1. Material: ABS
2. Voltage: 4.5V (3 * AA battery 1.5V not included)
3 alarm sound: 85 dB
4. Sensitivity and time: 100 ppm, alarm at 10 to 40 minutes .300 ppm, alarm at 3 minutes
5. Installation: Wall-mounted
6. Operating temperature: -10--50 (�)
Use:
1. Low battery warning function
2. LCD display
3. Test / Reset button
