Features:1) Operating voltage: DC 9-15V2) Alarm current: 10-22mA3) Working environment temperature: -10°C-50°C, relative humidity:4) Alarm density: coal gas 0.1-0.5%/natural gas 0.1-0.3%/liq

Product Name: Gas AlarmModel Number: HC-A10Place of Origin: ChinaFeatures:1) Operating voltage: DC 9-15V2) Alarm current: 10-22mA3) Working environment temperature: -10°C-50°C, relative humi

Features:1) Input power: 30W2) Impedance: 4 ohms, 8 ohms3) Color: white, ivory4) Dimensions (W x L x H): 200 x 235 x 118mm

Features:1) Input power: 10W, 20W2) Impedance: 4 ohms, 8 ohms3) Color: black, white, red, blue4) Dimensions (W x L x H): 130 x 120 x 132mm

Product Name: LoudspeakerModel Number: HC - H58Place of Origin: ChinaFeatures:1) Input power: 30W2) Impedance: 4 ohms, 8 ohms3) Color: white, ivory4) Dimensions (W x L x H): 200 x 235 x 118mm

Product Name: LoudspeakerModel Number: HC - H50Place of Origin: ChinaFeatures:1) Input power: 10W, 20W2) Impedance: 4 ohms, 8 ohms 3) Color: black, white, red, blue4) Dimensions (W x L x H): 130 x 120

Features:1) Operation voltage: DC 6 - 12V2) Sound type: single tone / 6-tone3) Colors: black / white4) Dimensions (W x L x H): 40 x 23 x 44mm

Specifications:1) Operation voltage: DC 6-12V or 24V2) Current draw: 130mA3) Sound type: HI-LO tone / single, 6-tone / melody4) Color: white5) Dimensions (W x L x H): 85 x 85 x 42mm

Features:1) Operation voltage: DC 6 - 12V2) Sound type: single tone / 6-tone3) Colors: black / white4) Dimensions (W x L x H): 40 x 23 x 44mm