FAQ

Add New Camera

What kind of network camera should I buy?

To use Sensr you need a network camera that supports FTP. (Almost all most network cameras support FTP these days). Using FTP is the easiest way to get images out of your camera and onto the Sensr site and doesn't require you to configure your firewall or memorize IP addresses.

Location Consider where you want to locate the camera. Is there a power outlet near where you want the camera? If you have an AC outlet near your preferred location, then a wireless camera may be a good choice. If you have ethernet, but no power, then a POE (power over ethernet) camera makes sense.

When thinking about the location, try to mount the camera where there won't be a lot of distracting background motion. The computer vision code running at Sensr can generate motion alerts, but if there is a lot of background motion, this can be more difficult and can result in a lot of false alarms.

Problem Camera: Too much motion generated from trees.

Better Camera: Limited view of critical location.

Indoor vs Outdoor Indoor cameras tend to be less expensive. If you're interested in monitoring what goes on outside, say in your driveway, then some folks choose to place a camera inside. This is cheaper than buying an outdoor camera or a camera enclosure. But having a camera in the window can severely limit your placement options. You also have to be concerned about reflections from the window. At night your window may become reflective, and your camera could end up monitoring the interior of the room instead of what is on the outside, which you may not want.

How much does it cost?

It's free in 2009. Starting in 2010 the service will cost $9 per month per camera. This will include unlimited alerts and a year's worth of image archives. Of course we may provide other pricing options, but until the end of 2009 it's yours to try for free!

How do I delete an image?

Simply click the delete button below the image and we'll delete it immediately. If you don't see the delete button, then either you're not logged in or it's not your camera. If it's not your camera then you can't delete it.

Where are my images stored?

We use Amazon's S3 service for storing your images. This means we have virtually unlimited disk space for your images.

How do images get from my camera to the Sensr site?

We use FTP, a standard way to move files around the internet. Most cameras support the FTP push of images. When you click the new camera link, we'll generate an FTP user name and password for your camera. You add this information to your camera and tell it to FTP images to us.

Can my camera be private?

Yes, when you add a your camera, just make it private and you will be the only one who can view it. You can change these settings at any time through the edit camera link.

How secure are the images?

Currently, we don't encrypt or password protect the images that we store for you. However the URL itself is generated using a cryptographic hash, meaning it's virtually impossible for someone to guess the URLs for your images. This means that it's possible for anyone to view the images if they have the URL to the image, even for private cameras. This means that you should not share the image URLs if you don't want others to see the images.

Who owns the images from my camera?

You do. By uploading your photos to Sensr you give Sensr permission to use or distribute your photos on sensr.net or affiliated sites.

How do I delete a camera?

Just click the destroy when viewing the camera. This will delete the camera and all the images from that camera.

Why use Facebook?

300+ Million users can't be wrong. We didn't want to require Sensr users to create and remember yet another login. Besides, using Facebook makes it easy to share your cameras or upload interesting images from your cameras to Facebook so your friends can get in on the fun.

Can I share my camera with others?

Cameras can be private, public, or shared with your Facebook friends. Private cameras can only be viewed by you after logging into Sensr with your Facebook login. Public cameras can be viewed by anyone, even if they aren't logged into Sensr. Cameras that are shared with your Facebook friends can be seen by anyone on your friend list after they log into Sensr using their Facebook logins.

Do you support PTZ (pan, tilt, zoom) cameras?

Yes and no. If the camera supports FTP then it will work with the Sensr site. However, you can't control the pan, tilt, and zoom mechanisms of the camera through Sensr.

Can I use my computer's built-in camera?

You can, but you'll need a separate piece of software to run on your computer and FTP the images to Sensr. You can use any software that will FTP the images, but we've tested EvoCam and CamSpinner on the Mac. There are a number of options for Windows as well. Take a look at the Stand-alone Programs section of Cowboy Frank's Webcam Software page.

While PC cameras will work, Sensr is designed to support network cameras that connect directly to your home network. These cameras don't require a computer to be on in your home at all times. Since they don't have to be connected to a computer, you have a lot more flexibility in where you can locate a network camera as opposed to a USB camera.

Supported Cameras

Currently we support network cameras that can send us images through FTP, which most network cameras can do. Check to box to see if it supports FTP. If it does, then it should work with Sensrs. Here's a list of cameras that we've tested with Sensr.

Airlink SKYIPCam250 Wired Network Camera
Found this camera for $30 at Fry's. It's basic and gets the job done. The image quality is poor under low light conditions. If you have to pay more, check out the other recommended options below.
Airlink SkyIPCam310 Power over Ethernet Network Camera
Very cheap POE Camera. The image quality is poor under low light conditions. Great if you want to run ethernet but not power to your camera location.
Airlink SkyIPCam 500 Network Camera
This is a reasonably cheap camera that also has night vision and audio support.
Airlink SkyIPCam500W Wireless Network Camera
Adds wireless support to the other features found in it's sister product, the Airlink SkyIPCam 500.
Axis 207W Wireless Network Camera [recommended]
Axis cameras are great but expensive. This one has very nice image quality and a lot of built in features.
D-Link DCS-G900 Wireless Network Camera
This camera is a bit dated. You can do a lot better with some of the other choices if you're looking for a new camera.
D-Link DCS-910 Network Camera [recommended]
Good choice if you want a cheap indoor wired camera.
D-Link DCS-920 Wireless Network Camera
Similar to the DCS-910 but adds wireless support.
Linksys WVC54GCA Wireless Network Camera
Bare bones network camera from Linksys. Active X (Windows) in order to setup the motion detection.
Linksys WVC210 Wireless PTZ Network Camera
Expensive and requires Active X (Windows) in order to setup the motion detection. It can only push images when motion is detected, not on a regular basis.
Panasonic BL-C131A Wireless Network Camera [recommended]
This is a sweet camera but a bit pricey. Even supports FTP to multiple simultaneous servers at once.
Panasonic BL-C140A Outdoor MPEG-4 Network Camera [recommended]
The cheapest outdoor ready camera we've found. This one supports POE (power over ethernet) which is nice since you only need to run ethernet to where you want the camera installed. It comes with a custom power adapter that attaches to the other end of the ethernet cable. Note: This camera doesn't work with standard POE routers.

Unsupported Cameras

D-Link DCS-900W Wireless Network Camera
Rather old camera that doesn't support FTP. Try the newer network cameras from D-Link if you're a D-Link fan.
Linksys WVC54GC Wireless Network Camera
Only supports Windows streaming. No FTP support. No JPEG support.