Original
By certification 
Model Number: HM-712DS-AB0928
Brand Name: HEIMAN
Key Specifications/Special Features:
Main features:Wall installationSMT manufacture technology and good stabilityDetects CO and gasMalfunction auto-check indicator
MCU processing
High-reliability Figaro electrochemical sensor
220V AC and 9V backup battery power source
Patent number for appearance: 2010306115908.X
Test:
- Aging test for PCBA board 12 hours
- Sensitivity calibration
- Assembling into finished products
- Aging test for finished product 10 hours
- Sensitivity calibration of finished products in gas box
- Package and QC audit
| Working voltage range: | 100-240V AC |
| Temperature range: | -10 to 50°C |
| Humidity range: | 10-95% RH |
| Alarm levels: | natural gas: 0.25% (5% LEL), CO: 150ppm |
| Gas species: | CO and gas |
| Sensor: | semiconductor |
| Indicator information: | AC power: LED constant bright, green Alarm: LED flashing, red Sensor failure: LED constant bright, yellow |
| Rated power: | 2.5W |
| Alarm sound: | 75dB/1m Triple di-sound, pause, triple di-sound |
| Installation: | wall-mounted |
| Dimensions: | 118.5*82*43mm |
| Warranty: | 2 years |
Shipping Information:
- FOB Port: Shenzhen
- Lead Time: 1 - 15 days
Main Export Markets:
- Asia
- Central/South America
- Eastern Europe
- Mid East/Africa
- North America
- Western Europe
