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YoSmart YS1603+4YS7903 Contact Sensor, 3V, 1320ft, 1.34lb, 8x2x4in Smart Home Starter Kit with Hub & Water Leak Sensors
Available offers (2)
Current
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Contact Sensor, 3V, 1320ft, 1.34lb, 8x2x4in
Retailer
RUBÂ 5,616.15
Available to order
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Features
- Effortless Installation
- Unmatched Long Range
- Rugged Waterproof Design
- Built-in Freeze Warning
- Expand Your Smart Home
- Long-Lasting Power
General specs
- Brand: YoSmart
- Model: YS1603+4YS7903
- Seller: Retailer
- ID: B084WYB8PM
- upc: 850024791565
- Voltage: 3 Volts
- Item Weight: 1.34 pounds
- Part Number: YS1603+4YS7903
- manufacturer: YoSmart
- Maximum Range: 1.32E+3 Feet
- Mounting Type: Floor Mount
- Control Method: App
- Battery Cell Type: Alkaline
- Country of Origin: China
- Sensor Technology: Contact Sensor
- Batteries Included: Yes
- Batteries Required: Yes
- Product Dimensions: 8 x 2 x 4 inches
- Battery Description: AAA
- Number of Batteries: 8 AAA batteries required. (included)
- First listed by seller: March 31, 2025
If you are interested in more details, you can find full information on the seller's page.
Price History for seller Retailer
Shipping options
Delivery to 
Russia
Russia
Available
🚀 Unlock Your Smart Home with the YoLink Smart Home Starter Kit. Imagine never having to worry about water damage again—this kit's got your back with a hub and four leak sensors that scream (figuratively, of course) at the first sign of trouble, sending alerts straight to your phone, email, or wherever you'll actually notice them.
🔍 Features:
- Thanks to LoRa Technology, this thing can practically send signals from the moon (okay, maybe just 1/4 mile in open air). Basements, sheds, even that weird little garden house you never use? Covered.
- Setup is a breeze—seriously, it's almost too easy. Just plug it into your router's ethernet port, and boom, you're in business. No tech degree required.
- Plays nice with Alexa, IFTTT, and Home Assistant, so it'll fit right into your existing smart home like it was always there.
- Stick these sensors near anything that holds water (toilets, water heaters, laundry machines—you get the idea) and sleep soundly knowing you'll be the first to know if something's amiss.
💡 Heads up: You'll need a YoLink Hub to get this gadget online. It's a bit old-school—no direct WiFi or local network connections here.
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| Brand | YoSmart | YoSmart | YoLink | micmi | GoveeLife | STECHRO |
| Model | YS1603+4YS7903 | YS1603+2YS7903 | YS1604+3YS7906 | H5043+H5058 | W13+WD77x4 | |
| Rating |
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| Price | RUBÂ 5,616.15 | RUBÂ 3,208.89 | RUBÂ 4,813.73 | RUBÂ 1,981.18 | RUBÂ 7,221.00 | RUBÂ 4,011.31 |
| Seller | Retailer | Retailer | Retailer | Retailer | Retailer | Retailer |
| Update | May 28, 2026 | May 28, 2026 | May 28, 2026 | May 28, 2026 | Jun 24, 2026 | May 28, 2026 |
| Voltage | 3 Volts | 5 Volts | 1.5 Volts (DC) | |||
| Maximum Range | 1.32E+3 Feet | 402.34 Meters | 1312 Feet | |||
| Control Method | App | App | App | |||
| Battery Cell Type | Alkaline | Alkaline | Alkaline | |||
| Sensor Technology | Contact Sensor | LoRa | LoRa | |||
| Batteries Included | Yes | Yes | Yes | Yes | ||
| Batteries Required | Yes | Yes | Yes | |||
| Number of Batteries | 8 AAA batteries required. (included) | 4 AAA batteries required. (included) | 12 AAA batteries required. (included) | |||
| Included Components | Detector | 3 Water Sensors, 1 Base Station | Water Detector 1Pack and Water Sensors 6 Packs | 4 x Water Leak Detectors, 1 x 2.4Ghz WiFi Gateway, 8 x AAA Batteries, 1 x User Manual | ||
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