The 7 Best Doorknob Alarms To Welcome Security

An easy to install, easy to use, and easy to come by an answer to home security is the SECRUI Door Sensor Alarm, which can easily tell if anyone gets in your home.

This alarm features a magnetic sensor that emits a loud sound when a window or door is suddenly opened. It's perfect for ensuring your home has a good security system or just making sure your kids don't sneak out at night.

The alarm specifically rings at a whopping 120dB so anyone nearby can hear it. It features four alarm modes, ordinary alarm, doorbell mode, alarm and stops mode, and door closing reminder mode.

It is easy to install because all you need to do is stick the sensor where you want it to go, and the installation is practically finished. It can also be used as a doorstop alarm, pool door alarm, garage door alarm, or sliding door alarm.

The magnetic sensor is ultra-sensitive so it can quickly detect if your doors and windows have moved while also being powered by a battery that still works in blackouts.

The product is easy to install and emits a very loud sound when triggered. The numerous alarm modes make it so the alarm can have different purposes during different times and situations in the day.

It can also be an alarm for other types of doors and possible entrances around your home. The sensor is ultra-sensitive and runs on the battery as well. This is one of the best doorknob alarms if you need something quick and easy to install.

The volume is really loud and nonadjustable, making it painful for people with sensitive hearing.

Deterring any intruder is no challenge with the WSDCAM Door Alarm, this alarm keeps your home safe from big and small intruders.

The door security device has a loud 105 dB alarm that can deter the intruder while also waking yourself and everyone else up, including your neighbors. The door has four modes; namely, arm, disarm, panic, doorbell. These modes can be controlled via remote control from up to 49ft. It also has a stick-and-peel installation, which makes it easier to set up

The alarm system is loud but not loud enough to hurt your ears too much once triggered. The multiple alarm modes let it be used even in everyday circumstances and not just for security reasons. It can be remote-controlled, which is good when you're too lazy to walk up to every alarm in the house. Easy to install into various areas of your house.

Activating and deactivating the device is loud and uncomfortable, so setting them up is easy, but pairing each alarm with the remote is a loud experience.

Affordability and security come together in the Noopel Door Window Alarm, which allows for an effective and easy to install a security system that doesn't cost you a fortune. If you need multiple alarms around your home, the Noopel Alarm is one of the best doorknob alarms on the market at its price point.

This product features a magnetic door or window alarm sensor of 120db, which can easily catch people's attention. This can also be used to prevent children from going out of the house without permission, other than that it can be used in other places like the office or garage.

It is ultra-thin with only an on-and-off setting with the batteries included. No wiring needed, just double-sided tape. It's ultra-sensitive while also having an indicator to show its battery life. Lastly, it's more affordable than other options in the market.

The alarm is loud so that it can be heard up until the next house. It can be used for things other than security because of its ultra-thin nature, which conceals it well. It's easy to install with no wiring needed. It is ultra-sensitive and very affordable, so it's an efficient and cost-effective way to increase security.

It's loud to the point it may be harmful to the ears whenever triggered, and it is sometimes too sensitive because it activates even though it hasn't moved.

An alarm disguised as a doorknob isn't a normal product to come by. If you’re looking for a discrete and effective alarm, the Streetwise PRO-TEC-DOOR Alarm helps you protect your door while being hidden in plain sight.

The sensor senses either touch or vibrations to trigger the alarm. It's good to use for heavy doors like metal and wooden ones. The alarm rings at 110db to attempt to scare away the intruder. It's powered by a small battery and is made from plastic.

The product is a sneakier version of a regular alarm that activates upon touch or strong vibration from forced entry. The alarm rings loudly to faze the intruder. Being powered by a small better makes sure it lives while a blackout may happen.

The alarm is fragile to the point that a normal person opening or closing the door with a regular amount of force can cause the alarm to fall apart with its batteries.

The Mace Brand Portable Door/Multipurpose Alarm can be installed on a door, and it can be removed and taken with you as a personal alarm when you travel. This alarm will provide valuable protection for you, your belongings, and your loved ones.

Mace is known for making high-quality security products, so it comes as no surprise why they make one of the best doorknob alarms on the market.

The product features a cable lock with a vibration sensor and a panic button to trigger the alarm instantly. It can detect when the loop cable is cut, and battery removal will trigger the alarm. It is also made in a convenient size, making it easy to carry around or pack in bags for travel.

Most customers were satisfied with the product, saying it worked perfectly and would scare anyone trying to come in.

The alarms have quality control problems - some may not function properly, with the alarm going off without any vibration, or the alarm not sounding when the door is opened. The alarm can be too sensitive to vibration, and battery life is also said not to last very long.

This dual-purpose doorknob alarm can be used as both a burglar alarm and a personal flashlight, which is perfect for traveling and staying at home.

The alarm can function as both a burglar alarm and an LED flashlight. Using the plastic loop, it may be hung on any metal doorknob, and the alarm will sound when an intruder touches the knob. The sensitivity setting may be adjusted. The product uses 2 AAA batteries (not included).

The alarm is loud and is sure to wake up house owners if they are asleep. Customers enjoy the sensitivity adjustment feature, and the battery life is long.

The product is very sensitive, even at the lowest sensitivity setting - it may go off in thunderstorms or when the wind blows. The alarm may be too loud, hurting ears if one is close to it. The alarm is also reported to go off at random times, even with no movement

This doorknob is easy to set up and convenient to use. You can set this to deter possible intruders, especially when you’re away on vacation.

All you need to do is to arm the device and hang it on your door. The alarm is triggered by vibration. The moment someone tries to open your door, a 100dB alarm sets off enough to scare an intruder and possibly notify nearby neighbors up to 600 ft away.

No wiring needed because it is battery powered by 3 AAA batteries. It is easy to use. You have 3 modes to choose from OFF/ALARM/CHIME. You should choose chime if you just need to be lightly notified when people come in and go out of your home. The alarm has a 30-second delay for instances that it is accidentally touched. But will immediately sound the alarm if touched for the 2nd time.

There is no way to tell if the battery is about to go out. You may accidentally set up an alarm with dying batteries.