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The Upgraded Bed Sensor Alarm by Nesthao is a wireless motion detection system designed to prevent falls and monitor elderly or dementia patients. Featuring a 918-foot transmission range, 5 volume levels, and dual power options (battery and USB), it offers precise, non-intrusive alerts to caregivers without disturbing the patient. Easy to install under beds or at doorways, it ensures timely intervention and peace of mind for families and professional caregivers alike.










| ASIN | B096WBQWBX |
| Battery Description | Alkaline |
| Best Sellers Rank | #5,384 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Patient Alarms |
| Brand | Nesthao |
| Color | 1 Caregiver Pager+1 Sensor |
| Compatible Devices | Motion Detector |
| Control Method | App, Touch |
| Customer Reviews | 4.6 out of 5 stars 912 Reviews |
| Item Weight | 0.64 Pounds |
| Manufacturer | Nesthao |
| Maximum Range | 182 Meters |
| Model Number | KS-SF20R |
| Mounting Type | Door Mount |
| Number of Batteries | 3 AAA batteries required. (included) |
| Power Source | Battery Powered |
| Sensor Technology | Contact Sensor |
| Smart Home Compatibility | Not Smart Home Compatible |
| UPC | 767235068570 |
L**P
Reliable, affordable safety for loved ones
This is a great little device at an affordable price!! Setup was very straightforward. I was able to place the sensor under my mother‘s bed and did a number of test runs at different angles to find the sweet spot to place it. It works like a charm and alerts as soon as she swings her legs over so that I have time to get in and help her up to the restroom. This is a game changer for fall prevention and for people with cognitive issues too. I was a little worried based on other reviews, that the alarm would be too loud, but that’s not the case at all. There is a nice amount of volume adjustment. I like being able to keep the unit plugged in with the micro USB while using the batteries as a back up, should the power go out. Highly recommend!
A**.
Works Perfect Out of the Box 👍
This is an amazing product. We have severely autistic nonverbal teenager with limited communication abilities. They injured their knee a week ago and cannot bear weight on it. With pain meds on board and the more bored at limited activity they get- they more prone they are to take off on their own around the house and it’s not safe. I bought this and installed under the dresser, aimed at the floor bedside and it works perfectly. The minute they swivel their legs toward the floor, it chimes and we know they are trying to get up and can get to them in time. It has been so helpful for this mama to actually rest. The price point is great. The first unit we bought had a button break within a few days but the second one has been doing fine. Long term will tell but it’s saving my sanity right now!
A**T
Great for caregivers of elderly parents
I purchased this for when my 90+ year old father who came to stay with me. He has previously fallen out of bed when going to the bathroom and bought this in hopes that it would let me know when he is about to get out of bed. It works wonderfully. When my father starts to swing his leg over his bed the sensor picks it up and the monitor that I have near me will sound. I am able to go to his room before he gets himself up. It prevented falls for his visit. You can choose different alarm tunes from music to flashing lights and adjust volume. For the price it is worth it.
S**S
This has been a real help in our home.
This is a great product. Elderly father-in-law lives with us. He is a high fall risk and has dementia. Wanted something that would alert us when he sat up on the edge of his bed in the night before trying to stand and walk to the bathroom. We put it on the floor under his bed. It worked perfect. The alarm part is portable so my husband sleeps with it by his night stand. It has adjustable volume level so you can set it for whether you are a light or heavy sleeper to wake you up at the first movement of patient. Also, because it is portable when his Dad lays down in the afternoon my husband brings it with him to the living room while he watches TV so he is always aware of what his Dad is up to. The only modification I made to the motion detector for our use was that the visual area was wide so even after my husband got his Dad up it would continue to detect motion when they got out of the room and into the hall. Because my father-in-law moves slowly the alarm would go off numerous times. By putting a piece of masking tape over the lens on the area on the side by the hall I was able to restrict the motion pick up to the area where he put his feet over the bed and once my husband was helping him toward the hall the alarm would stop. Also, nice is there are many choices for alarm sounds/songs.
T**L
Works Well but....
My wife has Alzheimers and sleeps in a separate room. She tends to get up 3 or 4 times during the night to use the restroom or just wander the house. I purchased this to wake me up when she gets out of bed so I can keep here from wandering out of the house without me knowing. The unit was very easy to set up and install. I screwed the transmitter onto a piece of 2 x 6 and set it on the bottom bookshelf beside her bed. The receiver sits on the nightstand next to my bed or I carry it around the house with me wherever I go, even outside on the patio. It works well everywhere in our single-story house, the range appears great. The receiver unit is very loud, and that is my only negative. I wish the volume could be stepped down lower than the lowest setting provided. Even on the lowest volume setting, when I am in a deep sleep and it goes off, you just about have to scrape me off the ceiling. It is way too loud for me and I am hard of hearing. I have prior electronics training and experience, so after the warranty runs out, I may open it up and install a volume control potentiometer so that I can turn the volume down below heart attack levels. The receiver also has very bright LED's on it that flash a multicolored strobe along with the audio alarm. They are very bright and light up my room like a five alarm fire scene. I'll tell you, with the combination of the bright LED's and the loud alarm, there is zero chance it won't wake you and the entire household up. Another small issue I have is that the width of the transmitter detection beam is pretty wide. At first I set the transmitter on the bottom shelf of a bookcase right adjacent to where my wife would get out of bed. The problem is that when she first gets up, she stands there for a while looking for her glasses and all the while the alarm keeps going on and off and on and off and on and off. So I moved the transmitter down towards the foot of the bed. This way it won't go off until she gets up, does her searching, gets her glasses on and then walks past the end of the bed. But still the beam width is pretty wide. I wish it were adjustable or if they could put adjustable blinders around the sensor so the beamwidth can be adjusted. I had to fabricate my own little cardboard blinders to limit the beam width to about a 3 feet wide detection zone. Pros: Wireless works very well, the range is great, the alarm is loud, LED's are bright, lots of alarm tones to select, a good value overall, works well for my application. Cons: Too loud for me even on the lowest setting - wakes up the whole house. I wish it had a continuous volume adjustment from max all the way down to zero, transmitter beam width is not adjustable and is pretty wide.
R**T
Great product
This has allowed me to sleep in my bed and my wife with dementia in hers, as I always know when she gets up. Works perfectly. Now we both sleep well.
D**H
Works well
Love this for my parent. It's a bit loud even on the low volume, so I stuck it in the linen closet so it's not annoying at night. In the day I put it under a couch pillow. And it works well.
S**A
Keep your loved one safe!
This is super sensitive and works well. I placed it under my husbands bed, so that when he got up it sensed his feet on the floor. Works like charm. I wish I had one when my kids were teenagers so I could catch them sneaking out at night!
A**O
¡Altamente recomendable!
Funciona perfecto. Es muy útil para saber cuando un paciente pone alguna parte de su cuerpo en el piso. La alarma tiene un muy buen volumen.
J**.
Inconvenience
Needs to be paired again and again once switched off and then turned on. Inconvenient
M**A
Bom!
Gostei. Tem me ajudado muito. Já não fico sem. Coloco o sensor embaixo do sofá ou da cama e quando a pessoa se levanta ele avisa no receptor que fica comigo pela casa. Tenho gatos, então às vezes bipa porque o bichano passou em frente tb.. É um sensor de movimento, então dá pra usar em qualquer lugar da casa, avisa quando detecta pessoas ou animais. Veio sem pilhas. São 6, 3 palito e 3 pequenas. O receptor tb poderia ter um led indicativo de funcionamento, além do botão liga/desliga. E uma tela, pra gente ver imagens tb, como numa babá eletrônica. Mas do jeito que é já me serve demais.
R**O
Estupendo
Me ha funcionado muy bien. Mejor que los de Wifi. Después de un año casi, las baterías han durado todo este tiempo. Además el alcance se mantiene cn todo y paredes de ladrillo y concreto. Ella está en el primer piso, y yo en el segundo. Si nno fuera por este dispositivo, mi madré posiblemente ya hubiera sufrido varios accidentes o estaría ya muerta. En mi caso lo coloco vertical en el piso, para detectar en cuanto quiere bajarse de la cama. Ha funcionado siempre sin falla.
M**A
Excelente? O que eu precisava é buscava há muito tempo!
Produto excelente e atendeu às minhas necessidades. Minha mãe tinha caído algumas vezes e mesmo com câmera eu não acordava. Coloquei o sensor embaixo da capa de casal, no centro, próximo aos pés. Nessa parte do aparelho coloco 3 pilhas AAA - mas é compatível com o cabo C. Antes que ela toque o chão soa um alarme, permitindo que eu vá até o quarto dela! O pager fica ligado na tomada, com o cabo C - mas é compatível com 3 pilas AA. Outra vez, coloquei o sensor na entrada da cozinha, um local mais perigoso. Nem acredito que encontrei esse produto!
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