SPECIFICATIONS

Working Temperature: -10℃ ~ 60℃

Working Frequency: 433.92 MHz

Wireless Transmission Range: 280m/ 918ft in open space

Volume: 113 ~ 25dB (Loud/ High/ Middle/ Low)

Storage Temperature: -20℃ ~ 70℃

Operating Humidity: <80%

Model Number: KS-SF20R

Mode: Welcome/ Doorbell/ Alarm/ Flash Light/ Night Light

Color: White

Certification: CE

Certification: CE,CCC,CQC

Battery Lifespan: 5-7 months (based on 30 times per day)