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GFG Micro IV Hydrogen Chloride (HCl) Personal Gas Monitor

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Availability: In stock
Free delivery on all UK orders

Excl. VAT: £430.00 Incl. VAT: £516.00

GFG Micro IV Single Gas Detector

Designed with durability and comfort in mind, the GFG Micro IV reliably monitors for any single gas hazard within its wide range of available toxic gas models. With easy on/off operation, this single gas detector offers extended longevity with a two year field-replaceable battery and sensor. Calibration is a simple procedure. A wide range of user options, multi-language display and data logging functionality make the GFG Micro IV an ideal solution for many applications

  • Fitted with 0-30.0ppm Hydrogen Chloride (HCl) sensor
  • Direct, real-time readings on large LCD
  • Exceptional battery run-time
  • Secure and accurate history with data logging option
  • Simple automatic calibration procedure
  • Full function self-test of sensor, battery status, circuit integrity and audible/visual alarms on start up
  • Bright wide-angled visual alarm bars
  • Rugged outer case offering hazard protection
  • Water-resistant

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Product Description


Single-gas detector with data-logger
The GFG Micro IV single-gas detector has smart, interchangeable sensor technology, low cost of ownership where 1 x AA battery lasts for up to 6 months in continuous use.
The GFG Micro IV contains an integrated data-logger which records and time-stamps all events. This stored data can be transmitted to a PC via either the DI220 data interface station or DS220 docking station. Three alarm levels are available (most competing instruments only offer two) in addition to STEL and TWA alarms.
The unit has a very loud (95dB) sounder and high-visibility red LED alarms. Vibration alarm is also available as an option. A large display ensures that gas concentrations can be quickly and easily read by the user.

Gases available:
O2, H2S, CO, NO, NH3, HCN, HCl, SO2, H2, C2H4O, SiH4, PH3, THT, HF, COCl2, NO2, Cl2, O3, ClO2

Additional functionality of the MICRO IV

  • Data-logging
  • Infrared interface for data communication to Docking stations
  • Continuous storage of data without PC
  • Continuous display of gas concentration
  • Up to 6 months continuous operation with only one AA battery
  • Simple bump check and calibration via the Docking station (option)

Carrying possibilities (option)
The GFG Micro IV is compact, light and can be securely fastened to the user’s clothing with a durable crocodile clip. A belt clip is also available. An optional rubber boot is also available to give the instrument further protection in arduous work environments.

Attachable motorised pump (accessories)
Inaccessible areas, like tanks and containers, can contain deadly gas mixtures. With the Micro IV, an attachable high-performance pump is available that can sample the gas from up to 30 metres away.

The pump and tube is quick and easy to attach, and has its’ own power supply which means the run time of the Micro IV instrument is not compromised. The separate AA battery pack gives 8 hours of continuous pump operation.


Additional Information

Additional Information

Gas Type No


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Delivery & Returns

Online Delivery Policy

Online Safety Store will deliver all products within 2-3 days, where possible next day delivery will apply.

Delivery Costs

  • Standard UK Deliver (3-4 Days) - Free
  • UK Next Day - £12.95
  • Europe (4-5 Days) - £29.95
  • Rest of the World (7-9 Days) - £89.95


  • Deliveries will generally be made between 7am and 6pm Monday to Friday (excluding bank holidays). Your order may be despatched from multiple locations and therefore arrive as separate deliveries.
  • Delivery will be made to the address of the registered debit/ credit card holder used to place the order and must be a UK address only.
  • We will endeavour to deliver at the agreed time however, we cannot guarantee delivery dates and times as these may be affected by circumstances outside our control.  We will do our best to contact you if we are forewarned of delays.
  • For this reason we are unable to accept responsibility for lost working time and recommend goods are ordered well in advance of any project start dates.
  • If we are unable to gain access to the agreed delivery address we will return the goods to our warehouse and make contact with you to re-arrange delivery.  Unfortunately in these circumstances we may have to charge you a further delivery fee.
  • All goods must be signed for to confirm receipt.  If you are unavailable at this time we recommend a responsible adult is available to sign on your behalf.

Delivery Detail

  • Heavy goods deliveries may require your assistance to offload. Offers to assist the delivery are made at your own risk and should only be attempted if you are comfortable lifting the load. In the event you are unable to assist and the delivery is too heavy for the driver to safely deliver on their own, we will discuss with you and will either re-arrange the delivery for a later date where more assistance is available, or the delivery will be made to the nearest point of access that can be achieved by the driver. Our delivery team will unpack and assemble any items which are sold as one but are delivered as separate pieces: please note this excludes the installation of fixed gas detection systems.
  • The delivery crews are not able to attempt delivery where damage to your premises may result.
  • We carry the risk of loss or damage to the products until you sign for them upon receipt, we therefore recommend that you inspect the product thoroughly at this time to ensure you are happy that the goods have not been damaged in transit and all items are present. Goods identified as damaged on delivery will be taken away at that point.
  • Any subsequent problems that are not immediately identifiable upon delivery must be reported to us within 10 working days of receipt of the order, please contact 08448 707 402. If Products are considered by you to be faulty or defective after the 10 day period has expired please contact us for consideration of your query.
Technical Documentation & Downloads
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