Introduction
Thank you for choosing the HEIMAN S1-S Photoelectric Smoke Detector. This device is designed to provide early warning of smoke and fire, helping to protect your home and family. Featuring advanced dual-beam photoelectric sensing technology and a 10-year battery, this compact and stylish smoke alarm meets UL 217 10th Edition safety standards. Please read this manual thoroughly before installation and use to ensure proper operation and safety.
Important Safety Information
- WARNING: This smoke alarm is designed for residential use only. It is not intended for industrial or commercial applications.
- WARNING: This device is UL 217 10th Ed. Certified, but it is not UL Listed or officially UL certified, and may not qualify for local building inspections. Always check local codes and regulations.
- DO NOT PAINT the smoke alarm. Paint can clog the sensing chambers and prevent the alarm from operating correctly.
- Test the smoke alarm weekly by pressing the Test/Silence button.
- Replace the smoke alarm unit 10 years after installation.
- Do not attempt to repair this device. Refer all servicing to qualified personnel.
- Ensure proper placement as recommended in this manual to maximize effectiveness.
Package Contents
The HEIMAN S1-S Photoelectric Smoke Detector package includes:
- Smoke Alarm Unit(s) (e.g., 3-pack)
- Magnetic Adhesive Pads (for each unit)
- Mounting Bracket (for each unit)
- 10-Year Lithium Battery (pre-installed or included for each unit)
- Screws and Anchor Plugs (for each unit)
- User Manual
- Disassembly Pin

Product Features
- UL 217 10th Ed. Certified: Meets the latest safety standards for smoke alarms.
- Advanced Dual-Beam Photoelectric Detection: Precisely identifies smoke particle size and density, minimizing false alarms from steam or cooking while providing high sensitivity to smoldering fires.
- 10-Year Battery Life: Powered by a long-lasting lithium battery, ensuring reliable protection without frequent battery changes.
- Easy Installation: Can be mounted quickly with included screws or magnetic adhesive pads.
- One-Touch Control: Features a dedicated Test/Silence button for easy testing and silencing of nuisance alarms (10 minutes) or low-battery beeps (up to 12 hours).
- Loud Audible Alarm: Emits an 85 dB buzzer (at 10 ft) for clear alerts.
- Compact and Discreet Design: Small form factor (2.76"D x 1.46"H) blends seamlessly into any room or RV.
- Flame-Retardant Housing: Constructed from UL94 V-0 rated ABS+PC material for enhanced durability and fire resistance.

Setup and Installation
Follow these steps to install your HEIMAN S1-S Smoke Detector:
- Activate Battery: If the battery is not pre-activated, remove the yellow tab from the battery compartment to activate the 10-year lithium battery. Ensure the battery is properly seated.
- Choose Mounting Method: You have two options for mounting: screws or magnetic adhesive pads.
- Using Screws:
- Select a suitable location (see Recommended Placement below).
- Use the mounting bracket as a template to mark two drill holes on the ceiling or wall.
- Drill holes and insert the anchor plugs.
- Attach the mounting bracket using the provided screws.
- Align the smoke alarm with the mounting bracket and twist clockwise to secure it.
- Using Magnetic Adhesive Pads:
- Ensure the mounting surface is clean, dry, and smooth.
- Peel the protective film from one side of the magnetic adhesive pad and attach it to the back of the smoke alarm.
- Peel the protective film from the other side of the magnetic adhesive pad.
- Firmly press the smoke alarm onto the desired surface for at least 30 seconds.
- Test the Alarm: After installation, press and hold the Test/Silence button for a few seconds until the alarm sounds. This confirms the unit is functioning correctly.

Recommended Placement
For optimal protection, install at least one smoke alarm on every level of your home, including finished attics and basements. Place alarms inside every sleeping area and in the hallway outside each sleeping area. For kitchens, garages, and other areas prone to nuisance alarms, consider placing the alarm further away from potential sources of smoke or steam.

Operation
Testing the Smoke Alarm
Regular testing ensures your smoke alarm is functioning correctly. Press and hold the Test/Silence button located on the front of the alarm for a few seconds. The alarm will sound a loud siren, and the LED indicator will flash. Release the button once the alarm sounds. If the alarm does not sound, refer to the Troubleshooting section.

Silencing Nuisance Alarms
If a non-emergency event (e.g., cooking smoke, steam) triggers the alarm, you can temporarily silence it. Press the Test/Silence button once. The alarm will enter a 10-minute silence mode. The LED indicator will flash every few seconds to indicate it is in silence mode. After 10 minutes, the alarm will automatically reset to normal operation.
Low Battery Warning
When the 10-year battery is nearing the end of its life, the smoke alarm will chirp periodically (e.g., every 30-60 seconds) and the LED will flash. You can silence the low-battery chirp for up to 12 hours by pressing the Test/Silence button. This feature can be used multiple times, but it is recommended to replace the entire smoke alarm unit as soon as possible when the low battery warning occurs.
Video: Official product video demonstrating the features and operation of the Heiman Smoke Detector, including its UL 217 certification and dual-beam photoelectric sensor.
Maintenance
Cleaning Your Smoke Alarm
To keep your smoke alarm in good working condition, clean it regularly (at least once a month). Use a soft, damp cloth to wipe the exterior of the alarm. Do not use cleaning solvents or detergents. Avoid spraying air fresheners, hairspray, or other aerosols near the alarm as they may cause false alarms or damage the sensor.
Battery Replacement
The HEIMAN S1-S smoke alarm is equipped with a 10-year sealed lithium battery. This battery is designed to last the entire lifespan of the alarm (10 years). When the low battery warning sounds, the entire unit should be replaced. Do not attempt to replace the internal battery yourself, as this may void the warranty and compromise the device's safety features.

Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Alarm chirps periodically (e.g., every 30-60 seconds). | Low battery warning. | Press the Test/Silence button to temporarily silence for up to 12 hours. Replace the entire smoke alarm unit as soon as possible. |
| Alarm sounds continuously without visible smoke. | Nuisance alarm (e.g., steam, cooking fumes, dust). | Press the Test/Silence button to silence for 10 minutes. Ventilate the area. If false alarms persist, clean the alarm as per Maintenance instructions. |
| Alarm does not sound during test. | Battery not activated or unit is faulty. | Ensure the yellow battery tab is removed. If the problem persists, the unit may be faulty and needs replacement. |
| Alarm LED does not flash. | Unit is not powered or faulty. | Ensure the battery is activated. If no LED activity, the unit may be faulty and needs replacement. |
Specifications
| Brand | HEIMAN |
| Model Number | S1-S |
| Power Source | Battery Powered (10-Year Lithium Battery) |
| Sensor Type | Dual-Beam Photoelectric |
| Alarm Volume | 85 dB at 10 ft |
| Product Dimensions | 2.76"D x 2.76"W x 1.46"H |
| Item Weight | 0.28 Pounds |
| Material | ABS+PC (UL94 V-0 rated) |
| Operating Humidity | ≤ 95%RH (no condensation) |
| Upper Temperature Rating | 100 Degrees Fahrenheit |
| Certifications | UL 217 10th Ed. Certified |
Warranty and Support
For warranty information and customer support, please refer to the documentation included in your product packaging or visit the official HEIMAN website. Keep your purchase receipt as proof of purchase for any warranty claims.
Contact Information:
- Manufacturer: HEIMAN
- Seller: HEIMAN-US (on Amazon)
- For further assistance, please contact HEIMAN customer service.







