1. Okwu mmalite
The INKBIRD IIC-400-WIFI Smart Indoor Sprinkler Controller is designed to provide intelligent and efficient watering for your garden or lawn. With Wi-Fi connectivity, you can control and monitor your irrigation system remotely via a smartphone application. This manual provides detailed instructions for installation, operation, and troubleshooting to ensure optimal performance of your device.

2. What You Will Get
Upon unboxing your INKBIRD IIC-400-WIFI Smart Sprinkler Controller, you should find the following items:
- Protective Face Plate
- Smart Sprinkler Controller Unit
- 3x Screws with Anchors for mounting
- Ihe nkwụnye ọkụ
- Screwdriver
- 4x Threaded Wiring Connectors
3. Ngwa ị ga-achọ
Before beginning the installation, ensure you have the following tools and access:
- 2.4GHz Wi-Fi Access
- Smartphone or Tablet (iOS 13/Android 7.1 or later)
- Screwdriver (gụnyere)
- Hama
- Igwe ọkụ eletrik
4. Nkọwapụta
4.1. Nkọwapụta ọkụ eletrik
| Oke | Uru |
|---|---|
| Ntinye nkwụnye | US - AC120V 60Hz AU - AC230~240V 50Hz EU - AC230V 50Hz UK - AC240V 50Hz |
| Mmepụta ihe nkwụnye | AC24V 1000mA |
| Ntinye njikwa | AC24V 1000mA |
| Mpụta mpaghara | Compatible with AC24V control valve |
| Master/Pump Valve Output | AC24V |
4.2. App Installation Requirements
- Ngwa dakọtara iOS ma ọ bụ gam akporo (iOS 13/Android 7.1 na mgbe e mesịrị)
- Mgbama netwọk ikuku 2.4GHz dị na ebe nrụnye
- Kwado ụdị nchekwa WEP/WPA/WPA2/WPA2 PSK(AES).
4.3. Akụkụ ngwaahịa
- Controller Size: 6.11inch*4.67inch*1.45inch / 155.2mm*118.5mm*36.9mm
- Ibu ngwaahịa: 224g / 7.9oz
5. Ihe osise
The INKBIRD IIC-400-WIFI controller features a clear layout for easy identification of components and wiring terminals.

5.1. Ikanam egosi ìhè
- Zone 1~4 indicator lights: Stays on when watering is in progress; Flashes when watering is paused; Flashes in turn when soaking is in progress. Flashes simultaneously when no schedules are running; All off when the controller shuts down.
- All indicator lights: Always on and the buzzer beeps once per second to indicate that the device time has been reset. Wi-Fi needs to be re-paired to calibrate the device time.
- Delay indicator light: Stays on when rain, freezing weather, or manual skips are detected; Schedules with these features enabled will be delayed.
- Wi-Fi indicator light: Flashes when in pairing mode; Stays on when connected and online.
5.2. bọtịnụ ọrụ
- bọtịnụ Wi-Fi: Pịa ma jide sekọnd 2 ka ịbanye ọnọdụ njikọ.
- Tụgharịa bọtịnụ: Used for settings adjustments.
- Start/Skip Button: Press and hold for 2 seconds to turn the controller on/off.
5.3. Wiring Terminals
The controller features clearly labeled terminals for various connections:
- C (Common): For common wires.
- M (Master Valve/Pump Start Relay): For master valve or pump start relay wires.
- 1, 2, 3, 4 (Zone Outputs): For individual zone wires.
- S (Rain Sensor): For rain sensor wires.
- 24VAC: For 24V AC power connections.
- PWR IN: ọdụ ụgbọ mmiri ntinye ike.
6. Nzọụkwụ Nwụnye
Before installation, ensure the device can connect to Wi-Fi without issues.
6.1. Step 1: Download the APP
Chọọ maka “INKBIRD” in your device's App Store (iOS) or Google Play (Android) to download and install the application. Create an account once the app is installed.
Alternatively, you can scan the QR code below to download the app:

6.2. Step 2: Connect to Wi-Fi
- Plug the device into a power socket. The LED light will fully illuminate for one second.
- After 5 seconds, the Wi-Fi indicator light will flash, indicating that the device has entered Wi-Fi connection state. If it does not flash, press and hold the Wi-Fi button for two seconds to reset the Wi-Fi connection.
- Open the INKBIRD app, click “+” in the top right corner, and follow the in-app instructions to complete the Wi-Fi connection. Note that this controller supports 2.4GHz Wi-Fi networks only.
- Once successfully connected, the Wi-Fi indicator on the controller will remain on.
6.3. Step 3: Remove Your Old Controller
- First, test your existing sprinkler system to ensure all sprinklers are working correctly.
- Label each wire from your old controller using the provided label stickers to avoid confusion during re-installation.
6.4. Step 4: Mark Screw Locations
- Ensure the distance between the new controller and the power socket is less than 6 feet (1.8 meters).
- Use the mounting template (if provided, or measure the controller) to mark the installation location on the wall.
- Drill holes at the marked locations using an electric drill.
- Insert the screw anchors into the drilled holes using a hammer.
6.5. Step 5: Install Your New Controller
- Secure the top screw, leaving enough space between the screw head and the wall for the controller to hang.
- Hang the new controller onto the top screw.
- Secure the controller with two additional screws at the bottom.

6.6. Step 6: Wire Connection
Insert the labeled wires into the appropriate terminals on the new controller.
- Common Wires (C): Insert common wires (usually labeled 'C') into any of the 'C' terminals.
- Master Valve / Pump Start Relay (M): If you have a master valve or pump start relay (wires usually labeled 'M' or 'Pump'), wire it into the 'M' terminal. Mara: The pump should never be wired directly to the controller; doing so will damage the controller and void your warranty.
- Zone Wires (1~4): Insert the wires corresponding to your landscape's zones into terminals 1 through 4.
- Rain Sensor (S) (Optional): If you are using a rain sensor (wires usually labeled 'S'), wire it into the 'S' and '24-' terminals. The '24-' terminal is equivalent to the 'C' terminal. Remember to enable the rain sensor in the app.
- Power-in (P): Insert the power connector upwards into the power jack, then plug the adapter into a power outlet. Mara: Do not turn on the power before all wires are securely connected. If any wire is damaged, cut off power to the controller and replace the damaged wire to avoid hazards.
7. Operation (Function Description)
The INKBIRD app provides comprehensive control over your sprinkler system.

7.1. Automatic/Manual Watering
- Ụdị akpaaka: Makes daily watering visible, efficient, and scientific.
- Ịgba mmiri n'aka: Allows you to provide extra water as needed. The default manual watering time on the device is 180 minutes.

7.2. Smart Irrigation Features
- Mmiri ozuzo: Intelligently skips watering schedules during rainy weather to prevent overwatering.
- Ndozi oge: Adjusts watering amounts for hot summers or cold winters with a single click.

7.3. Managing Watering Schedules and History
Ngwa na-enye gị ohere view upcoming watering plans and review past watering activities.

7.4. Power-off Memory Function
The controller has a built-in time chip that automatically runs the time without needing spare batteries. It supports non-volatile storage, saving all settings even if power is cut off. The timer will automatically resume once power is restored.
7.5. OTA Function
The device supports Over-The-Air (OTA) updates, ensuring lifetime satisfactory use with continuous improvements.
8. Ntuziaka nchọpụta nsogbu
If you encounter issues with Wi-Fi connection or irrigation facilities, refer to the table below for common problems and solutions. For further assistance, please contact support@inkbird.com.
| Okwu | Ihe kpatara na ngwọta nwere ike ime |
|---|---|
| Okwu Njikọ Wi-Fi |
|
| Okwu ngwaọrụ |
|
| Setting Issue (How to enter pairing mode/reset Wi-Fi?) | Press and hold the Wi-Fi button for 2 seconds; the Wi-Fi icon will flash. |
| Buzzer beeps once per second, and Zone 1-4 indicator lights are always on? | The clock chip's time has reset due to power disconnection for about 10 days. Reconnect the controller via Wi-Fi using the INKBIRD app to calibrate the clock time. |
9. Nlekọta
To ensure the longevity and optimal performance of your INKBIRD IIC-400-WIFI Smart Sprinkler Controller, follow these simple maintenance guidelines:
- Keep the controller clean and free from dust and debris. Use a soft, dry cloth for cleaning.
- Ensure the controller is installed in a dry location, as it is not waterproof.
- Na-elele njikọ waya niile mgbe niile iji hụ na ha dị nchebe ma ghara imebi emebi ma ọ bụ mebie.
- Regularly check for app updates to benefit from new features and performance improvements.
10. Ndụmọdụ onye ọrụ
Enweghị ndụmọdụ onye ọrụ akọwapụtara nke ọma sitere na reviewE nyere ajụjụ na azịza maka ngwaahịa a.
11. Akwụkwọ ikike na nkwado
11.1. Akwụkwọ ikike
This item carries a 2-year warranty against defects in components or workmanship. During this period, products found to be defective will be repaired or replaced without charge, at the discretion of INKBIRD.
11.2. Ọrụ ndị ahịa
For any problems or questions regarding the use of your INKBIRD IIC-400-WIFI Smart Sprinkler Controller, please feel free to contact us at support@inkbird.com. We are committed to providing the best possible assistance.
Enwere ike ibudata akwụkwọ ntuziaka onye ọrụ zuru ezu n'ụdị PDF: INKBIRD IIC-400-WIFI User Manual (PDF)
12. Ihe FCC chọrọ
Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
- Ngwaọrụ a nwere ike ọ gaghị ebute nnyonye anya na-emerụ ahụ.
- Ngwaọrụ a ga-anabatarịrị nnyonye anya ọ bụla enwetara, gụnyere nnyonye anya nwere ike ibute ọrụ na-achọghị.
Mara: A nwalere ngwa a wee hụ na ọ dabara na oke maka ngwaọrụ dijitalụ klaasị B, dabere na akụkụ 15 nke Iwu FCC. Emebere oke ndị a iji nye nchebe ezi uche dị na ya megide nnyonye anya na-emerụ emerụ na ntinye ụlọ. Akụrụngwa a na-ebute, na-eji, ma nwee ike ịgbasa ike ugboro redio, ma ọ bụrụ na etinyeghị ya ma jiri ya dịka ntuziaka ahụ siri dị, nwere ike ibute ndabichi na-emerụ ahụ na nkwukọrịta redio. Agbanyeghị, enweghị nkwa na nnyonye anya agaghị eme na otu nrụnye. Ọ bụrụ na akụrụngwa a na-ebute nnyonye anya na-emerụ ahụ na nnabata redio ma ọ bụ telivishọn, nke enwere ike ikpebi site na ịgbanyụ ma gbanye akụrụngwa, a na-agba onye ọrụ ume ka ọ nwaa idozi nnyonye anya site na otu ma ọ bụ karịa n'ime usoro ndị a:
- Megharịa ma ọ bụ bugharịa antenna nnata.
- Mee ka nkewa dị n'etiti akụrụngwa na nnata.
- Jikọọ akụrụngwa n'ime oghere na sekit dị iche na nke ejikọrọ onye nnata.
- Kpọtụrụ onye na-ere ahịa ma ọ bụ onye ọrụ redio/TV nwere ahụmahụ maka enyemaka.
Ngwa a na-akwado oke ikpughe radieshon FCC nke edobere maka gburugburu ebe anaghị achịkwa ya. Ekwesịrị ịwụnye akụrụngwa a ma rụọ ọrụ ya na opekempe 20cm n'etiti radiator & ahụ gị. Agaghị ejikọta ihe nnyefe a ma ọ bụ na-arụ ọrụ na njikọ antenna ma ọ bụ nnyefe ọ bụla ọzọ.





