Availability
Mfr. part #: OH921
In stock: 300+ availableReady to ship today
Delivery across Canada in 2 to 4 business daysFree shipping on orders over $250 CAD
Buying for a project or in bulk?Request a volume quote
Genuine stockBrand new, factory sealed
1 year warrantyOn every product
30 day returnsSee our return policy
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Need help with this part?Call +1 909 235-5810 or email info@jemsystems.ca
Frequently bought together
The Siemens OH921 (S54320-F6-A2) is a Cerberus PRO addressable multi-criteria detector that combines a photoelectric smoke chamber and a thermistor in one plug-in head. An onboard neural network weighs both readings to tell real fire signatures apart from dust, steam and aerosols.
- Combined smoke and heat detection with Standard or Duct profiles, or heat-only operation, selected by the panel
- 135°F (57°C) fixed heat with 15°F per minute rate-of-rise
- 16 to 30 VDC; 250 µA standby, 410 µA alarm
- Built-in ISOtechnology line isolator
- Mounts on DB-11, DB-11E or DB2-HR bases (sold separately)
- UL 268 7th Edition, UL 521 heat, UL 268A for in-duct use
Related heads: OP921 photoelectric and HI921 heat detector.
| Brand | Siemens |
|---|---|
| Manufacturer part number | OH921 |
| Product type | Smoke Detectors |
| Shipping weight | 0.5 lb |
| Condition | Brand new, factory sealed |
| Warranty | 1 year |
| Currency | Canadian dollars (CAD) |
Need a manual, listing or cut sheet that is not here? Email info@jemsystems.ca with the part number.
- Delivery across Canada in 2 to 4 business days.
- Free shipping on orders over $250 CAD.
- Returns within 30 days of the invoice date for unused items in original packaging, with an RMA number. Restocking fees may apply. See our refund policy.
- 1 year warranty on all products.
- Questions about an order? Email customerservicegroup@jemsystems.ca or call +1 909 235-5810.