Gravity: Formaldehyde (HCHO) Sensor (Arduino & Raspberry Pi Compatible)

SKU: SEN0231 Brand: DFRobot

Retired Product

Search for an alternative
This product has been retired. It is no longer available, but this page has been kept for reference.

Introduction

Formaldehyde (HCHO) sensor is an Arduino & Raspberry Pi compatible module, which is the ideal solution for indoor air quality monitor.

This is a HCHO(CH2O) sensor module. It can be used to measure HCHO in air. Through it, you can know the air quality. This sensor module is widely used in many air testing applications, such as indoor air quality, real time quality monitoring stations. Our HCHO sensor module can detect and measure HCHO accurately. Many advantages are available, such as strong anti-jamming capability, high stability, ATC, high sensitivity(up to 0.01ppm) and long life(2 years in air). Integrated with Gravity Interface which is easy to used, wide input voltage, and optional output signal, Our module can be almost compatible with all MCU. According our sample codes , an HCHO detector can be made very quickly.

This is a formaldehyde (HCHO) sensor module with small size, and Arduino compatibility. Through it, you can measure the concentration of formaldehyde in air and know the Real-Time air quality. It can be widely used in many air testing applications, such as indoor air quality, real time quality monitoring stations. Applied in a DIY formaldehyde detector is also suitable.

The common solution to measure HCHO in air is the reagent or colourimetric card. But this solution will occupy much time, and used only once. And the result is not very accurate and you just know probably. VOC gas sensor is second generation solution. it can detect HCHO roughly, because this sensor only expresses the whole concentration of VOC gas, not just HCHO only.

DFRobot Gravity Formaldehyde sensor module can detect and measure HCHO gas concentration accurately. Many advantages are available, such as strong anti-jamming capability, high stability, ATC, high sensitivity(up to 0.01ppm) and long life(2 years in air). It also support 3.3~6V wide range power supply, it means it could be used with Arduino and Raspberry Pi directly. The Formaldehyde monitor integrates with Gravity Interface, easy to use, plug and play. According the sample codes, it is easy to make your own formaldehyde detector. Combined with IOT, it is possible to make an automaic air quality station which can measure HCHO in different sites.

Cautions:
1. When using the sensor module, do not touch the white sensing film.
2. Please keep away from high concentration Hydrogen sulfide, hydrogen, methanol, ethanol, carbon monoxide. These gases will affect the precision and 3. reduce the service life.
4. Please keep the modules warming up for at least 5 minutes when first using.
5. The sensor shall avoid organic solvent, coatings, medicine, oil and high concentration gases
6. Please do not plug the sensor which on the module, and do not modify components on the PCB.
7. Excessive impact or vibration should be avoided.
8. Please do not use the modules in systems which related to human being’s safety.
9. Please do not use the modules in strong air convection environment.
10. Please do not expose the modules in high concentration organic gas for a long time.

FEATURES

  • High stability and sensitivity
  • Automatic temperature compensation
  • Wide input voltage(3.3~6V)
  • Support DAC and UART output
  • Long life(2 years in air)
  • High resolution (0.01ppm)
  • Specification

  • Input Voltage: 3.3~6V
  • Target Gas: HCHO
  • Interference Gas: Alcohol, CO & etc
  • Detection Range: 0~5ppm
  • Resolution: 0.01ppm
  • Warm Up Time: ≤3 minutes
  • Response Time: ≤60 seconds
  • Resume Time: ≤60 seconds
  • Interface Type: Gravity-3Pin
  • Output Signal: Optional DAC(0.4~2V,for 0-5ppm) or UART(9600)
  • Operating Temp: 0~50℃
  • Operating Hum: 15%RH-90%RH(No Condensation)
  • Storage Temp: 0~50℃
  • Working Life: 2 years(in air)
  • Dimension: 38*28*15mm/1.50*1.10*0.59inches
  • Weight: 22 g

  • Documents

  • Product WIKI
  • More Documents 

  • Parts List

  • HCHO Sensor Module x1
  • Digital Gravity 3Pin Cable x1
  • M3 * 10 nylon column x4
  • M3 * 5 screw x8

  • This product is listed in:

    Retired

    Product Comments

    Exact shipping can be calculated on the view cart page (no login required).

    Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).

    We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):

    • $3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
    • $6+ for Standard Post (typically 6+ business days, tracked)
    • $10+ for Express Post (typically 2+ business days, tracked)
    • Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.

    Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

    Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.

    International Orders - the following rates are for New Zealand and will vary for other countries:

    • $11+ for Pack and Track (3+ days, tracked)
    • $16+ for Express International (2-5 days, tracked)

    If you order lots of gear, the postage amount will increase based on the weight of your order.

    Our physical address (here's a PDF which includes other key business details):

    Unit 18, 132 Garden Grove Parade
    Adamstown
    NSW, 2289
    Australia

    Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

    Have a product question? We're here to help!

    Write Your Own Review

    Guides

    The Maker Revolution

    The Maker Revolution celebrates the creation of new devices and the modification of existing ones - ...
    The Maker Revolution celebrates the creation of new devices and the modification of existing ones - ...

    Projects

    Raspberry Pi Video Looper Display Installation | Overshare Video Festival

    IntroductionA suspended ceiling display of forty repurposed screens and displays, each screening cr...
    IntroductionA suspended ceiling display of forty repurposed screens and displays, each screening cr...

    Mailbox Delivery Notification System

    Introduction During the Covid lockdown, I needed something to do. The Postman or woman does not de...
    Introduction During the Covid lockdown, I needed something to do. The Postman or woman does not de...

    PiicoDev Schematic System

    Introduction: Hi everybody. Over the past few weeks, I have been working on an intuitive system th...
    Introduction: Hi everybody. Over the past few weeks, I have been working on an intuitive system th...
    Feedback

    Please continue if you would like to leave feedback for any of these topics:

    • Website features/issues
    • Content errors/improvements
    • Missing products/categories
    • Product assignments to categories
    • Search results relevance

    For all other inquiries (orders status, stock levels, etc), please contact our support team for quick assistance.

    Note: click continue and a draft email will be opened to edit. If you don't have an email client on your device, then send a message via the chat icon on the bottom left of our website.

    Makers love reviews as much as you do, please follow this link to review the products you have purchased.