SKU:BE1210-433
CO Alarm Transmitter
CO Alarm Transmitter
Detects dangerous levels of carbon monoxide before they become life-threatening and triggers receivers quickly and directly to help ensure timely response. An industry-certified emergency notification device.
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Description
Description
The Bellman & Symfon Carbon Monoxide Alarm Transmitter helps protect your home by providing early warnings when dangerous CO levels are detected. It works within the Visit Smart Home System and keeps you informed through sound, flashing lights, or vibrations, depending on the receivers you have in place.
When activated, the alarm sounds loudly, flashes its indicator LEDs, and sends a wireless signal to your Visit receivers so you can respond quickly, even from another room. It uses an advanced electrochemical sensor for accurate detection and meets UL2034 residential safety requirements.
The unit runs on two long-life AAA batteries and provides clear alerts for low battery, faults, and end-of-life status. A built-in hush feature lets you silence nuisance alarms when needed while still prioritizing safety.
This transmitter is especially helpful for individuals who may not hear a traditional CO alarm. By pairing with Visit receivers, it ensures you receive alerts in multiple ways, offering dependable protection throughout your home.
With reliable sensing, strong wireless communication, and an inclusive design, the Bellman & Symfon CO Alarm Transmitter supports a safer, more connected home environment.
In the Box
In the Box
● CO Alarm Transmitter
Detects CO leakage and signals receivers
● Mounting Equipment
Includes screws for installation
● Batteries
2xAAA Alkaline Batteries
Specifications
Specifications
● Trigger Threshold
Detects dangerous CO levels at 70 ppm and above
● Sensor Type
Electrochemical
● Alarm Volume
≥ 85 dB(A) at 10 ft
● Battery
2 × AAA alkaline (replaceable)
● Battery Life
Up to 5 years
● Radio Range
Up to 525 ft (line of sight)
● Size
4.7 × 4.1 × 1.6 in
● Weight
6.5 oz
● Product Lifetime
10 years
● Compliance
UL2034, FCC Part 15,
IC RSS-210, CSA Std. 6.19-01
Resources
Resources
Features
Reliable radio link
Covers up to 500 ft open field.
Broadcast feature
Relays the alarm to all receivers.
Silence function
To avoid nuisance alarms.
Long lasting power
Up to 5 years battery life.
CO Alarm Transmitter
- Status LEDs
- CO Sensor
- Radio button
- Alarm horn
- Test / Hush
- Batteries

Transmitters Detect Events
Visitors, sounds, mobile notifications, and emergencies. When something happens, the transmitter sends a wireless signal to your receivers.
Receivers Alert
Once signaled, the receiver notifies you with sound, lights, vibrations, or mobile alerts. Clear, accessible, wherever you are.
Customize Your System
Bellman is fully modular. Add the transmitters, receivers, and accessories that fit your needs, for both new systems and existing setups. Every system begins with at least one transmitter and one receiver.