PST-YG400A Tuya Smart WiFi Smoke Sensor - 2.4GHz, 20m² Coverage, AAA Battery
PST-YG400A Tuya Smart WiFi Smoke Sensor - 2.4GHz, 20m² Coverage, AAA Battery - Image 2
PST-YG400A Tuya Smart WiFi Smoke Sensor - 2.4GHz, 20m² Coverage, AAA Battery - Image 3
PST-YG400A Tuya Smart WiFi Smoke Sensor - 2.4GHz, 20m² Coverage, AAA Battery - Image 4
SKU: SENS-0798
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PST-YG400A Tuya Smart WiFi Smoke Sensor - 2.4GHz, 20m² Coverage, AAA Battery

₹1,049.00 (Inclusive of all taxes)
Out of Stock

The PST-YG400A is a smart WiFi smoke sensor designed for home safety, providing real-time alerts via the Tuya app and compatibility with Alexa and Google Home for voice control. It features a high-sensitivity detection element, audible/visual alarms, and covers an area up to 20m².

Features

  • High-sensitivity smoke detection triggers a loud 85dB alarm and flashing red LED.
  • Integrated 2.4GHz WiFi module enables real-time smartphone alerts via the Tuya Smart App.
  • Voice control compatible with Amazon Alexa and Google Assistant for hands-free operation.
  • Compact ABS housing (85mm x 85mm) for easy wall or ceiling mounting in residential spaces.
  • Features low battery detection and operates on 2x AAA 1.5V batteries for backup power.

Out of stock

Description

The PST-YG400A Smart WiFi Smoke Sensor utilizes an optical sensing chamber to detect smoke particles, triggering immediate local and remote alerts. Its integrated WiFi module connects directly to 2.4GHz networks without a separate gateway, enabling instant push notifications to the Tuya Smart App for remote monitoring and control from anywhere.

Designed for residential and light commercial use, the sensor operates within a -10°C to +50°C temperature range and features a stable internal structure for reliable performance. The device supports smart automation rules and can be linked with other Tuya ecosystem products for comprehensive safety scenarios, such as turning on lights or shutting off smart plugs upon alarm activation.

Key Features

  • Direct 2.4GHz WiFi connectivity (IEEE 802.11 b/g/n) eliminates the need for a separate hub or gateway.
  • High-sensitivity optical smoke detection provides fast response to smoldering and flaming fires.
  • Local alert combines an 85dB piezoelectric buzzer with a bright flashing red LED for immediate occupant notification.
  • Seamless integration with Amazon Alexa and Google Home enables voice-based status checks and scene control.
  • Tuya Smart App enables remote monitoring, real-time alerts, and family sharing of device access.
  • Smart automation engine allows creation of IFTTT-like rules based on time, sensor state, or other device triggers.
  • Low battery detection system sends app notifications to ensure continuous protection.
  • Compact, wall-mountable ABS housing offers a durable and discreet design suitable for any room.

Applications

  • Residential home safety monitoring in bedrooms, kitchens, and hallways.
  • Integration into smart home automation systems for triggered lighting or appliance shut-off.
  • Light commercial spaces such as small offices, retail shops, or rental properties requiring remote oversight.
  • Vacation home or cabin monitoring to receive fire alerts while the property is unoccupied.
  • Elderly or assisted living facilities where remote caregiver notification is essential.

Technical Specifications

Model NumberPST-YG400A
Product TypeSmart WiFi Smoke Sensor
Housing MaterialABS Plastic
Power Supply2x AAA 1.5V Batteries (Backup)
WiFi StandardIEEE 802.11 b/g/n (2.4GHz only)
Detection CoverageUp to 20 m²
Operating Temperature-10°C to +50°C
Alarm Output85dB Buzzer, Flashing Red LED
ConnectivityTuya Smart App, Alexa, Google Home
Dimensions (L x W)85 mm x 85 mm
Weight120 g

Frequently Asked Questions

Does the PST-YG400A smoke sensor require a separate hub or gateway to work?

No, the PST-YG400A has a built-in 2.4GHz WiFi module and connects directly to your home network without any additional hub. You only need the Tuya Smart App for setup and to receive remote alerts.

What type of batteries does it use, and how are low battery alerts handled?

The sensor is powered by 2 standard AAA 1.5V batteries (included). The device monitors battery voltage and will send a specific low-battery alert notification directly to your Tuya Smart App to ensure continuous protection.

Can I integrate this smoke sensor with voice assistants like Alexa or Google Home?

Yes, the PST-YG400A is fully compatible with both Amazon Alexa and Google Home. After linking your Tuya account with the respective voice assistant platform, you can use voice commands to check the sensor's status or incorporate it into routines.

What is the detection principle and coverage area of this sensor?

It uses an optical scattering principle to detect smoke particles within an enclosed sensing chamber. The effective monitoring area is up to 20 square meters in an open residential space, making it suitable for standard rooms and hallways.

How do I set up smart automation rules with this device?

Using the Tuya Smart App, you can create automation scenes. For example, you can set a rule so that when smoke is detected, all smart lights in the house turn on, or a smart plug controlling a fan turns off. The sensor can trigger actions based on its alarm state.

Package Includes

  • 1 x PST-YG400A Tuya Smart WiFi Smoke Sensor
  • 2 x AAA 1.5V Batteries
  • 1 x User Manual

Additional Information

Weight 0.12 kg
Dimensions 8.5 × 8.5 cm

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