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GREENCYCLE KS-SF20R Motion Sensor Doorbell: 5 Modes Motion Sensor Alarm
🚨 5 Modes Motion Sensor Alarm - Think of this as your home's Swiss Army knife for security. It's got more tricks up its sleeve than just ringing when someone's at the door. Welcome guests, scare off intruders, light up your path, or set the mood with color—all from one sleek device. Ideal for keeping an eye (or ear) on those sneaky spots like driveways and porches.
🎵 36 Ringtones & 5 Welcomes Doorbell Rings Languages - Bored of the same old ding-dong? Spice it up with 36 different sounds or greet visitors in one of 5 languages. Plus, you can tweak the volume and brightness so it's just right—whether you're trying not to wake the baby or you just like things loud and clear.
📡 Sensitive & Wide Wireless Range - This little gadget's got reach. Up to 280 meters, to be exact. And with its infrared sensor, it'll catch movement from 2 to 8 meters away. So, yeah, it's pretty much got your back (and your front yard).
🏠Expandable Wireless Home Security - Want to turn your place into Fort Knox? Go ahead, add up to 32 motion sensors and 8 remotes. Just remember, it's not a fan of water—keep it dry.
🔧 Easy to Install & Use - No need to call in the pros. Pop in some batteries or plug it into a USB port, and you're good to go. Comes with mounting bases, and you can twist and turn the sensor and receiver to get the perfect angle. Easy peasy.
Features
- 36 Ringtones & 5 Welcomes Doorbell Rings Languages
- Sensitive & Wide Wireless Range
- Expandable Wireless Home Security
- Easy to Install & Use
- 5 Modes Motion Sensor Alarm
General specs
- Brand: GREENCYCLE
- Model: KS-SF20R
- Seller: Amazon
- ID: B078PKYRS7
- batteries: 1 AAA batteries required.
- Frequency: 433.92 MHz
- Item Weight: 7 ounces
- Part Number: M-CA-KS-SF20R-1PK
- manufacturer: GREENCYCLE TECH INC.
- Power Source: Battery Powered
- Maximum Range: 8 Meters
- Mounting Type: Door Mount
- Number of Pieces: 1
- Battery Cell Type: Alkaline
- Country of Origin: China
- Batteries Included: No
- Batteries Required: No
- Product Dimensions: 0.79"D x 1.57"W x 2.36"H
- Included Components: 1* Receiver, 1* Infrared Sensor
- Installation Method: Surface-Mounted
- Number of Batteries: 1 AAA batteries required.
- Item Package Quantity: 1
- First listed by seller: 4/3/25
If you are interested in more details, you can find full information on the seller's page.
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Top live offer
$22.89
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Third-party seller
FBA
Shippable
New from
$22.89
Only from New + Shippable live offers
New offers
Third-party seller
· FBA · Shippable
$22.89
Third-party seller
· Shippable
$23.99
Offers updated: 6/3/26
Price History for seller Amazon
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Delivery to 
Russia
Russia
Available
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| Brand | GREENCYCLE | AMHEY | FOVKSUC | Xiaomi | TECKNET | TECKNET |
| Model | KS-SF20R | DW520+P827 | U1-Black | MJML06-FJ | HWD01990 | WA878 |
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| Price | $22.89 | $18.62 | $13.99 | $74.99 | $9.99 | $9.99 |
| Seller | Amazon | Amazon | Amazon | Gshopper | Amazon | Amazon |
| Update | May 9, 2026 | Apr 27, 2026 | Mar 21, 2026 | Jul 25, 2024 | Apr 27, 2026 | May 12, 2026 |
| Item Weight | 7 ounces | 5.9 ounces | 8.4 ounces | 0.22 | 4.2 ounces | 104.33 |
| Power Source | Battery Powered | Battery | Battery Powered | AC | ||
| Mounting Type | Door Mount | Wall Mount | Wall Mount | Doorbell Mount | ||
| Battery Cell Type | Alkaline | Alkaline | Lithium Manganese Dioxide | Lithium Ion | ||
| Country of Origin | China | China | China | |||
| Batteries Included | No | Yes | Yes | Yes | No | No |
| Batteries Required | No | Yes | Yes | No | Yes | No |
| Product Dimensions | 0.79"D x 1.57"W x 2.36"H | 5.51 x 4.21 x 2.13 inches | 3.15 x 2.8 x 0.8 inches | 4.53 x 2.48 x 2.13 inches | ||
| Included Components | 1* Receiver, 1* Infrared Sensor | 1* user manual, Motion Sensor Alarm Receiver, Motion Sensor Alarm detector, Batteries | 1 Ă— Transmitter (battery included), 2 Ă— Plug-in receiver, 1 Ă— Adhesive tape, 1 Ă— Screwdriver, 2 Ă— Screw, 2 Ă— Anchor, 1 Ă— User manual | 1x wireless doorbell | ||
| Voltage | 3 Volts (DC) | 120 Volts (AC) | <num_from>, <num_to> | |||
| Material | ABS | Plastic | ABS | |||
| Operating Temperature | -4, 122 | -4°F to 140°F | -20, 60 | |||
GREENCYCLE KS-SF20R 5 Modes Motion Sensor Alarm
$22.89
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