

🏠 Upgrade your home, upgrade your life — smart control at your fingertips!
The NS51 (5 Node Pro Series) is a compact, Indian-designed smart switch module that retrofits into your existing switchboard, enabling individual control of five switches via app or voice commands. Compatible with Alexa and Google Home, it supports traditional 2-way physical switching, custom schedules, countdown timers, and offline operation within your WiFi network. With multi-user access and real-time notifications, it blends modern smart home convenience with classic switch functionality, all without rewiring.



















| ASIN | B0CGJCBBSZ |
| Actuator Type | Push Button |
| Best Sellers Rank | #3,368 in Home Improvement ( See Top 100 in Home Improvement ) #5 in Home Automation Hubs & Controllers |
| Brand | smarteefi |
| Circuit Type | 2-way |
| Colour | White |
| Compatible Devices | Alexa-enabled devices, Google Home devices, Existing switches |
| Connectivity Protocol | Wi-Fi |
| Connector Type | Plug In |
| Contact Material | Brass |
| Contact Type | Normally Open |
| Control Method | App, Voice |
| Control Type | Full |
| Controller Type | Amazon Alexa, Google Assistant |
| Country of Origin | India |
| Current Rating | 10 Amps |
| Generic Name | Smart Switch |
| Included Components | Smart Switch Module |
| International Protection Rating | IP00 |
| Item Dimensions LxWxH | 10 x 5.9 x 2.2 Centimeters |
| Item Weight | 200 g |
| Item dimensions L x W x H | 10 x 5.9 x 2.2 Centimeters |
| Item part number | Retrofit |
| Lower Temperature Rating | 4 Degrees Celsius |
| Manufacturer | Coreembedded Technologies Pvt Ltd |
| Net Quantity | 1.00 Count |
| Number of Items | 1 |
| Number of Positions | 2 |
| Operating Voltage | 230 Volts |
| Operation Mode | ON-OFF |
| Packer | Coreembedded Technologies Pvt Ltd, C31 First Floor Sector 13 Vasundhara Ghaziabad – 201014, Tech Support: 8130345141 |
| Product Dimensions | 10 x 5.9 x 2.2 cm; 200 g |
| Terminal | Screw |
| UPC | 880028908911 |
| Upper Temperature Rating | 50 Degrees Celsius |
| Wattage | 2000 Watts |
M**A
Excellent WiFi Switch Controller – Seamless Smart Home Upgrade
I’ve been using this WiFi switch controller for a couple of days now, and it’s transformed my home automation setup. It’s incredibly reliable for controlling everyday appliances remotely via the app, and the standout feature is its flawless integration with Alexa. I paired it effortlessly with my Echo devices to voice-control my jhoomer (ceiling fan), lights, and other switch-based appliances —no hubs required! What I love most is the true two-way sync: if I turn off the switch manually or through the app, Alexa instantly reflects the “off” status, and vice versa. No more confusion about the actual state of your devices. Setup was a breeze—took under 5 minutes on my 2.4GHz WiFi network. But the real hero was the support team: I called them before installation with a quick query, and they picked up on the first ring, walking me through pairing step-by-step without any hassle. Pros: • Alexa and google compatibility (works both ways for status updates). • Easy app control for scheduling, timers, and grouping multiple devices. • No WiFi dropouts even in larger rooms.
H**S
EXCEEDS EXPECTATIONS!
This Device bridges the gap between traditional electrical systems and modern smart home technology by fitting inside your existing switchboard. It offers the convenience of app and voice control and does not need complete overhaul of your home's wiring or aesthetics... Seamless Integration: The main advantage is its compatibility with existing "dumb" switches, allowing you to maintain your home's current decor. Voice Assistant Compatibility: Smooth operation and easy integration with major platforms like Amazon Alexa and Google Home, making voice commands highly responsive. Remote Control: The ability to have control remotely via a smartphone app. I am glad it does not use the generic smart life app and has its own app. Offline Functionality: Working smoothly in both online and offline modes, ensuring basic functionality even without an internet connection. Compact Size: Compact form factor that can be easily accommodated inside standard electrical boxes Automation Schedules: childs play to set tasks and assign on off timing for each switch including timers set once and forget Extra functionality includes you getting notifications on the app if the switch has been turned on or of manually and if either through voice assistant, so it acts as a security device as well. My personal take is, go for it blindly !
J**M
Excellent Smart Switch
I’ve been using the Smarteefi 6 Node Smart Switch (PRO-IO-Series) for a few weeks now, and I’m really impressed with its performance and build quality. The installation was smooth — it’s a true retrofit design, so I didn’t have to make any wiring changes. The best part is that it supports both inverter and mains together, which is a big plus during power cuts. Connectivity is stable, and the response time through the Smarteefi app, Alexa, and Google Home is almost instant. Overall, a reliable, feature-rich smart switch made in India with excellent after-sales support. Highly recommended for anyone upgrading to a smart home setup!
S**Y
Wifi switch
I recently purchased this WiFi switch and have been very satisfied with its performance. It works reliably without any connectivity or operational issues. The installation was straightforward, and the switch integrates well with my smart home system, providing responsive control through the app. Overall, it's a solid and dependable choice for anyone looking to upgrade to smart switching.
M**E
Excellent Smart Switches – Reliable & Perfect for Home Automation
I recently purchased three Smarteefi Retro Switches for my home automation setup an 8-node, 6-node, and 2-node switch and I’m extremely satisfied with the overall performance and quality. All three switches are working flawlessly. The build quality feels premium What really impressed me is the seamless integration with Google Home, Amazon Alexa. Voice control works perfectly across all platforms, and automation routines run reliably every time. The switches are stable, responsive, and do exactly what they promise. I’ve been using them daily and haven’t faced a single issue. Everything feels well-engineered and thoughtfully designed. Pros: • Excellent build quality • Smooth integration with Google Home, Alexa • Fast response and stable performance • No issues or glitches so far Overall, this is a top-quality smart switch solution for anyone looking to upgrade their home automation system. Highly recommended for reliability, compatibility, and performance.
Trustpilot
Hace 5 días
Hace 2 meses