Testo flue gas analyser While-U-Wait service and calibration

Now offering calibration While-U-Wait*, JMW is a Testo approved specialist calibration and service centre located in Harlow, Essex just 25 miles from the centre of London.

JMW Limited
JMW Limited
The Calibration Centre
Warwick House
Perry Road
Harlow
CM18 7NF

Tel: 01279 307100


The JMW calibration and service team are long serving, experienced and fully factory trained by Testo. With a calibration laboratory supported by a quality management system accredited to BS EN ISO9001:2000, all certificates of calibration are traceable to international standards.

JMW's objective is to provide you, the customer with a rapid calibration service, combined with first class product assistance and technical support. As an approved service centre JMW are authorised to perform warranty repairs free of charge in line with the manufacturer's warranty.

Domestic flue gas analyser service price
Model Year 1 Year 2 Year 3 Year 4 Year 5
Testo 310 £130.80 £130.80 £178.80 £130.80 £130.80
Testo 320/320B £130.80 £130.80 £178.80 £130.80 £130.80
Testo 327-1 £130.80 £130.80 £178.80 £130.80 £130.80
Testo 300 (non-LL) £130.80 £130.80 £178.80 £130.80 £178.80
3 digit date code 804-705 704-605 604-505 504-405 404-305
4 digit date code 0418-0517 0417-0516 0416-0515 0415-0514 0414-0513
Annual Health Check calibration
ISO Calibration Certificate calibration
Replacement O2 and CO sensors when required calibration
Fast service - 5 days door to door calibration
While-U-Wait* service & calibration option calibration

Fixed charge service available on correctly maintained Testo 310, 320B, 327-1 and 300 (non-LL) flue gas analysers under 6 years old.
5 day door to door service UK Mainland only, excludes weekends, seasonal and public holidays.
An additional charge of £14.40 each way applies if DPD Local collection or return is required.
Collect & return carriage at £28.80 only available from commercial premises manned 9am to 5pm
Replacement components and consumables other than sensors are chargeable at the manufacture's list price. Analysers that have not been serviced on a regular annual basis or are older than 5 years are not eligible for a fixed price service
Damage due to misuse and abuse is not covered.


Commercial flue gas analyser service price
Model Year 1 Year 2 Year 3 Year 4 Year 5 Year 6
Testo 300LL/330LL £178.80 £178.80 £178.80 £178.80 £250.80 £394.80
Testo 300LL/330LL (NO) £238.80 £238.80 £238.80 £238.80 £430.80 £394.80
Annual Health Check calibration
ISO Calibration Certificate calibration
Replacement O2 and CO sensors when required calibration
Replacement NO sensor when required calibration

Fixed charge service available on correctly maintained Testo 300LL & 330LL flue gas analysers under 7 years old.
5 day door to door service UK Mainland only, excludes weekends, seasonal and public holidays.
An additional charge of £14.40 each way applies if DPD Local collection or return is required.
Collect & return carriage at £28.80 only available from commercial premises manned 9am to 5pm
Replacement components and consumables other than sensors are chargeable at the manufacture's list price. Analysers that have not been serviced on a regular annual basis or are older than 6 years are not eligible for a fixed price service
Damage due to misuse and abuse is not covered.
Damage due to misuse and abuse is not covered.
  • Testo flue gas analysers not covered by the above fixed price service are charged as follows:
  • What's included:
    • Traceable calibration certificate, detailing:
      • Oxygen
      • Carbon monoxide
      • Nitric oxide (where fitted)
      • Temperature
      • Pressure
      • Instrument specification
      • Reading obtained before any adjustments are made
      • Whether the initial reading is within specification
      • Final reading after any adjustments are made
      • Calibration certificate example Example calibration certificate
    • In addition the instrument is serviced:
      • Free firmware upgrades as appropriate
      • Battery performance checked
      • Pump, checked and cleaned
    • Any accessories returned with the instrument are checked at no additional cost
      • Printer checked
      • Combustion probe checked
  • Premier features:
    • Fast turnaround.
      • Send the handheld instrument only, using a suitably insured, recorded delivery service.
      • Collect & return carriage only available from commercial premises manned 9am to 5pm
    • Local "While-U-Wait*" calibration service (strictly by appointment only)
      • JMW located in Harlow, CM18 7NF. Use M11 Junction 7, north of M25 Junction 27
    • Instrument database
      • Free of charge annual calibration recall notices
    • Copy calibration certificates
      • Supplied free of charge by email
    • Technical advice and support
  • Calibration "While-U-Wait" (strictly by appointment only)
    • Calibrated and ready to use within the hour
    • *A While-U-Wait administration surcharge of £14.40 per analyser applies.
    • Phone 01279 307100 for an appointment
  • Sending your Testo flue gas analyser for calibration:
    • What do I need to send?
      If you're happy that the accessories are all working fine (probe, printer, charger etc.) just send the Testo analyser handheld instrument
      How do I send it?
      Package the instrument in a suitable box with some wrapping for protection (shoe box, newspaper etc.)

      Include your contact details in the package;
      Your name
      Company name (if appropriate)
      Your full postal address
      Your mobile telephone number
      Your email address

      Address the package to:
      JMW Limited
      Warwick House
      Perry Road
      Harlow
      CM18 7NF

      Or download a service return form

      JMW recommend that you send your flue gas analyser using a suitably insured, recorded delivery service.
      (Note: Alkaline metal or nickel metal hydride (NiMH) batteries used in the Testo thermal printer should not be sent by Royal Mail, see .... Remove any batteries from the printer before posting and retain for later use.)
      DO NOT include payment at this time
      On receipt the instrument will be examined and a detailed, free of charge, no obligation quotation emailed for your approval prior to any costs being incurred
      A text message will be sent advising you of the emailed quotation
      Pick up the phone to discuss the quotation and, if you are happy to pay by card
      (Cheques and payment by BACS are also accepted)
      On completion your instrument will be returned via DPD Local who will contact you by email and text to advise you of the delivery date and time (within one hour), they will also offer you various delivery options
Anton approved calibration calibration Testo approved calibration TPI approved calibration

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