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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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    🔙 30-day returns
    📅 Delivery: 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

    Model SISCO-PT01C
    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

    How to setup a 4 in 1 smoke detector via App?

    To connect a smart CO2 detector to an app, follow these steps: Download the App associated with your CO2 meter from the App Store or Google Play. Ensure your CO2 detector is powered on and in pairing mode. Open the app, create an account, and log in.

    Follow the on-screen instructions to add a new device. Select the CO2 smoke detector from the list of available devices and follow the prompts to complete the pairing process. Once connected, you can monitor CO2 levels, receive alerts, and customize settings through the app for enhanced safety and convenience.


    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.
    5.0 3
    Write your own review Close
    Eamon | 10/20/2023 1:50 AM
    4-in-1 function is good
    It's incredibly convenient. Having four essential functions in one device is a huge space-saver and simplifies maintenance.
    Marisa | 8/16/2023 11:49 PM
    A great value
    This smoke detector is smaller than what I anticipated, which I like so it's not so obtrusive. A test of the alarm lets me know it is going to wake people up if there's an emergency! A great value!
    Warren | 3/27/2023 2:11 AM
    I highly recommend this 4 in 1 smoke detector
    I have recently installed a smoke detector in my home and have been very impressed with its performance. The 4 in 1 smoke detector was very easy to install and the instructions were clear and easy to understand. I am sure it will last a long time.