Heiman Carbon Monoxide Alarm HM-733ESY Series
|
Model |
HM-733ESY |
HM-733ESY |
HM-733ESY-W |
|
Power Supply |
DC 2 × 1.5V Alkaline AA LR6 Batteries (PAIRDEER / NANFU) |
DC 2 × 1.5V Alkaline AA LR6 Batteries (PAIRDEER / NANFU) |
DC 2 × 1.5V Alkaline AA LR6 Batteries (PAIRDEER / NANFU) |
|
Apparatus Lifespan |
Max.10 years |
Max.10 years |
Max.10 years |
|
Battery Life |
1 year |
5 years |
5 years |
|
Frequency |
/ |
/ |
868.3 MHz ± 20 kHz |
|
Operating Conditions |
10°C ～ +40°C,0–95% RH (Non-condensing) |
10°C ～ +40°C,0–95% RH (Non-condensing) |
10°C ～ +40°C,0–95% RH (Non-condensing) |
|
Standard& Transportation Conditions |
-20°C ～ +50°C,L450–70% RH (Non-condensing) |
-20°C ～ +50°C,L450–70% RH (Non-condensing) |
-20°C ～ +50°C,L450–70% RH (Non-condensing) |
|
Sound Level |
≥85 dB (at 3 m) |
≥85 dB (at 3 m) |
≥85 dB (at 3 m) |
|
Alarm Output |
Visual Indication: Red LEDAudible Indication:≥85 dB (at 3 m) |
Visual Indication: Red LEDAudible Indication:≥85 dB (at 3 m) |
Visual Indication: Red LEDAudible Indication:≥85 dB (at 3 m) |
|
Mounting Method |
Wall Mounting |
Wall Mounting |
Wall Mounting |
|
Certification |
UL 2034:2024 Ed.5 |
CE、UKCA、BSI |
CE、UKCA、BSI |
|
Model |
HM-733ESY-T |
HM-733ESY-WT |
|
Power Supply |
DC 3V (1 × CR123A Lithium Battery) |
DC 3V (1 × CR123A Lithium Battery) |
|
Apparatus Lifespan |
Max. 10 years |
Max. 10 years |
|
Battery Life |
10 years (Battery Not Replaceable) |
10 years (Battery Not Replaceable) |
|
Wireless Protocol |
/ |
Proprietary Low-Power Wireless Protocol (Sub-1G FSK) |
|
Frequency |
/ |
868 MHz |
|
Wireless Range |
/ |
Up ～ 200 m (656 ft) ～ Gateway (Open Area) |
|
Max. RF Output Power |
/ |
≤13 dB/m (EIRP) |
|
Sound Level |
≥85 dB (at 3 m) |
≥85 dB (at 3 m) |
|
Alarm Output |
Visual and Audible Indication |
Visual and Audible Indication |
|
Operating Conditions |
-10°C ～ +40°C (14°F ～ 104°F), 0–95% RH (Non-condensing) |
-10°C ～ +40°C (14°F ～ 104°F), 0–95% RH (Non-condensing) |
|
Standard& Transportation Conditions |
-20°C ～ +50°C (-4°F ～ 122°F), 0–70% RH (Non-condensing) |
-20°C ～ +50°C (-4°F ～ 122°F), 0–70% RH (Non-condensing) |
|
Mounting Method |
Wall Mounting |
Wall Mounting |
|
Dimensions |
104 × 73.5 × 33.7 mm |
104 × 73.5 × 33.7 mm |
|
Certification |
UL 2034:2024 Ed.5 |
CE、UKCA、BSI |
-
Eliminate the "invisible killer": Our 24/7 carbon monoxide monitoring solution
Carbon monoxide (CO) is the "silent killer"—invisible, odourless, and deadly. Our Heiman CO Alarm is a premium 24/7 monitoring solution that goes beyond basic protection: blending cutting-edge technology with intuitive design, it safeguards your home against harmful CO leaks, with flexible placement thanks to battery power and no wiring. It is also a carbon monoxide detector designed for maximum safety. -
Electrochemical Sensor: Precise CO Detection – Sleep Safe
Our Heiman CO Alarm features a high-sensitivity electrochemical CO sensor for precise detection – the gold standard for CO detection. Engineered to respond exclusively to carbon monoxide, it triggers a precise alarm at levels as low as 50ppm with low power consumption, delivering zero sensor drift and no false alerts. As a indoor CO alarm, it detects hidden CO buildup even while you sleep, shielding you from the silent killer. -
Automatic Fault Detection: Distinct Alerts + Flexible Muting – Simplified Fault Resolution
It continuously monitors sensor and circuit status. In the event of a sensor failure or short circuit, the device immediately triggers clear, distinctive alerts: the yellow LED flashes twice every 60 seconds, and the buzzer emits two beeps simultaneously—providing an unmistakable fault indication to prevent hidden risks from being overlooked. -
Real-Time LCD Display: Clear CO Monitoring, Maximum Safety
Our Heiman CO Alarm features a crisp LCD display that provides real-time visibility into CO concentrations (in PPM), eliminating guesswork and enabling early hazard detection before an alarm sounds. Under normal conditions, the screen displays "0 PPM" to confirm a safe environment. Even minor CO increases (30 PPM or above)—such as those caused by poor kitchen ventilation or faulty heating—are detected early, allowing you to take proactive safety measures.
FAQ
Q: Is HM-733ESY Series CO alarm UL 2034 certified?
A: Yes. It conforms to UL 2034:2024 Ed.5 and is certified to CSA 6.19:2017 Ed.2+U1, with FCC, CE, UKCA and BSI approvals — meeting US, Canadian, UK and European safety requirements. You can verify the certifications yourself on Intertek's official database: https://ramuk.intertekconnect.com/WebClients/ITS/DLP/products.nsf/$$Search?OpenForm
Q: Does it show CO levels or only beep?
A: The LCD displays real-time CO concentration in ppm, with an early warning above 30 ppm and an alarm memory feature.
Q: How loud is the alarm?
A: The alarm sounds at ≥85 dB at 10 feet with a repeating 4-beep pattern, designed to wake sleeping occupants.
Q: Where should I install a CO alarm in my home?
A: NFPA recommends installing one on every floor, in or near every sleeping area and bedroom, plus the basement ceiling near the stairs. Wall-mounted units should sit 4–12 inches (10–30 cm) below the ceiling.
Q: Does the HM-733ESY Series function as a smoke alarm or detect other gases?
A: No. It is a dedicated carbon monoxide alarm designed to detect CO from any source of combustion. It does not detect smoke, fire, or natural gas — pair it with a smoke alarm for complete home protection.
Q: What should I do when the CO alarm sounds?
A: Immediately move everyone to fresh air — outdoors or by an open door or window — and call emergency services (911 in the US, 112 in EU). Do not re-enter until responders arrive, the home is aired out, and the alarm returns to normal.
Q: How does the Low Power Consumption feature benefit long-term use of the Heiman CO Alarm?
A: The HM-733ESY series is built with advanced Low Power Consumption architecture and an energy-efficient sensor module, significantly reducing power usage during 24/7 standby monitoring. This extends overall battery life, reduces the frequency of battery replacements, and ensures cost-effective, sustainable, and reliable protection for your home without frequent maintenance.
Q: Does the HM-733ESY Series support smart home integration like Apple Home or Google Home?
A: The standard HM-733ESY model focuses on high-precision standalone 24/7 monitoring with a real-time LCD display. If you require smart home connectivity. Heiman also offers smart carbon monoxide detector models compatible with Matter and Zigbee 3.0 smart-home ecosystems, and compatible devices can integrate with Apple Home and Google Home through Matter. Heiman Matter alarms have obtained Matter certification, and relevant products are Thread-accredited and Bluetooth BQB certified. Smart versions can send mobile notifications when carbon monoxide is detected, alongside the local alarm sound. Whether you're asleep, at work, or away—we've got your home protected 24/7.
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