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A number of insurance companies offer reduced prices for cars that include a dash cam. This doesn't go for all insurance providers though, so it's best to do your research or speak to your insurance provider before going ahead. For example, Nextbase offers a discount of up to 30% for dash cam drivers.

Dash cams are most commonly priced from between $150 to $400, depending on the number of cameras and special features that are packed with the model. There are cheaper models under the $100 price point but you will be getting the bare minimum. The camera quality may not be HD either, so that's a factor to consider. With deals and sales, we'd like to think you'd be able to get a quality camera from between $100 to $200.

Best Buy has this Nextbase model reduced by $100 ahead of Black Friday. It has a recording resolution of 1,920x1,080 with automatic incident detection, a 140-degree field of view and rear window camera.

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Having made your choice of lane, get into it as soon as you can do so safely and stay in it, but look out for other drivers who may change lanes suddenly. Traffic may overtake on either side on a one-way road.

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Think of a dash cam as a security monitor for your vehicle, so that if an emergency arises or an unfortunate accident takes place, the dash cam will have the whole situation recorded. Having the evidence in video form can be extremely beneficial for insurers as well as the police or the courts. It's always best to be well prepared in case the worst happens.

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Side roads leading off a one-way road may also be one-way. You should expect traffic to join the road from either side, and if you are intending to turn off down a side road, look well ahead to check that entry to it is actually allowed.

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It is not always easy to tell if you are about to enter or are on a one-way road, and perhaps your view of the sign is blocked by a parked vehicle. Look at the vehicles parked in the street. On a one-way road they will all be facing one way. Vehicles are normally parked facing the same direction as the traffic flow. Sometimes lane indication arrows may guide you.

The Vantrue N4 is one of our favorite dash cams, and right now you can snag it for a great price. This three-channel device is able to record the road ahead as well as inside and behind the car all at once in HD or greater. It also has motion and impact detection, infrared night vision and much more. You don't have to pair it with your phone to manage any settings -- there are plenty of on-device buttons for getting it set up. Remember to clip the on-page coupon to get the full discount.

Traffic on one-way roads flows in one direction only. The 'One-way traffic' sign indicates the direction of the permitted traffic flow. You must not drive in the opposite direction. The sign can be found at the entry to a oneway road and at intervals along a one-way road.

This cam offers a 3-inch IPS display and even comes with a 64GB microSD card to allow you to store even more video in the camera. It comes with a reverse camera in addition to the forward-facing one, and it has modes for loop recording, motion detection and more. This deal is exclusive to Prime Members. Be sure to select the option with the microSD card and clip the 10% off on-page coupon to score the full discount. Non-members can still score the cam at a $16 discount bringing it to $54.

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If there is a traffic island with a 'Pass either side' sign, there is no need to change lanes as the traffic lanes on both sides of the island will meet along the same route.

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This Redtiger 4K dash cam kit is probably one of the cheapest front and back combos you're going to find, especially at that resolution. Besides the 4K day camera, it has 2K night vision, is GPS-enabled and has Wi-Fi so you can connect through your phone. The bundle even comes with a free 64GB microSD card. There's also a parking monitor, so it can capture any accidents while the car is parked. Just be sure to clip the coupon to get the full discount.

With Black Friday and the holiday season not that far away, all retailers are upping their deals too. We've highlighted the best dash cam offers currently available below and will continue to update this list as discounts come and go, so check back often.

Protecting your home with a security system is common these days. Just in case things go bad, it's useful to have. The same can be said for a dash cam and your vehicle. After all, cars aren't exactly cheap, so having one to back up any claims can be pivotal. The only issue is usually the price of entry. Thankfully, we know which discounts are worth snapping up and which ones are worth avoiding.

Our expert deal-hunting staff showcases the best price drops and discounts from reputable sellers daily. If you make a purchase using our links, CNET may earn a commission.

‘One-way traffic' sign - drive in the direction indicated.   If there is a traffic island with a 'Pass either side' sign, there is no need to change lanes as the traffic lanes on both sides of the island will meet along the same route. Side roads leading off a one-way road may also be one-way. You should expect traffic to join the road from either side, and if you are intending to turn off down a side road, look well ahead to check that entry to it is actually allowed. 'No entry' sign - no entry for all vehicles, do not drive past this sign.

A 24-hour flash sale reduces this Rexing S1 Pro 1080p dash cam to $100. That's a big $160 savings. Pretty good considering this model has built-in GPS, 64GB of memory, Wi-Fi and a 170-degree field of view.

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Contra-flow bus lane (franchised buses) sign - do not drive onto the bus lane on the opposite side of the road at any time.

Lane discipline on a one-way road is important. Select the lane which will lead to your destination, using either lane markings or direction signs for information, then stay in it. Keep to the left most lane if you are turning to the left; the right most lane if you are turning to the right. If you are going straight, be guided by road markings. When the road is not wide enough for a middle lane, you may choose the left or right of the road.

Contra-flow bus lane Bus lanes sometimes operate on one-way roads. Information on bus lanes can be found on the page before. Contra-flow bus lanes are lanes that operate on one-way roads in the opposite direction to the normal traffic flow. Contra-flow bus lane (franchised buses) sign - do not drive onto the bus lane on the opposite side of the road at any time. Sign placing at the beginning of a contra-flow bus lane (franchised buses) - No entry of motor vehicles except franchised buses.

The best dash cameras offer tons of advanced features, but like most tech, those upgrades are going to cost you. That's why seeking out deals is important, and we've gathered plenty of decent options so you can score one under full price but still have plenty of bells and whistles.