HATHEPHS CS02
HATHEPHS Smoke Detector Carbon Monoxide Detector Combo
Model: CS02
Product Overview
The HATHEPHS Ultra-Thin Smoke & CO Alarm is a 2-in-1 device designed to provide comprehensive protection against both smoke and carbon monoxide hazards in your home or RV. Featuring advanced photoelectric and electrochemical sensors, it offers high sensitivity and accuracy, minimizing false alarms. The built-in 10-year lithium battery ensures long-lasting, continuous operation without the need for frequent replacements. Its ultra-thin design and large test/silence button make it user-friendly and easy to install.

Image: The HATHEPHS Smoke and CO Detector, showcasing its sleek, ultra-thin design. It is shown both from a top-down perspective and resting on a hand to illustrate its compact size.

Image: A close-up of the HATHEPHS detector highlighting its ultra-thin profile (1.1 inches) and diameter (4.7 inches), emphasizing its compact and discreet design.
Key Features
- 2-in-1 Protection: Utilizes dual sensors for detecting both smoke and carbon monoxide, alerting with an audible alarm exceeding 85 dB.
- Built-In 10-Year Battery: Equipped with a sealed lithium battery for 10 years of continuous power, eliminating frequent replacements.
- High Sensitivity & Accuracy: Features upgraded photoelectric and electrochemical sensors for faster response times and fewer false alarms.
- Large Test/Silence Button: The entire top cover acts as a button, allowing for easy testing or muting with a long stick, enhancing safety for all users.
- Ultra-Thin Design: Compact at Ø 4.7 x 1.1 inches, making it easy to install discreetly anywhere.
- Quick Installation: Simple installation on any wall or RV using provided adhesive tape or screws.

Image: An illustration showing the 2-in-1 protection feature of the detector, with smoke and CO icons floating around a living room, indicating comprehensive detection.

Image: A family in a living room, with an overlay indicating "10-Year Battery Life" and a battery icon, emphasizing the long-lasting power of the device.
Setup and Installation
1. Activation Before Use
Before installing your HATHEPHS Smoke & CO Alarm, it must be activated. This ensures the 10-year sealed lithium battery is engaged and the device is ready for operation.
- Locate the center of the top cover of the alarm.
- Press and hold the center of the top cover firmly for 10 seconds.
- Continue holding until the LED indicator lights up and you hear a distinct beep.
- Release the button. The alarm is now activated and ready for installation.
Video: This video demonstrates the activation process of the HATHEPHS Smoke and Carbon Monoxide Detector, showing how to press and hold the button to initiate the device for the first time.
2. Choosing an Installation Method
The HATHEPHS alarm offers two convenient installation options:
- Adhesive Tape (More Convenient): Ideal for quick and easy mounting on smooth surfaces without drilling.
- Screws and Anchor Plugs (More Secure): Recommended for a permanent and robust installation, especially on uneven surfaces or for added security.

Image: A visual guide demonstrating two installation methods: using adhesive tape for convenience or screws and anchor plugs for a more secure attachment.
3. Mounting the Alarm
Once you've chosen your method, attach the mounting bracket to your desired location on a wall or ceiling. Ensure the location is free from obstructions and away from direct drafts or vents. Then, twist the alarm onto the mounted bracket until it clicks securely into place.

Image: The HATHEPHS Smoke and CO Detector mounted on a wall in a bedroom, illustrating its discreet presence and continuous home protection.
Operating Instructions
Testing the Alarm
It is recommended to test your alarm regularly to ensure proper functionality. The large test/silence button makes this process simple and safe.
- To test, simply press the entire top cover of the alarm.
- The alarm will sound a test pattern (multiple beeps) to confirm it is working correctly.
- To mute a sounding alarm (e.g., during a false alarm from cooking), press the top cover once.

Image: An illustration showing a long stick being used to press the large test/mute button on the detector, highlighting the ease of operation without needing to climb.
Maintenance
Battery Life and Replacement
The HATHEPHS Smoke & CO Alarm features a built-in 10-year lithium battery, designed to last the entire lifespan of the unit. This means no battery replacements are necessary under normal operating conditions.
- The device will provide a low battery warning (a chirp or visual indicator) when the battery is nearing the end of its 10-year life.
- When the low battery warning occurs, it is time to replace the entire alarm unit.
- To conserve battery life when not in use (e.g., during storage), the alarm can be turned off by following the deactivation instructions in the full user manual.
Automatic Self-Check
The alarm is equipped with an automatic self-check function to continuously monitor its internal components and sensor performance. This feature helps ensure the device is always operating optimally.

Image: An illustration depicting the automatic self-check feature of the detector, showing icons for low battery warning and malfunction warning, indicating continuous monitoring.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Alarm chirps periodically | Low battery warning (end of life) | The 10-year battery is nearing its end. Replace the entire alarm unit. |
| False alarms (e.g., during cooking) | Alarm is too close to cooking fumes or high humidity areas. | Press the large test/silence button to mute the alarm. Consider relocating the alarm further from sources of steam or smoke. Ensure proper ventilation in cooking areas. |
| Alarm does not activate after holding button for 10 seconds | Device not properly activated or internal issue. | Ensure you are pressing the center of the top cover firmly for the full 10 seconds. If still unresponsive, the unit may be faulty and require replacement. |
Specifications
- Brand: HATHEPHS
- Model: CS02
- Power Source: Battery Powered (1 Lithium Metal battery included)
- Battery Life: 10 Years (built-in)
- Alarm Type: Sound & Visual (exceeds 85 dB)
- Sensor Type: Photoelectric (smoke) and Electrochemical (carbon monoxide)
- Product Dimensions: 4.7"D x 1.1"W x 4.7"H
- Item Weight: 6.5 ounces
- Material: ABS
- Color: White
- Included Components: 1 x 2-in-1 Smoke and CO Alarm, 1 x Mounting Bracket, 1 x Adhesive Tape, 2 x Screws/Anchors, 1 x User Manual
Warranty and Support
For specific warranty information or technical support, please refer to the contact details provided in the packaging or visit the official HATHEPHS website. Keep your purchase receipt for warranty claims.
Manufacturer: Shenzhen Fire Security Technology Co., Ltd