BT400A WiFi / BT500B Zigbee SOS Emergency Call Button

One-Trigger Emergency Alert

• Instant SOS Activation – One press sends immediate alarm to family members via Tuya APP

• Multi-Person Notification – Alert multiple contacts simultaneously

• Remote Alerts – Receive notifications even when away from home

Ultra-Low Power Consumption

• Standby Current – ≤10μA for extended battery life

• Alarm Current – ≤15mA during activation

• Low Voltage Warning – Alert at ≤2.6V to remind charging

Rechargeable Battery

• Built-in Lithium Battery – 3V rechargeable, no battery replacement needed

• Long-Lasting – Optimized power management for months of use

Easy Installation & Portability

• Wiring-Free – No complex installation required

• Compact Size – 70×70×33mm, lightweight at 34g

• Portable Design – Can be carried, placed on desk, or mounted on wall

Wide Operating Environment

• Temperature Range – -10°C to +50°C

• Humidity Resistance – Up to 95% RH

Suitable for Multiple Scenarios

• Senior care / Elderly safety

• Medical alert for chronic conditions

• Pregnancy care

• Hospital / Nursing home

• Child safety

• Bed care for patients