MSA ALTAIR PRO Ammonia (NH3) 25/50 ppm Gas Detector
  • NH3
MSA ALTAIR PRO Ammonia (NH3) 25/50 ppm Gas Detector

Product Code - 10076730

exc VAT £666.20 inc VAT £799.44
Please note that the MSA ALTAIR PRO Ammonia (NH3) 25/50 ppm Gas Detector is now obsolete. Contact our Sales Team on 0141 771 7749 for an alternative product.
Description / Features / Spec


MSA ALTAIR PRO Ammonia (NH3) 25/50 ppm Gas Detector

Please note: this product has been discontinued.  Contact our Sales Team on 0141 771 7749 for a replacement product.

The MSA Altair Pro is a high-performance single gas detector for ammonia gas and is ideal for use in industrial applications such as oil and gas, chemicals, steel and iron, utilities, the fire service and contracting work.

A broad range of field proven, 20 series sensors are available.  They’re simple to fit which reduces the down time of the instrument.

You can be assured that the MSA Altair Pro NH3 is reliable and the integrated rugged suspension clip means the detector can be securely attached to your clothing. 

Testing the monitor is very simple and can be done with a single button press.  Results from this bump check are displayed on screen as a checkmark for 24 hours.  Other testing equipment available for the Altair Pro includes the QuickCheck and also the Galaxy calibration system.

Key Features

  • Thick rubberised housing provides protection from accidental drops – tested to withstand a 3m drop test
  • Large, numeric display is easy to read with a view to gas concentrations, alarm conditions, battery status, set points and peak readings
  • Single-button operation
  • Option to purchase other types of suspension clips; cell phone clip, lanyard clip and hardhat clip
  • 50 latest events are recorded including peak gas readings every 3 minutes
  • Highly efficient and compact CR2 battery, which is simple to replace


Range  (ppm) 0 to 100 ppm
Resolution 1.00 ppm
Size 81 x 51 x 23 mm
Weight 112 g including clip
Operating Range -20 – +50 °C
Humidity 10-95% RH non-condensing
Battery Life Minimum 12 months under 8 hours per day operation over a working week
IP Rating IP 67
  • Visual - Ultra-bright LEDs 320°C
  • Audible – 95dB at 30 cm
  • Strong vibration alarm
  • Low Alarm – 25 ppm
  • High Alarm – 50 ppm
  • STEL – 35 ppm
  • TWA – 25 ppm
Approvals ATEX – II 2G EEx ia IIC T4 (-20 °C + 50°C)
What's Included?
  • Altair Pro Instrument
  • User manual
  • Fitted suspension clip
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    Take advantage of our web-exclusive free UK mainland* delivery offer on orders over £75 ex VAT.  See all costs for delivery below and visit our main delivery page for more information on timescales as some restrictions may apply.

    UK & Ireland Delivery Options

    UK Mainland Standard Delivery on orders under £75 ex VAT - £5.95 ex VAT*
    UK Mainland Express Delivery - £21.50 ex VAT (timescales vary – please see delivery page)
    Highlands Delivery - £25.00 ex VAT
    Channel Island Delivery - £40 ex VAT
    Northern Ireland & Republic of Ireland - £25 ex VAT
    Saturday Delivery Options – Please contact us on 0141 771 7749 for more info

    Standard delivery timescales are normally 3-5 working days, depending on stock availability.  Express delivery is normally 1-3 working days, depending on stock availability.  Although we carry an extensive stock, there may be some items that are unavailable due to quantities or otherwise.  In this case we will inform you of the status of your order and whether or not it can be fulfilled within our standard delivery timeframe. *Mainland UK delivery excludes Northern Ireland, other charges apply.

    Please visit our main delivery page for more terms and conditions or contact our Sales Team on 0141 771 7749  or [email protected] for more information.

    International Delivery Options

    Delivery costs vary between countries.  Please visit our main delivery page for more information.



    Should you wish to cancel an order or return unwanted goods please follow the procedures detailed below to help us ensure cancellations/returns are processed as quickly and efficiently as possible.

    Simply log on to your customer account, note the order reference number and email the full cancellation details to [email protected] or contact us on 0844 550 0001. Assuming the order has not been despatched we will cancel.

    You have the right to cancel the purchase of goods without having to give a reason at any time within the “cooling off period” of fourteen working days, beginning the day after you take delivery of your order.

    You must notify us of your cancellation in writing via email to [email protected] or to our contact address. (Details Here)

    If you are in possession of the goods you are under the duty to retain them and take reasonable care of them.

    You must send the goods back to us in their original condition to our contact address at your own cost (unless we delivered the item to you in error or the item is damaged or defective) as soon as possible once you have cancelled the contract.

    Alternatively we will collect the goods from you which will incur a charge no greater than the actual cost of arranging the collection and shipping. In this case you must make the goods available for collection. We will contact you to make further arrangements.

    We reserve the right to make a charge not exceeding our direct costs of recovering the goods if you do not return the goods or return them at our expense.

    Upon receipt of returned items in satisfactory condition we will arrange a full credit by the same method used to pay for the goods originally. Any credit due will be processed within a maximum of thirty days.

    Note: If you wish to return goods for refund or exchange after 14 days, a re-stocking fee of 20% of the full order total will apply.

    If upon receipt of goods you find them to be faulty, damaged or if you have been incorrectly supplied an item, you should notify us within 24 hours by contacting 0844 500 0001 or [email protected] and quoting your order number and contact details.

    Frontline Safety will arrange uplift of any damaged or wrongly received goods and if on inspection of goods we also find them to be damaged, faulty or incorrectly supplied, we will offer replacement goods or provide a full refund.

    We recommend you inspect all goods prior to signing for and accepting delivery. If there is any visible damage to the outer packaging, ensure goods are sign for as damaged. In instances where it isn’t possible to sign for goods as damaged, these should be signed for as unexamined.

    Note: If your goods happen to develop a fault out with the standard returns period but within supplied warranty period or if you require any additional assistance, please contact us on 0844 550 0001 or email [email protected]


    All postage, handling, customs and duty charges for all returned goods are the responsibility of the customer. We recommend using a fully traceable, insured service as goods are your responsibility while in transit.

    Related Blog Post

    MSA ALTAIR and ALTAIR PRO: Which Should You Buy

    The PRO also holds more data, up to the last 50 events stored in the memory, again downloadable for analysis, and any measured gas values are clearly displayed on the unit’s backlit screen, another key difference from the ALTAIR.

    Product Video