XIAOMI SJWS02LM

Xiaomi Water Leak Sensor 2 User Manual

Model: SJWS02LM

1. Produk Lebihview

The Xiaomi Water Leak Sensor 2 is a smart water immersion detector designed to provide early warning of water leaks and flooding. It features Bluetooth 5.2 connectivity, allowing it to integrate with the Mi Home APP for remote monitoring, sound and light alarms, and smart device linkage. Its IP67 dustproof and waterproof rating ensures reliable operation in various environments.

Xiaomi Water Leak Sensor 2, Chinese Version, with Mi Home APP integration icons
Figure 1: Xiaomi Water Leak Sensor 2 (Chinese Version) with Mi Home APP integration.
Diagram showing water immersion protection and water spray protection for the sensor
Figure 2: Multi-scenario water leakage detection, including immersion and spray protection.
Image of the sensor being splashed with water, illustrating its IP67 rating
Figure 3: The sensor's IP67 dustproof and waterproof capability.

2. Spesifikasi

CiriPenerangan
Model ProdukSJWSO2LM
ID CMIIT25J44B33A046
Sambungan Tanpa WayarBluetooth 5.2
Spesifikasi BateriCR2450
Suhu Bekerja0 ℃ ~ 55 ℃
Saiz ProdukΦ 55 x 19.5mm
Tahap PerlindunganIP67 (kalis habuk dan kalis air)
Standard PelaksanaanGB 4943.1-2022
Sumber KuasaBattery (Other)
Bateri Termasukya
Penyesuai Peti MasukTidak
Dewan Undangan NegeriSedia-untuk-Pergi
asal usulTanah Besar China
Product parameters table with model, connectivity, battery, size, and protection level
Rajah 4: Parameter produk terperinci.

2.1 Ciri-ciri Utama

  • Multi-scenario Water Leakage Detection: Double protection against water immersion and splashing.
  • IP67 Kalis Habuk dan Kalis Air: Fearless of dusty and humid environments.
  • Pelbagai Kaedah Penggera: Sound and light alarm, Mi Home APP smart alerts, and smart device alerts.
  • Pengesanan Awal: 0.5mm probe height from the ground for prompt alerts.
  • Hayat Bateri yang Panjang: Approximately 3 years with a CR2450 button battery.
  • Pautan Pintar: Supports Xiaomi Pulse Smart Link for connectivity with a wide range of smart home devices.
  • Reka bentuk tahan lasak: Unibody design, corrosion-resistant metal probe with nickel plating, and UV-resistant material.
Comparison chart between Xiaomi Water Leak Detector 1 and 2, highlighting upgrades in detection, battery life, and alarm settings
Figure 5: Comparison of Xiaomi Water Leak Detector 1 and 2 features.

3. Persediaan dan Pemasangan

3.1 Important Note on Version Compatibility

The Xiaomi Water Leak Sensor 2 is a Chinese version. When connecting to the Mi Home APP, you must change the region setting to "Chinese Mainland" within the app. It is NOT compatible with the Global Version of the Mi Home APP if the region is set to other countries.

3.2 Mi Home APP Region Change

To ensure proper functionality with the Mi Home APP:

  1. Open the Mi Home APP.
  2. Ketik "Profile" at the bottom right.
  3. Tap "Additional settings".
  4. Tap "Region".
  5. Select "Chinese mainland".
Screenshot showing steps to change Mi Home APP region to Chinese mainland
Figure 6: Steps to change the Mi Home APP region.

3.3 Device Pairing and Configuration

The sensor is 'Ready-to-Go' out of the box. For smart features, it requires a Bluetooth Mesh gateway.

  1. Ensure your Mi Home APP region is set to "Chinese mainland" as described above.
  2. Open the Mi Home APP and log in to your account.
  3. Tap the "+" icon in the upper right corner of the app's homepage.
  4. Select "Add device" and choose "Xiaomi Water Leak Detector 2" from the list.
  5. Ikut arahan pada skrin dalam apl untuk melengkapkan proses berpasangan.

Nota: Devices with built-in Bluetooth mesh gateway functionality include Xiaomi smart home panel, Xiaomi central gateway, Xiaomi smart screen Max, Pro/8, and Xiaomi Smart Home Screen 10, Xiaomi Smart Home Screen Mini, Xiaomi TV, and Redmi TV. You can view your Bluetooth Mesh gateway devices in the Mi Home app by navigating to My -> Central and Gateway -> Upper Right Corner -> clicking on the blue text "Bluetooth Mesh Gateway Devices".

3.4 Penempatan

Place the sensor in areas prone to water leaks. The 0.5mm probe height ensures early detection. Recommended locations include:

  • Under the kitchen sink
  • Next to washing machines or dishwashers
  • Near window sills prone to water ingress
  • Lantai bilik air
  • Near water inlets/outlets of sweepers or other appliances
Diagram showing recommended placement locations for the water leak sensor in a home
Figure 7: Recommended placement for comprehensive home water protection.

4. Arahan Operasi

The Xiaomi Water Leak Sensor 2 operates by detecting water immersion or splashing on its surface. When water reaches the probes, it triggers an alarm.

4.1 Kaedah Penggera

  • Bunyi dan Penggera Cahaya: The device features a built-in buzzer and an indicator light that activates upon detecting water. This helps in quickly locating the device and the source of the leak. Local alarms can also be triggered offline.
  • Mi Home APP Smart Alerts: When connected to a Bluetooth Mesh gateway and the Mi Home APP, the sensor will send real-time alerts to your smartphone, allowing for remote monitoring and control of risk dynamics.
  • Smart Device Alerts: The sensor can be linked with other Xiaomi smart devices (e.g., smart wall sockets, gateways) to trigger automated actions, such as cutting off power to appliances in case of a leak.
Diagram illustrating multiple alarm methods: sound and light, Mi Home app alerts, and smart device alerts
Gambar 8: Lebihview of the sensor's multiple alarm methods.

4.2 Smart Linkage with Xiaomi Devices

The sensor supports Xiaomi's surge chip for seamless connectivity with a wide range of smart home devices. You can customize your own personalized smart home automation scenarios through the Mi Home APP. For example, if a leak is detected near a washing machine, a smart wall socket connected to the washing machine can automatically cut off its power supply.

Diagram showing the sensor linked with a smart wall socket and gateway to cut off power to a washing machine upon leak detection
Gambar 9: Cthample of smart linkage with other Xiaomi devices.

5. Penyelenggaraan

5.1 Penggantian Bateri

The sensor uses a CR2450 button battery, which provides an estimated 3-year battery life under normal usage (device reporting information every 15 minutes, experiencing two water splashes or submersion alarms per month). Battery life may vary depending on actual usage conditions.

Untuk menggantikan bateri:

  1. Twist the rear battery cover counter-clockwise to open it.
  2. Remove the old battery and place the new CR2450 battery into the compartment, ensuring correct polarity.
  3. Align the battery cover with the sensor body and twist clockwise to tighten it until secure.
Diagram showing steps to replace the CR2450 battery in the Xiaomi Water Leak Sensor 2
Figure 10: Battery replacement instructions.

5.2 Pembersihan

Wipe the sensor with a soft, dry cloth. Do not use abrasive cleaners or immerse the entire device in water (though it is IP67 rated, prolonged submersion is not recommended for cleaning).

6. Penyelesaian masalah dan Soalan Lazim

6.1 Soalan Lazim

Q: What is the difference between water spray alarm and maximum alarm?
A: The water spray alarm is triggered when water covers the top two probes and completes the circuit. The maximum alarm is triggered when water reaches 0.5mm, indicating a more significant immersion.
Q: How do I set a continuous sound and light alarm when water is detected?
A: This setting can be configured within the Mi Home APP under the device's settings.
Q: Does the sensor need to be connected to a gateway?
A: For Mi Home APP alerts and smart device linkage, a Bluetooth Mesh gateway is required. However, the sensor can still trigger local sound and light alarms even when offline or not connected to a gateway.
Q: What smart devices can be linked with the sensor?
A: The sensor supports linkage with various Xiaomi smart devices that have Bluetooth Mesh gateway functionality, including Xiaomi Smart Home Panel, Xiaomi Central Gateway, Xiaomi Smart Screen Max, Xiaomi Smart Home Screen Pro/8, Xiaomi Smart Home Screen 10, Xiaomi Smart Home Screen Mini, Xiaomi TV, and Redmi TV.
Q: Can the sensor trigger alarms when offline?
A: Yes, the sensor can trigger local sound and light alarms even when offline.
Q: What is the probe height?
A: The probe height from the ground is 0.5mm, allowing for early detection of water.

7. Petua Pengguna

  • Region Setting is Crucial: Always ensure your Mi Home APP is set to "Chinese mainland" for this Chinese version of the sensor to function correctly.
  • Gateway for Smart Features: While the sensor provides local alarms independently, a Bluetooth Mesh gateway is essential for receiving remote notifications and enabling smart home automation.
  • Penempatan Strategik: Place the sensor in low-lying areas where water is most likely to accumulate first during a leak.
  • Pemeriksaan biasa: Periodically check the sensor's battery status via the Mi Home APP to ensure continuous protection.

8. Waranti dan Sokongan

Untuk maklumat jaminan dan sokongan teknikal, sila rujuk laman web rasmi Xiaomi. website or contact Xiaomi customer service. Support is also available through the Mi Home APP's help section.

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