Condition: New
Siemens (Pyro) OH121
Siemens (Pyro) OH121
Detector Combo PE/Heat Conv
Regular price
$83.99
Sale price
$83.99
Regular price
Shipping calculated at checkout.
Only 2 left!
Siemens OH121 Conventional Photo/Thermal Smoke Detector
Key Features
- Multi-sensor detection combining photoelectric and thermal (heat) sensing
- Photoelectric sensor for smoke detection
- Thermal sensor with 135°F alarm threshold
- Magnet-test feature for quick and convenient testing without heat gun
- Auto-sensitivity feature with internal self-monitoring circuitry
- Unique three-color LED indicator for status display
- Dynamic verification of sensitivity and maintenance requirements
- Optimized for office, healthcare, educational, and light industrial facilities
Technical Specifications
- Detection Type: Photoelectric and thermal (combination)
- Thermal Temperature Alarm: 135°F
- Operating Temperature: 32-100°F
- Air Velocity Rating: 0-4000 fpm
- Power Supply: 16-27 VDC
- LED Indicator: Three-color status display (power, alarm, maintenance)
- Testing: Magnet-test capable without external heat source
Certifications
- UL Listed multi-sensor smoke detector
- Siemens conventional system compatible
- NFPA 72 compliant
Recently Viewed
Why Protegis?
Thousands of Parts
We source our legacy parts from multiple sources, to make sure you can keep your system running.
Protegis Guarantee
Reconditioned parts are backed by our one year, no-hassle warranty with free replacement or repair.
Multiple Brands
You can search from our extensive list of manufacturers to find the right part for your system.
