OWSOO Wireless Call ButtoneWeLink SOS/Emergency Button433MHz Caregiver Pagerfor Bed/Chair/Floor Mat Fall Alarm Patient Elderly Disabled Press for Help Caregiver/Nurse Alert System

Note: The SOS Emergency Button should work with the alarm system host or Sonoff RF Bridge 433. Specifications: Item Type: Wireless SOS Emergency Button Frequency: 433MHz Emission protocol: 1527 Power Supply: Button Battery (included) Work Current: 9-12MA Battery Working Time: 8-12 months Transmission Distance: 100m(Open space) Installation Way: Wall Mounted(with screws or sticker) Installation Height: 0.8m-1.2m (Suggested) Color: White+Red Material: ABS Operating temperature: -10°C to 50°C   Item Size: Approx. 46*46*16mm(L*W*H) Item Weight: Approx. 16g / 0.56oz Package Information: Package Size: Approach. 5 * 5 * 2cm / 2 * 2 * 0.79in Package Weight: Approach. 18g / 0.63oz Package List: 1 * SOS Emergency Button 1 * Sticker