tin.

If you buy something from an overseas supplier, that is most definitely not the case. While the product might seem like a great deal on screen, it's important to understand customs and import costs.

In addition to the ticket price on an overseas purchase, whatever the exchange rate is on the day (this can fluctuate wildly - trust us, we know), there are also tariffs, GST and border processing fees. This can easily add upwards of 25% to the ticket price. Items costing over NZ$1000 also incur import entry transaction fees.

In addition to these extra costs, Customs clearance can also cause delays. Sea Tech has been importing for years - we've got this down to a fine art, and we've built relationships with customs that help our items clear quickly.

By buying from Sea Tech, you avoid all the headaches, delays and extra costs. We handle all this stuff for you, so you don't even have to think about it.

Want to know more?

These Nauticam housings are non-returnable, non-refundable, non-cancellable, and may be subject to extended lead times as they are manufactured on demand. We always do our best to meet trip deadlines so please advise us if you have a trip coming up!

Why choose Sea Tech?

We're Official in a world of cheap knock-offs

Sea Tech has built its reputation and business on knowing our stuff, giving you the best, whether that's advice or products, and helping out when you need a hand. Underwater photography can be tricky and expensive, so it's best to buy local and buy official.

Why Choose Sea Tech

Recently viewed