ToxiRAE II (PGM-1191) Ammonia (NH3) Gas Detector

ToxiRAE II (PGM-1191) Ammonia (NH3) Gas Detector

Product Code - 703882-01

From: Excl. Tax: £170.00 Incl. Tax: £204.00

To: Excl. Tax: £296.00 Incl. Tax £355.20

Price as configured: Incl. Tax: £0.00 ( £0.00 ex VAT)

Availability: In stock

* Required Fields

Price as configured: Incl. Tax: £0.00 ( £0.00 ex VAT)

Availability: In stock

From: Excl. Tax: £170.00 Incl. Tax: £204.00

To: Excl. Tax: £296.00 Incl. Tax £355.20

Description / Features / Spec


ToxiRAE II (PGM-1191) Ammonia (NH3) Gas Detector

The ToxiRAE II Ammonia (NH3) Monitor continuously displays toxic gas concentrations to the user and costs a little more than disposable detectors.  Typical disposables only display remaining life whereas the RAE’s NH3 detector is fully-featured and provides a continuous, digital display of the gas concentration, STEL, TWA and peak values as well as high and low alarms.

RAE System’s ammonia detector is a simple-to-use one-button product and is easy to calibrate.  

By using or modifying the alarms, specific requirements can be met. These include a bright red flashing alarm, a loud 90 dB buzzer and a built-in vibration alarm. 

To assist ammonia monitoring, the instrument can be hands-free and can clip onto a hardhat, shirt pocket, shoulder strap, or belt.  The ABS housing of the ToxiRAE II ammonia detector is durable, highly-impact resistant and carbon-loaded.   

Once disposable monitors are turned on they stay on until their batteries expire, whereas the ToxiRAE II ammonia monitor allows the user to decide when and where the device is used and can be turned off accordingly. 

RAE System’s NH3 detector does not have a pre-programmed expiration date so the user will get the full life out of the battery and sensor, which can both be easily replaced in the workplace.  Due to the cost of the ToxiRAE II being similar to many reduced-feature disposables, there is a choice to renew the monitor or obtain a fresh, new monitor.

This ammonia monitor also comes with a 2 year guaranty, stainless steel alligator clip, wrist strap, calibration gas test adapter and a high-capacity Lithium battery.      

It can be applied in fields such as oil production, chemical plants, fire service and power plants.

Key Features

  •  Large, easy-to-read continuous display of gas concentration in ppm
  • Displays STEL, TWA, and Peak values
  • Field replaceable filter and battery
  • Field replaceable sensor 
  • 2-Year warranty
  • User adjustable high, low, STEL, and TWA alarms
  • Varying audio alarm signals for different alarm conditions
  • Bright red flashing alarm
  • Loud 90 dB buzzer
  • Built-in vibration alarm
  • Holds Peak values
  • Simple calibration
  • Durable, highly impact-resistant, carbon loaded ABS housing
  • Highly resistant to RFI interference
  • IP-65 rated weather resistant
  • Stainless steel corrosion resistant attachments
  • Small enough to be clipped onto a hard-hat, shirt pocket, shoulder-strap, or belt


Range 0 to 50



3.6" x 1.9" x 0.9" (9.3 cm x 4.9 cm x 2.2 cm)

Weight 3.6 oz (102 g) with clip
  • User-replaceable 2/3 AA high-capacity
  • Lithium battery (use only RAE Systems batteries)
  • Extra battery included for use if maximum alarm minutes are exceeded.

Operating  Time

  • 2 years typical battery life for CO/H2S/O2 sensors or 730  minutes of alarm. 
  • All other low- or high-bias sensor-equipped models, typical 1 year or 360 minutes of alarm.


One-button operation
Direct Readout
  • Instantaneous display of toxic gas concentration in ppm (or oxygen in vol %)  STEL & TWA values
  • Peak hold
  • Alarm minutes consumed

Easy-to-read LCD for continuous display of concentration in ppm and text messages

  • Audible: 90dB at 10 cm
  • Visible: Bright red/green LED bar visible from top, front, and sides
  • Sensory: Built-in vibration alarm
  • High: Displays “High,” emits 3 beeps and flashes every 3 seconds
  • Low: Displays “Low,” 2 beeps and flash every 3 seconds
  • STEL: Displays “STEL,” 1 beep and flash every 3 seconds
  • TWA: Displays “TWA,” 1 beep and flash every 3 seconds
  • Low battery: Displays empty battery symbol, 1 beep per minute


Two-point field calibration; auto-zero at startup, user-initiated span/standard reference gas


-40° to 131° F (-40° to 55° C) for O2, CO, and H2S


0 to 95% relative humidity (non-condensing)


Highly resistant to EMI/RFI

Compliant With

EMC Directive 89/336/EEC

IP Rating

IP-65: protected against dust, protected against low-pressure jets of water from all directions

Hazardous Area Approval
  • UL/cUL Classified as Intrinsically Safe for use in Class I Division 1, Groups A, B, C, D
  • Hazardous Locations T5 rating (UL/cUL, ATEX)
  • ATEX, II 1G, EEx ia IIB T5, or II 2G, EEx ia IIC T5
  • CE Mark, European Conformity
  • IECEx Ex ia IICT4
Warranty 2-year warranty for instruments with CO/H2S/O2 sensors (all other sensors have 1-year warranty)
What’s Included
  • ToxiRAE II Detector with sensor as specified
  • Operation and maintenance manual
  • Rugged stainless steel alligator clip (installed)
  • Stainless steel belt clip / hardhat adapter
  • Wrist strap
  • Calibration gas test adapter
  • High capacity Lithium battery installed



We offer a range of delivery options to suit your needs including FREE UK delivery on all orders.  All UK and International orders are sent using a fully trackable and reliable courier service.  You will receive an email notification upon despatch of your order and tracking details can be requested at any time should you wish to check the status of your delivery.

Shipping costs are dependant on delivery address and will be calculated at the time of checkout.  Delivery costs are based on a maximum weight of 20kg and maximum dimensions of 40 x 40 x 40 cm.  For orders exceeding these weights and dimensions, please contact us on for a delivery quote.

For UK orders, goods will normally be delivered within 3 - 5 working days and for all other orders within 5 - 10 working days.  Delivery timescales are based on stock availability and are subject to change at any time. 

Note: 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.


Order Cancellation and Goods Return

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.

Cancelling An Order Before Despatch

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

Cancelling An Order After Despatch

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 seven working days, beginning the day after you take delivery of your order.

You must notify us of your cancellation in writing via email to 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.

Faulty, Damaged or Incorrectly Supplied Goods

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 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

Important Information

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.

Buy on Finance

Get in touch with us to discuss finance options