Model Number: TSS380D-HR
Power Supply: DC 3V built-in lithium battery
Quiescent Current: ≤8uA
Alarm Current: ≤28mA
Comply With Standard: EN 14604:2005/AC:2008
Alarm Volume: ＞85dB(A)@3 meters
Product Life Time: ＞10 years 
Battery Life Time: ＞10 years
Wireless Frequency: 433MHz
Wireless Interconnection: Up to 40pcs
Humidity Range: ＜93% relative humidity（RH)
Temperature Range: 0℃ to 40℃
Plastic Material: V0 level flame retardant ABS
Product Size: 120mm in diameter × 38mm depth