201 natural gas alarms are state-of-the-art inflammable gas detectors with an internal sounder. Advanced electronics in conjunction with a semiconductor gas sensor provide early detection of natural gas, with high immunity against unwanted alarms.
Models are available powered by AC mains or from a DC 12/24 V supply (such as a security system).
Features:
· Detects natural gas (CH4)
· Advanced algorithms provide advanced detection discrimination
· Stable gas sensing chamber. No adjustment or replacement required
· High immunity against unwanted alarms
· Loud 85 dB internal alarm sounder
· Dual function action button temporarily silences unwanted alarms (Hush), and verifies alarm operation (Test)
· Separate indicators for Power, Alarm and Service
· N/C or N/O alarm relay output models available
· Interconnection function available on some models to connect up to 20 units together
· AC mains operating models available
· DC 12/24 V models available
· 5-year end-of-life timer alerts owner to replace the unit
· Low power consumption
· Attractive housing design
· Easy installation. No programming required
· Low maintenance
Specification:
| Part Number |
DC Power |
AC (110 ~ 230) V |
AC (100 ~ 240) V |
Interconnection |
Relay Output |
| 201-023 |
- |
√ |
- |
√ |
√ |
FAQ:
Q1:Are you a manufacturer or trading company?
A1:Numens is a professional fire alarm system manufacturer.
Q2:What kind of production service do you provide?
A2:The whole fire alarm system,include Addressable system, Conventional system, Residential system and so on....
Q3:What kind of certification do you have?
A3:Numens was EN,BSI,UL,SGS certified and all the products were produced under these major international standard .
Q4:What is the lead time for new order?
A4:The lead time for new order is 25 days after confirm order.
Q5:How do I get price information?
A5:Sales representatives are responsible for providing detailed price information within 1 workday after get your inquiry.
Audited Supplier 
){kind=link}