Motion sensor Gosund S4 WiFi, Tuya-compatible smart motion detector S4

Smart motion sensor Gosund S4 is a Wi‑Fi motion detector compatible with Tuya-based smart home platforms. Designed to detect movement and trigger automations, the device connects directly to a 2.4 GHz Wi‑Fi network without a separate hub and sends instant notifications to your phone when motion is detected. The compact ABS housing, simple installation options and dual power modes make the sensor suitable for home security and lighting automation.

Advantages

The Gosund S4 provides reliable motion detection with a 128° detection angle and a range of up to 8 meters. It supports both micro‑USB (5 V, 1 A) power and two AA batteries for flexible installation, and consumes very little power in standby (≤ 81 μA). The sensor integrates with Tuya-compatible devices to trigger lights, cameras or alarms and offers easy wall mounting using screws or included 3M tape.

Suitable for

• Home security — intrusion detection and push notifications
• Lighting automation — automatic switching of lights when motion is detected
• Integration with cameras and alarms for automated scenes
• Temporary or permanent installation where USB or battery power is required

Key specifications

• Brand: Gosund
• Model: S4
• Power supply: 2× AA batteries or micro‑USB DC 5 V, 1 A
• Standby current: ≤ 81 μA
• Alarm current: ≤ 110 mA
• Detection angle: 128°
• Detection range: up to 8 m
• Wi‑Fi: 2.4 GHz IEEE 802.11 b/g/n
• Operating temperature: 0°C to 50°C
• Operating humidity: 10%–85% RH
• Storage temperature: 0°C to 70°C
• Storage humidity: 5%–95% RH
• Material: ABS
• Dimensions: 70 × 45 × 35.6 mm
• Weight: 100 g (including batteries)

How to use

Place the Gosund S4 sensor where it has a clear view of the monitored area, ideally at a height and angle that covers expected movement within an 8‑metre range. Power the device using the included micro‑USB cable or insert two AA batteries. Add the sensor to your Tuya-compatible app or Gosund app via 2.4 GHz Wi‑Fi and follow the in‑app pairing instructions to enable notifications and automations. Use the included screws or 3M tape for wall mounting; no additional tools are required for the tape option.

Usage recommendations

For reliable performance, avoid mounting the sensor directly opposite strong heat sources (radiators, air vents) or in areas with direct sunlight. Use micro‑USB power for permanent installations to reduce battery replacements; choose batteries for locations without a nearby USB power source.