Description

Features:
- Color: Grey
- Detection Range: 10m @25℃
- RF Distance: 120m
- RF Frequency: 433.92MHz
- Working Voltage: 3V DC (2 * Alkaline Battery)
- Working Temperature: -20~+50℃
- Working humidity: ≤85%RH
- Install Height Recommended: 2.2 ~ 2.7m