HummBox H2S is a connected H2S (hydrogen sulfide) sensor, with Sigfox or Lora, self powered, to monitor odours issues.
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Countries adapted for RC1

Commercially available


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 HummBox H2S is a connected H2S (hydrogen sulfide) sensor, with Sigfox or Lora, self powered, to monitor odours issues. 

H2S Cells are interchangeable (every year or two years depending of the level of exposure). 

Use cases : 

  • Odours issues monitoring (ppb)
  • Industrial site and water treatment plant monitoring (ppb or ppm)
  • Sewerage systems, gully and combined sewer systems monitoring (ppb or ppm)
  • H2S level due to green seaweed, Gulf seaweed monitoring (ppb)

 H2S ppb sensor

  • Precision : ±8 ppb (RMS)
  • Resolution : 0,68 ppb
  • Functional range : 0 à 2 300 ppb, -30 à +50°C
  • Limit of operational range : 100 ppm
  • Deviation : up to 20% per year

H2S ppm sensor   

  • Precision : ± 0,5 ppm (RMS)
  • Resolution: 0,56 ppm
  • Functional range : 0 à 2 000  ppm, -30 à +50°C
  • Limit of operational range : 10 000 ppm
  • Deviation: up to 3% per year


  • Radio frequency : 868 Mhz
  • LPWAN : Sigfox or Lora (transmit power : 14 dBm)
  • Internal antenna (option)
  • External antenna (with extension : 3m) (option)

User interaction  

  • Button for on-site configuration and instant measurement
  • Audio feedback for interactions

Box and mounting  

  • Waterproof box and sensor IP65
  • Easy mounting with screws or clamp
  • Size: 115 x 65 x 55 mm, Cell box size: 80 x 80 x 55 mm
  • Weight: 540g (both boxes and cable)

Autonomy and measurement frequency 

Measurement frequency can be managed over the cloud from once a day to 144 times per day (every 10 minutes) 

Battery C  : 12 years for 6 measures per day (in LoRaWAN)

Smart frequency mode increases battery life time adapting the  frequency to the dynamic of the physical paramater monitored. For  example, in standard case, the autonomy can be increased from 2 years to  4.5 years. 

Compliance : CE, ROHS, LoRaWan, Sigfox, Objenious, Orange

Desktop & mobile web App 

 Learn more about App 


  1. Low cost deployment and maintenance 
  2. Easy access to business data through app and Rest APO
  3. -Great autonomy 
  4. Dual Mode : Sigfox or LoRaWan for more flexibility when deployed 
Downloadable resources
  • DS-HB H2S .pdf

In order to download a datasheet please Sign in or Register



Sigfox Ready

Class 0

End Product Certificate P_0047_1EF6_01



Actionable data

Typical number of messages per duration



Commercially available
We can provide commercial support in the following countries


Production capabilities

1,000-10,000 items

Warranty duration

2 year(s)

Technical Details

Product casing

Dimensions (in mm): 115 x 65 x 55

Weight: 540gr

IP Code: IP65

Recommended operating temperature: -20° to 50° C



Dedicated - External

Type: ½ wave


Battery life: 12 Years

Embedded Software

Flashable Firmware: No

External antenna

A connector for an external antenna is available


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