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4 in 1 Smoke Detector, Carbon Dioxide (CO2) & Smoke Alarm

4 in 1 smoke and carbon dioxide detector built-in battery for 6-8 hours working without power, has CO2 and smoke alarm for air quality detection. This smoke alarm detector can show real-time temperature, humidity, smoke and CO2 concentration on LCD display, which is widely used in ordinary households and small entertainment places.
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Delivery date: 7-12 days

4 in 1 smoke and carbon dioxide detector detects CO2, smoke, temperature and humidity in the air, powered by 1400mAh battery, operating voltage DC 5V, CO2 detection range from 0 to 1500 ppm. This detector is also a wall-mounted smoke alarm.

4 in 1 smoke detector details

4 in 1 carbon dioxide (CO2) and smoke detector details

  1. Smoke sensor
  2. NDIR CO2 sensor
  3. Charging port
  4. CO2 alarm buzzer
  5. Audible smoke alarm
  6. Wall mount hole
  7. Rear cover
  8. LCD display
  9. Power button
4 in 1 CO2 and smoke detector

4 in 1 carbon dioxide (CO2) and smoke detector functions

  • LCD display with adjustable backlight.
  • With self-test/mute function.
  • Built-in battery. Can work 6-8 hours without charging.
  • Fireproof ABS material.
  • Language changes with the system.


Smoke detectors have a wide range of applications, such as bedrooms, living rooms, restaurants, offices, gyms, car cinemas, parks, schools, plant growing greenhouses, factories, bars, hotels, etc.

Smoke detector application

Product name Smoke alarm & carbon dioxide detector
Material Fire resistant ABS + LCD
Smoke sensor Photoelectric smoke sensor
CO2 sensor NDIR CO2 sensor
CO2 measure range 0-1500 ppm
Accuracy ±5% or ±10 ppm
Resolution 0.5 ppm
Repeatability ±2%
Response time <60S
CO2 indicator 0~499 ppm, shown as green
500~999 ppm, shown as yellow
1000~1499 ppm, shown as orange
1500 ppm and above, shown as red
Smoke sensitivity 0.1% db/m~0.3% db/m
CO2 and smoke alarm Sound alarm, 85dB (1~3M)
Temperature measuring range -20℃~60℃ (±2%)
Humidity measuring range 5%~95% (±5%)
Working temperature 0℃~50℃
Storage temperature -10℃~60℃
Working humidity 5~95%RH
Battery capacity 1400mAh
Resolution 1ppm
Input voltage DC 5V
Power supply Chargeable battery and 2M long USB
Warm-up Time < 7 seconds
Warranty time 12 months
Dimension 102*52*140mm
Weight 1.5kg

Q1: What is a smoke detector?
A smoke detector is a typical device converted from space fire protection measures to civilian use. The smoke detector mainly realizes fire prevention by monitoring the concentration of smoke. The smoke detector adopts ion-type smoke sensor. The ion-type smoke sensor is a kind of advanced technology, stable and reliable sensor, which is widely used in various daily life. Its performance is far better than that of gas-sensitive resistance fire alarms.

Q2: How does a smoke detector work?
A2: The infrared beam of the infrared emission tube is dispersed by the smoke particles, and the intensity of the scattered light is proportional to the smoke concentration. Therefore, the intensity of the infrared beam received by the photosensitive tube will change, and it will be converted into a point signal, which will eventually become an alarm signal.

Q3: What does a smoke detector do?
A3: Smoke detectors assemble sensors, control assemblies, and alarm notifications. Therefore, this is a collection of multi-functional detector in one, is the most suitable for residential. Once the smoke detector is triggered, the device sends a signal to the audio-visual notification device, which will issue an alarm. Inside the smoke detector, you'll find a power source and a built-in sensor that can react to the smoke in different ways.

Tips: How to install a 4 in 1 smoke detector?

  1. Find the best location for the installation of the smoke alarm detector and find out the location of hidden pipes and cables, avoiding drilling holes there.
  2. Remove the smoke detector cover and install the battery as needed.
  3. Fix the rear cover chassis of the smoke alarm on the wall or ceiling, and mark the screw points with a sharp cone or a nail through hole.
  4. Drill holes and install screws and bolts.
  5. Screw the smoke alarm into place and start testing.

Thank you for buying industrial test and measurement equipment on, all products sold by sisco and the partner cover a 12 months warranty, effective from the date of receiving the products.

What is covered?

sisco is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.

What is not covered?

  • Product purchased from anyone other than a sisco store or a sisco authorized reseller.
  • Expendable parts.
  • Routine cleaning or normal cosmetic and mechanical wear.
  • Damage from misuse, abuse or neglect.
  • Damage from use of parts other than sisco approved.
  • Damage from use outside the product’s usage or storage parameters.
  • Damage from use of parts not sold by sisco.
  • Damage from modification or incorporation into other products.
  • Damage from repair or replacement of warranted parts by a service provider other than a sisco authorized service provider.
  • Damage caused by the application environment not meeting the product usage requirements and the failure to perform preventive maintenance.
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