TTi (Thurlby Thandar Instruments) is a leading manufacturer of electronic test and measurement instruments. These products are sold throughout the world via carefully selected distributors and agents in each country. We are located in Huntingdon near to the famous university city of Cambridge, within one of the high technology areas of the United Kingdom.
All TTi products are designed and manufactured at our Huntingdon facility. The portfolio of products from Thurlby Thandar Instruments (TTi) and Aim Instruments is grouped under the overall banner of Aim-TTi.
Company History (TTi)
Thurlby Thandar instruments Ltd dates from the late 1970s when two companies, Thurlby Electronics Ltd and Thandar Electronics Ltd (formerly Sinclair) were both manufacturing electronic test equipment in Cambridgeshire, England. The two companies merged to form Thurlby Thandar Instruments Ltd (TTI) in 1989. The Aim brand was added when TTi products were introduced to the USA market. All products now sell under the Aim-TTi brand.
Aim-TTi are best known for being innovative leaders in PowerFlex, multi-range and precision power supplies. The full range of products extends to function and arbitrary generators, RF spectrum analyzers and generators and precision measurement instruments.
We believe that our tag line of “Measurably Better Value” represents our aim of producing high quality instruments at competitive prices, supported by low cost of ownership through great reliability and factory support.
Contact Information
Aim and Thurlby Thandar Instruments,Glebe Rd, Huntingdon,
Cambridgeshire,
PE29 7DR,
United Kingdom
Tel: +44 (0)1480 412451
Fax: +44 (0)1480 450409
Email: sales@aimtti.com
Office Hours: 08:00 to 17:00 Monday to Thursday, 08:00 - 12:00 Friday, UK time.
EU Authorized Representative: AIIATEL, Johann-Wiedeman Straẞe 20, DE-86609, Donauwörth, Germany
Directions
Get directions in Google Maps - opens Google Maps web page with the destination set to Aim-TTi's geographic location.GPS Link: 52.3440232,-0.1836769 - shows the location of Aim-TTi in devices that support a geo URI tag.
By car:
Aim-TTi is located in Huntingdon which is close to the junction of the A1 and A14/A1307 to the north-west of Cambridge. There have been major changes to the main roads in the area since 2020. Please check that your GPS is up to date and navigate to post code PE29 7DR. This will take you to St. Peters Road, Huntingdon and on to Glebe Road which is a service road which runs parallel to St. Peters Road (on the east side) on which the TTi building is clearly visible at the southern end.By Train:
Huntingdon station is on the East Coast Main Line and is easily reached from London King's Cross station. Trains are frequent, typically two every hour. The journey time is around one hour from London. On arrival, taxis from the station are readily available and take around five minutes to reach the TTi building.Airports:
Huntingdon is around 100km north of London and around 120km east of Birmingham. The main airport options are:- London Heathrow: about an hour and a half by car if the M25 London Orbital road is moving, or 2 hours by train with two changes via central London
- London Stansted: about an hour by car or 2 hours by train with either one or two changes
- London Gatwick: about 2½ hours by car or 2 hours by train (direct)
- Luton: about an hour by car or 2½ hours by train and bus with two changes
- Birmingham: about 1½ hours by car or 2¾ hours by train via central London
Company Information
Thurlby Thandar Instruments Limited is a Private Limited Company registered in England and Wales, company number 02434384
Registered Address: 2 Glebe Road, Huntingdon, Cambridgeshire, PE29 7DR, England
TTi is an ISO9001 approved company.
All Aim-TTi products are designed and manufactured using documented quality procedures and fully traceable standards.
Cert. No. FM20695
Standard: BS EN IS09001:2015
Company Domain Information
Thurlby Thandar Instruments Limited has owned and used numerous domain names over the years which can make it difficult to determine which are genuine when receiving emails or visiting websites. The only domains we currently use to send emails are aimtti.com, tti.co.uk, tti-test.com and ttid.co.uk.For websites, historically we have used more than 20 domain names, but currently the only public facing domains that we are actively using are aimtti.com and ttid.co.uk and their subdomains (welcome.aimtti.com, resources.aimtti.com etc.). The legacy sites aim-instruments.com and tti-power.co.uk are both still active but minimally maintained. All other genuine Aim-TTi domains should either redirect to aimtti.com or ttid.co.uk or their subdomains. Anything else that does not do so is not an Aim-TTi website, but may be a distributor or reseller site outside our control. Last Updated April 2026.