Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your Kasa Smart Outdoor Smart Plug KP400. Please read this manual thoroughly before using the device to ensure proper functionality and safety.
Safety Information
Important Safety Instructions:
- Do not immerse the device in water.
- Ensure the device is placed at least 8 inches (20 cm) from the ground.
- Avoid direct water streams onto the device.
- Only use with compatible electrical loads within the specified wattage (1875 watts) and voltage (120 volts).
- Do not disassemble or attempt to repair the device.
- Keep out of reach of children.
- Ensure the electrical outlet is properly grounded.

Figure 1: Installation guidelines for the Kasa Smart Outdoor Plug, illustrating the recommended minimum height from the ground (8 inches) and warnings against full immersion or exposure to direct water streams to maintain its IP64 weather resistance.

Figure 2: Explanation of the IP64 rating for the Kasa Smart Outdoor Plug, indicating its level of protection against solid objects (dust tight) and liquids (splashes of water from all directions).
Package Contents
Verify that all items are present in your package:
- 1 x Kasa Smart Outdoor Plug KP400
- 1 x Socket Cover
- 1 x Clamp and Screw
- 1 x Quick Start Guide

Figure 3: The Kasa Smart Outdoor Smart Plug KP400, showcasing its design with two individually controllable outlets and the integrated power cord.
Setup Guide
- Download the Kasa Smart App: Search for "Kasa Smart" on the Apple App Store or Google Play Store and download the app.
- Plug In the Smart Plug: Connect the Kasa Smart Outdoor Plug KP400 to an outdoor electrical outlet. Ensure the outlet is protected from direct weather exposure if possible, even though the plug is weather-resistant.
- Configure with Kasa App:
- Open the Kasa Smart app and create a TP-Link ID or log in if you already have one.
- Tap the "+" icon in the top right corner of the app to add a new device.
- Select "Smart Plugs" and then choose "Outdoor Smart Plug (KP400)".
- Follow the on-screen instructions to connect the smart plug to your home Wi-Fi network (2.4 GHz only).
- Secure Placement: Use the provided clamp and screw to secure the smart plug's cable and ensure it is positioned at least 8 inches from the ground.
Operating Instructions
The Kasa Smart Outdoor Plug KP400 offers versatile control options:
App Control
Control your connected devices from anywhere using the Kasa Smart app. Each of the two outlets can be controlled independently.
- On/Off Control: Toggle power to each outlet directly from the app.
- Scheduling: Set custom schedules for your devices to turn on or off automatically. This includes options for specific times, or based on sunrise/sunset.
- Timers: Set a countdown timer for devices to turn off after a set duration.
- Away Mode: Randomly turn devices on and off to give the appearance that someone is home.

Figure 4: Kasa Smart app interface demonstrating scheduling capabilities, allowing users to set devices to turn on/off at specific times or relative to sunset/sunrise.

Figure 5: Remote control functionality of the Kasa Smart Outdoor Plug, enabling users to manage their outdoor devices from any location using the Kasa Smart app.
Voice Control
Integrate your Kasa Smart Outdoor Plug with popular voice assistants for hands-free control.
- Amazon Alexa: Enable the Kasa skill in the Alexa app and link your Kasa account. Then, use commands like "Alexa, turn on the outdoor lights."
- Google Assistant: Link your Kasa account in the Google Home app. Use commands like "Hey Google, turn off the patio fan."
- IFTTT: Connect your Kasa account to IFTTT (If This Then That) to create custom automations with other smart devices and services.

Figure 6: Voice control in action, showing how the Kasa Smart Outdoor Plug can be operated using voice commands through compatible smart assistants to manage outdoor lighting.
Maintenance
To ensure the longevity and optimal performance of your Kasa Smart Outdoor Plug KP400:
- Cleaning: Disconnect the plug from power before cleaning. Wipe the exterior with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
- Environmental Protection: While IP64 rated for weather resistance, it is recommended to install the plug in a location that minimizes direct exposure to extreme weather conditions (e.g., under an overhang or in a weatherproof enclosure) to extend its lifespan.
- Socket Covers: Ensure the included socket covers are properly used on any unused outlets to prevent dust and water ingress.
Troubleshooting
Common issues and their solutions:
| Problem | Possible Cause / Solution |
|---|---|
| Device cannot connect to Wi-Fi. |
|
| Plug is unresponsive in the app. |
|
| Voice control not working. |
|
| GFCI outlet tripping. |
|
For further assistance, please refer to the support section or the official Kasa Smart website.
Specifications
| Feature | Detail |
|---|---|
| Model Number | KP400 |
| Connectivity Protocol | Wi-Fi (2.4 GHz only) |
| Number of Outlets | 2 (individually controllable) |
| International Protection Rating | IP64 (Dust tight, protected against splashes of water from all directions) |
| Operating Voltage | 120 Volts |
| Wattage | 1875 watts |
| Control Method | App (Kasa Smart), Voice (Alexa, Google Assistant, IFTTT) |
| Dimensions (L x W x H) | 4.9 x 2.38 x 2.29 inches |
| Item Weight | 10.2 ounces |
| Operating Mode | Manual and Automatic |
| Plug Format | Type B (3-prong) |
| Material | UL94-V0 PC (Plastic) |
Warranty Information
The Kasa Smart Outdoor Smart Plug KP400 comes with a 2-year warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims.
For detailed warranty terms and conditions, please visit the official Kasa Smart website or contact customer support.
Support
For technical support, frequently asked questions, and additional resources, please visit the Kasa Smart support page:
You can also find the official user manual in PDF format here: User Manual (PDF)
For direct customer service, please refer to the contact information provided on the Kasa Smart website.







