KEWEISI KWS-303 AC Monitor: WiFi remote control via mobile app
For homeowners and DIY enthusiasts managing energy costs, this Din Rail AC Monitor offers more than just measurements. It provides clear insights into your home's electrical health, helping you spot inefficiencies before they become costly bills.
The 0.96-inch color TFT screen displays eight key parameters at once, so you can check voltage and power factor with a quick glance, even in a dim basement panel. With WiFi control on the KWS-303WF model, you receive real-time alerts on your phone if voltage spikes, giving you peace of mind while away. Installation is straightforward using standard guide rails, no electrician needed, making it a practical upgrade for any electrical box.
Features
- 8-in-1 digital display for electrical parameters
- Standard rail installation without screws
- Compact size for easy wiring
- High definition color TFT screen
- Power off memory and protection features
- WiFi remote control via mobile app
General specs
- Brand: KEWEISI
- Model: KWS-303
- Seller: Banggood
- ID: 2025237
- Size: Compact, portable
- Model: KWS-303WF, KWS-303L, KWS-303
- Time Range: 99 days
- Power Range: 0-12kW
- Flip Screen: Yes
- Reset Timer: Yes
- Curved Graph: App/PC (only for models KWS-303WF, KWS-303L)
- Display Type: 8-in-1 Digital Display, 0.96-inch color TFT screen
- Energy Range: 0-9999 kWh
- Installation: Standard rail installation without screws/fasteners
- Factor Power: 0.00-1.00 PF
- Switch Timer: App-based (only for model KWS-303WF)
- Battery Reset: Yes
- Current Range: 0-40A
- Voltage Range: AC 100-290V
- Remote Control: WiFi networking for mobile app cloud control
- Frequency Range: 50-60Hz
- Memory Off Power: Yes
- 485 Communication: Only for model KWS-303L
- Screen brightness: Adjustable
- Temperature Range: -4°F to 302°F
- Display Parameters: Voltage, Current, Power, Frequency, Power Factor, Active Energy, Timing
- Included in Package: 1 x AC Monitor (model as chosen)
- Overvoltage Protection: Yes
- Protection Undervoltage: Yes
- First listed by seller: 2/23/26
If you are interested in more details, you can find full information on the seller's page.
Price History for seller Banggood
| Date | Price |
|---|---|
| 2/24/26 | $15.00 |
| 2/23/26 | $14.92 |
Shipping options
United States
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| Brand | KEWEISI | KEWEISI | RMshebei | eWeLink | ZMAI | KEWEISI |
| Model | KWS-303WF, KWS-303L, KWS-303 | KWS 303WF, KWS 303L, KWS 303 | WiFi Smart Energy Meter | |||
| Color | ||||||
| Rating |
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| Price | $15.00 | $12.61 | $17.00 | $19.01 | $26.62 | $13.01 |
| Seller | Banggood | Banggood | Banggood | Banggood | Banggood | Banggood |
| Update | Feb 27, 2026 | Mar 1, 2026 | Mar 1, 2026 | Mar 1, 2026 | Mar 1, 2026 | Feb 27, 2026 |
| Display Type | 8-in-1 Digital Display, 0.96-inch color TFT screen | LCD | Color Screen | |||
| Voltage Range | AC 100-290V | AC 100-290V | 170-270V | |||
| Installation Type | DIN rail | DIN Rail, Surface Mount | Din Rail | |||
