Amazon announced their "Big Spring Sale" over the weekend. Although it's not supposed to start until March 20, many items are already on sale, like these Eufy security cameras, currently selling for up to 46% off.

I love my Eufy security cameras because I don't need to pay any monthly fees. Eufy does offer a subscription (four different plans), but that's just for its cloud storage service. Some of their devices aren't even compatible with cloud storage since they can only use local storage microSD cards to save their footage. All of their features, like live streaming, push notifications and two-way audio, are subscription-free. Here are my favorite Eufy deals from Amazon's sale.

EufyCam 2C two-camera bundleThis outdoor two-camera bundle for $129.99 (originally $239.99) comes with the HomeBase S280, which saves up to 16 GB of footage in local storage with no fees (about three months of footage). The EufyCam 2C cameras are waterproof, with an IP67 rating. They provide up to six months of monitoring before they need to be recharges. The cameras also have 1080p HD resolution, motion sensing with push notifications, night vision, and other features. This is the lowest price this bundle has been, according to price comparison tools.

Eufy outdoor two-camera bundle: $129.99 (originally $239.99)

EufyCam S220 four-camera bundleAnother bundle at its lowest price (according to price comparison tools) is the EufyCam S220 with the 4-Cam Kit bundle, going for $309.98 (originally $519.99) after a 40% discount. This bundle includes four EufyCam S220s, which have 2K resolution, a 135-degree field of view, up to six months of battery life, two-way audio, an IP67 waterproof rating, human face detection, a spotlight, and 16GB of video storage (which is about three months worth). It also comes with the same HomeBase 2 as the last bundle. Read more about the features on the official Eufy website.

EufyCam S220 with the 4-Cam Kit bundle: $309.98 (originally $519.99)

The Eufy Security Outdoor Cam E210If a bundle seems excessive, individual outdoor cameras are also for sale. The Outdoor Cam E210, for $44.99 (originally $79.99), is a wired camera that is easy to install, waterproof, has night vision, an automatic spotlight, and no monthly fee. This matches the lowest price I've seen for this camera. It's easy to install with a magnetic mountbut you do need to make sure you're within 20 feet of a power outlet so the cable reaches it. You can choose whether to use local storage with an SD card or use the cloud-based feature for a fee. The cloud can also be used to back up your local storage. Read all about the features and specs on Eufy's website.

Outdoor Cam E210: $44.99 (originally $79.99)

Eufy video doorbellsIf you're looking for security doorbells, the wired Wi-Fi Doorbell Camera with a wireless chime is $59.99 (originally $99.99) and the Wireless Battery-Powered Doorbell Camera is $139.99 (originally $179.99). I've been using the wireless camera for a year now and have enjoyed not paying any monthly fees.

Wired Wi-Fi Doorbell Camera: $59.99 (originally $99.99)

Wireless Battery-Powered Doorbell Camera: $139.99 (originally $179.99)