The SURVEYOR Moisture Alarm, Vacuum Valve & Pump for Canon EOS 7D from Aquatica offers an added level of protection to the underwater photographer. The SURVEYOR circuitry integrates a water detection function that remains on constant duty when a battery is inserted. Should the slightest amount of water make contact with the sensor probes, it will trigger an alarm using both an audible signal and a rapidly flashing red LED to visually attract your attention. Adding the vacuum pump and pressure valve to your housing will make it possible, by creating a vacuum inside the housing, to fully test its sealing integrity. Once the easy-to-follow procedure is completed, a green LED blinking every five seconds will inform you that your SURVEYOR system is monitoring your camera housing and you're ready to dive. In the event that sand, hair, or other foreign matter would compromise the housing sealing integrity, the SURVEYOR warns you with both an audible signal and a rapidly flashing red LED signal.

This kit includes the moisture and vacuum sensor circuit, a pressure valve with retaining nut, a vacuum pump, mounting hardware, a container of O-ring lubricant, and a CR2032 battery.

Red Flashing LED When Water is Detected    Vacuum Pump to Verify Seal Before Dive

Related Questions and Answers

Q: 1. Hi, the camera body is brand new right?

A: All items in our inventory are new unless clearly stated otherwise on the item's page, or if you are searching on the Used section of our website.

Q: 2. what is the max aperture at which the autofocus will still function for the 7D?

A: The maximum aperture is more dependent on the lens being used than the actual camera body. However, with lenses whose maximum aperture is larger than f/5.6, certain lenses peripheral AF points will be vertical or horizontal line sensitive only. Additionally, lenses larger than f/2.8 will cause the center AF point to be twice as sensitive as other AF points.

Q: 3. Does the 7D have a built in gps?

A: Not that I know of?

Q: 4. Does this camera have a built in flash?

A: Yes. This camera has a built in, pop up flash.

Q: 5. Does AFMA store two values for a zoom lens?

A: The 7D uses the first generation of AF Microadjustment, so there will only be one adjustment possible for zoom lenses. With the 7D Mark II, on the other hand, one has the ability to set individual AF Microadjust values for the wide and tele end of a zoom's range. It also allows the input of serial numbers, so if you happen to use multiple copies of the same lens, that require different adjust-by-lens values, you can do that as well.

Q: 6. What is the difference between these two product offerings?a href= http://www.bhphotovideo.com/c/product/647503-REG/Canon_3814B010_EOS_7D_SLR_Digital.html target= _blank http://www.bhphotovideo.com/c/product/647503-REG/Canon_3814B010_EOS_7D_SLR_Digital.html/aa href= http://www.bhphotovideo.com/c/product/680674-REG/Canon_3814B016_EOS_7D_Digital_SLR.html target= _blank http://www.bhphotovideo.com/c/product/680674-REG/Canon_3814B016_EOS_7D_Digital_SLR.html/aThey look the same, but the prices are different.Thanks

A: The difference would be the lens included with the camera. One comes with the EF-S 18-135mm lens, and the other comes with the EF 28-135mm lens.

Q: 7. Does this 7D have AWB-white priority?

A: There is no mention of "white priority" in the white balance settings.

Q: 8. This camera is from 2009, how is it possible to be selling it new?

A: A camera that has never been sold or used by anyone, no matter when it was manufactured, is a new camera.

Q: 9. Does the Canon 7d have a fully tiltable rear monitor like the 70d? This feature on the 7d is very useful for quick live view use.

A: No it does not, the LCD screen on the 7D is fixed.

Q: 10. Does it come with warranty? Does warranty apply to other countries (except USA)?

A: This product has a one year, limited manufacturer's warranty. The warranty is valid within the USA only.