1. Bubuka
The First Alert SMCO210 is a 10-Year Sealed Battery Combination Smoke & Carbon Monoxide Alarm featuring a slim profile design. This device utilizes Precision Detection advanced sensing technology, complying with current industry standards to minimize nuisance alarms from cooking while providing early warning for both fire and carbon monoxide (CO) hazards. The integrated 10-year sealed battery eliminates the need for battery replacements and prevents low battery chirps for the alarm's lifespan.

Figure 1: First Alert SMCO210 10-Year Battery 2-in-1 Smoke & CO Alarm with Slim Profile Design. This image highlights the compact and dual-functionality of the alarm.
2. Setélan
2.1 Ngabongkar bungkusan sareng Inspeksi Awal
Carefully remove the alarm and its components from the packaging. Inspect the unit for any signs of damage. The package includes the SMCO210 alarm, a mounting bracket, and hardware (screws and anchors).

Figure 2: Contents of the First Alert SMCO210 package, showing the alarm unit, mounting bracket, screws, and anchors.
2.2 Disarankeun panempatan
For optimal safety, install combination smoke and carbon monoxide alarms on every level of your home and in every bedroom. Ensure alarms are placed away from cooking appliances to minimize nuisance alarms, but close enough to detect actual fire hazards. Avoid placing in areas with high humidity or extreme temperatures.

Figure 3: A visual guide illustrating the recommended locations for smoke and carbon monoxide alarms throughout a typical home, including bedrooms, hallways, living rooms, kitchens, and basements.
2.3 Pasang Alarm
- Select a suitable location on a ceiling or wall, following the recommended placement guidelines.
- Use the provided mounting bracket as a template to mark the screw holes. The bracket is designed with multiple slots to accommodate various existing screw hole patterns, eliminating the need to drill new holes if replacing an older unit.
- Drill pilot holes if necessary and insert the plastic anchors.
- Pasangkeun braket pemasangan kana lalangit atanapi témbok nganggo sekrup anu disayogikeun.
- Align the alarm with the mounting bracket and turn clockwise until it locks securely into place. This action activates the alarm's sealed 10-year battery.

Figure 4: A person installing the First Alert SMCO210 alarm on a ceiling, demonstrating the ease of mounting.
Video 1: SMCO210 Summary Video. This video provides a brief overview fitur produk sareng prosés instalasi.
3. Operasi
3.1 Aktipkeun
The alarm activates automatically when twisted onto the mounting bracket. A green LED light will flash periodically to indicate normal operation.
3.2 Tés / Tombol tiiseun
Press and hold the 'TEST/SILENCE' button located on the front of the alarm to test its functionality. The alarm will emit a series of loud beeps, indicating that the smoke and CO sensors are working correctly. This button can also be used to silence nuisance alarms for a short period.

Figure 5: A person testing the alarm by pressing the central button, demonstrating a routine check for functionality.
3.3 Sinyal Alarm
- Alarm haseup: Three loud beeps followed by a pause, then three more beeps. The red LED will flash rapidly.
- Alarm Karbon Monoksida: Four loud beeps followed by a pause, then four more beeps. The red LED will flash rapidly.
- Perhatosan Batré Lemah: A single chirp every minute. This indicates the sealed 10-year battery is nearing its end of life.
- Peringatan Akhir Kahirupan: Two chirps every 30 seconds. This indicates the alarm unit needs to be replaced.
4. Pangropéa
4.1 Tés Rutin
Test your alarm weekly by pressing the 'TEST/SILENCE' button. This ensures the electronic circuitry, alarm, and battery are functioning correctly.
4.2 beberesih
Clean your alarm at least once a month to remove dust and debris. Use a soft brush attachment on your vacuum cleaner to gently vacuum the cover of the alarm. Do not use water, cleaners, or solvents as these may damage the unit.
4.3 Panggantian Akhir Umur
The SMCO210 alarm has a sealed 10-year battery and is designed to last for 10 years from the date of installation. After 10 years, the unit will signal an end-of-life warning (two chirps every 30 seconds), indicating it's time to replace the entire alarm unit. Do not attempt to replace the internal battery.

Figure 6: A visual reminder to replace the alarm unit after 10 years of service.
5. Cara ngungkulan
5.1 Nuisance Alarms
If the alarm sounds due to cooking smoke or steam, press the 'TEST/SILENCE' button to temporarily silence it. Ensure proper ventilation in cooking areas. If nuisance alarms persist, review the placement guidelines to ensure the alarm is not too close to sources of steam or smoke.
5.2 Chirping Sounds
- One Chirp per minute: Indicates a low battery. The sealed battery is nearing the end of its 10-year life. Replace the entire alarm unit.
- Two Chirps every 30 seconds: Indicates the alarm has reached its end-of-life. Replace the entire alarm unit.
- Intermittent Chirps: May indicate a malfunction or a need for cleaning. Clean the alarm as per maintenance instructions. If chirping continues, replace the unit.
5.3 Alarm Does Not Sound During Test
Ensure the alarm is properly twisted onto its mounting bracket and fully activated. If the alarm still does not sound, the unit may be defective and should be replaced immediately.
6. Spésifikasi
| Fitur | Rincian |
|---|---|
| merek | Siaga munggaran |
| Nomer modél | SMCO210 |
| Sumber Daya | 10-Year Sealed Lithium Battery (included) |
| Jenis Alarm | Combination Smoke & Carbon Monoxide |
| Tipe sénsor | Potoéléktrik |
| Dimensi produk | 5.67 "D x 5.67" W x 1" H |
| Item Beurat | 6.4 ons |
| Kalembaban Operasi | 10-95% RH |
| Warna | Bodas |
| Produsén | Résideo |
| UPC | 029054022233 |
7. Jaminan & Dukungan
7.1 Émbaran jaminan
This First Alert SMCO210 alarm comes with a manufacturer's warranty. For detailed information regarding the warranty period and terms, please refer to the documentation included with your product or visit the official First Alert websitus.
7.2 Rojongan Palanggan
For technical assistance, troubleshooting, or general inquiries, please contact First Alert customer support. Contact information can typically be found in the product packaging or on the official First Alert websitus: www.firstalert.com.





