1. Pengenalan
This manual provides detailed instructions for the operation and maintenance of your KETOTEK KT3300 Plug-in Humidity Controller. Please read this manual thoroughly before use to ensure proper functionality and safety. The KT3300 is designed to precisely control humidity levels for various applications, including grow boxes, incubators, terrariums, and storage areas.

Figure 1: KETOTEK KT3300 Plug-in Humidity Controller with external probe.
2. Ciri-ciri Utama
- Operasi mudah: Simply plug in your humidifier or dehumidifier and set the desired start and stop humidity levels.
- Julat Kawalan Kelembapan: 20% hingga 95% RH.
- Bekalan Kuasa: 100~250V AC 50/60Hz.
- Output: Max 16A/230V.
- Mod Pengendalian: Humidification or Dehumidification, determined by start and stop humidity settings.
- Fungsi Countdown: M2 HC+CD OFF (countdown to turn off) and M3 HC+CD ON (countdown to turn on) modes available, with a range of 0~99 hours and 59 minutes.
- Kuar Panjang: Includes a 3-meter humidity probe for flexible placement.
- Fungsi Tambahan: Humidity calibration, reset function, and power-off data saving to retain all settings.

Gambar 2: Lebihview of KETOTEK KT3300 features.
3. Komponen dan Paparan Produk
The KETOTEK KT3300 consists of the main control unit with a digital display, control buttons, a power outlet, and an external humidity probe.

Figure 3: KETOTEK KT3300 labeled components and display.
Elemen Paparan:
- Kelembapan yang Diukur: Displays the current humidity detected by the probe.
- Start Humidity: The humidity level at which the connected device will activate.
- Stop Humidity: The humidity level at which the connected device will deactivate.
- Penunjuk Output: Shows when the device is actively humidifying or dehumidifying.
Butang Kawalan:
- Butang M (Mod): Used to cycle through operating modes and save settings.
- + (Increment) Button: Meningkatkan nilai berangka semasa penetapan.
- Butang OK: Confirms selections and enters setting modes.
- - (Decrement) Button: Mengurangkan nilai berangka semasa penetapan.
- Return/Reset Button: Returns to the previous screen or initiates a reset.
4. Persediaan dan Operasi Asas
4.1 Persediaan Awal
- Plug the KETOTEK KT3300 into a standard EU power outlet (100~250V AC).
- Connect the humidity probe to the designated port on the controller.
- Place the humidity probe in the area where humidity needs to be monitored and controlled.
- Plug your humidifier or dehumidifier into the power outlet on the KT3300.
4.2 Setting Humidity Control (M1 HC Mode)
This mode allows you to set a specific humidity range for humidification or dehumidification.
- Tekan ke M button to enter M1 HC mode.
- Tekan ke OK butang untuk menetapkan Mulakan Kelembapan. Gunakan + or - butang untuk melaraskan nilai.
- Tekan ke OK button again to set the Hentikan Kelembapan. Gunakan + or - butang untuk melaraskan nilai.
- Tekan ke M butang untuk menyimpan tetapan anda.
Nota:
- If Start Humidity < Stop Humidity, the KT3300 operates in Mod Pelembapan. The device will turn on when humidity drops below the Start Humidity and turn off when it reaches the Stop Humidity.
- If Start Humidity > Stop Humidity, the KT3300 operates in Mod Dehumidifikasi. The device will turn on when humidity rises above the Start Humidity and turn off when it drops to the Stop Humidity.

Figure 4: Easy configuration steps for humidity control.
5. Advanced Operating Modes (Countdown Function)
The KT3300 offers countdown timer functions to activate or deactivate humidity control after a set period.

Figure 5: KETOTEK KT3300 operating modes.
5.1 M2 HC+CD OFF Mode (Countdown to Turn Off)
In this mode, humidity control operates normally, but it will automatically turn off after the set countdown period expires.
- Tekan ke M butang berulang kali sehingga M2 HC+CD OFF dipaparkan.
- Tekan OK to set the countdown time (hours and minutes). Use + or - untuk menyesuaikan diri.
- Tekan OK untuk menetapkan Mulakan Kelembapan dan Hentikan Kelembapan seperti yang diterangkan dalam Bahagian 4.2.
- Tekan M to save settings and start the countdown.
5.2 M3 HC+CD ON Mode (Countdown to Turn On)
In this mode, humidity control will remain off until the set countdown period expires, after which it will activate and operate according to the set humidity range.
- Tekan ke M butang berulang kali sehingga M3 HC+CD ON dipaparkan.
- Tekan OK to set the countdown time (hours and minutes). Use + or - untuk menyesuaikan diri.
- Tekan OK untuk menetapkan Mulakan Kelembapan dan Hentikan Kelembapan seperti yang diterangkan dalam Bahagian 4.2.
- Tekan M to save settings and start the countdown.
6. Fungsi Tambahan
6.1 Penentukuran Kelembapan
If you suspect the humidity readings are inaccurate, you can calibrate the device:
- Dengan peranti dihidupkan, tekan dan tahan OK button for 3 seconds to enter the parameter settings.
- Gunakan M button to navigate to the humidity calibration parameter (usually indicated by a specific code in the manual, e.g., 'HC').
- Gunakan + or - buttons to adjust the calibration value. A positive value increases the displayed humidity, a negative value decreases it.
- Tekan M untuk menyimpan dan keluar.
6.2 Tetapkan Semula Fungsi
Untuk memulihkan peranti kepada tetapan lalai kilangnya:
- Dengan peranti dihidupkan, tekan dan tahan Return/Reset butang selama 3 saat.
- The display will show a confirmation message or reset directly.
6.3 Power-off Data Saving
The KT3300 automatically saves all your settings in case of a power outage, ensuring that your preferred humidity control parameters are retained when power is restored.
7. Aplikasi
The KETOTEK KT3300 Plug-in Humidity Controller is versatile and suitable for a wide range of applications requiring precise humidity management:
- Home brewing and fermentation
- Greenhouses and plant cultivation
- Terrariums for reptiles and amphibian
- Incubators for eggs
- Meat curing and food preservation
- Mushroom cultivation
- Tumbuh khemah
- General household humidity control

Figure 6: Diverse applications of the humidity controller.
8. Spesifikasi
| Ciri | Spesifikasi |
|---|---|
| Model | KT3300 EU |
| Julat Kawalan Kelembapan | 20% ~ 95% RH |
| Bekalan Kuasa | 100~250V AC 50/60Hz |
| Keluaran | Maks 16A/230V |
| Panjang Probe | 3 meter |
| Dimensi Pakej | 13.5 x 8.4 x 6.4 cm |
| Berat badan | 260 gram |
| Pengeluar | KETOTEK |
| Negara Asal | China |
9. Apa yang ada di dalam Kotak
- 1 x KETOTEK KT3300 Plug-in Humidity Controller
- 1 x Manual Pengguna
10. Penyelesaian masalah
This section addresses common issues you might encounter with your KETOTEK KT3300.
| Error Code/Symptom | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| H1 dipaparkan | Humidity sensor disconnected or measured humidity is below 20% RH. | Check the sensor connection. Ensure the sensor is properly plugged in. If the environment is genuinely below 20% RH, this is an informational display. |
| H2 dipaparkan | Humidity sensor short-circuited or measured humidity is above 95% RH. | Check the sensor for damage or short circuits. If the environment is genuinely above 95% RH, this is an informational display. |
| Device not responding to humidity changes | Incorrect start/stop humidity settings, device in countdown mode, or connected appliance is faulty. | Verify your Start and Stop Humidity settings. Check if the device is in M2 or M3 countdown mode. Ensure the connected humidifier/dehumidifier is working correctly. |
11. Waranti dan Sokongan
KETOTEK products are designed for reliability and performance. For warranty information, technical support, or service inquiries, please refer to the contact details provided with your purchase or visit the official KETOTEK webtapak. Sila simpan bukti pembelian anda untuk tuntutan waranti.





