Interested in Ametek, Hart or Isotech Equipment? Contact us

Click here to go to our Products page

Latest News

Calserv offers a low cost ice-point calibration bath

Calserv offers calibration of Specials

Calserv offers averaging probe calibration

Calserv can offer UKAS calibration down to -90°C and at -196°C

Calserv offers IRTD KAYE probe calibration

























Calserv Services & Products Brief

Calserv (Calibration Services Ltd) has years of experience at your disposal, please contact us for further information on any of the items below. 

As we believe that getting better never stops we will be updating this area with our own improvements, developments and extensions to schedule.


Calserv seasonal lab deals


UKAS Temperature Calibration

From Liquid Nitrogen to 1300 °C, check our latest schedule for our uncertainties of measurement.  Your equipment is treated as we would want ours to be.



Advice on all aspects of being a UKAS lab. from complete accreditation packages to help with clearing non-compliances


Help with compiling Quality Manuals to the approved standard; inter-lab audits; expert advice on quality dispute resolution.

Uncertainty Budgets

Produce an uncertainty budget as our expert working lab. does – virtually no statistics!  Logical, step-by-step worked examples.


Our Quality Manager’s pet subject, see her eyes light up!  If you have questions over compliancy to ASTM E220, AMS 2750 as well as ISO/IEC 17025 (2005) contact us


Refurbishment and validation or new product validation, UKAS certified equipment cals.

UKAS On-Site calibrations

Surveys of chambers, furnaces, fridges, freezers.  Comprehensive certificates produced with colour graphs and charts

Training Courses

All levels of experience catered for, either here in the Snowdonia National Park or at your site

Products (as supplied to various national bodies and authorities)

Standard Thermocouples

Fixed and demountable, with or without cold junctions, full range of UKAS cals available

Semi Standard PRTs

Working Standard

Vibration Resistant

Liquid Nitrogen



Range of sizes suitable for applications from freezers to humidity chambers, on 3 mm or 2.2 mm cable, with a UKAS cal. if required


Handsome is as handsome does.  This box of tricks can give you 5 mK at zero for £450.00 (plus P+P + VAT).

Averaging Thermometers (long PRTs with or without transmitters attached)

Calserv is the only UKAS lab that can calibrate Resistance Bulb or Averaging Thermometers.  Calibration of existing models or supply of the updated version.


Any makes or uses, e.g. PTFE suitable for LN, MIMS, batch wire etc, UKAS cals available on all. 

Hand-held Indicator units

DTI with either Thermocouple or PT100, UKAS cal to your points, ready to put to work.  SEE LAB DEALS

Engineered Products

Metal inserts for liquid baths & fluidised furnaces

Ceramic inserts

Blocks – deep drilled if required

Fixed Point cell holders

Logger holders

Re-entrant tubes

New design work and problem solving a speciality


Manufactured Products

Calserv is an agent for most of the leading manufacturers, call us for impartial product advice and price.


Calibration Services (Calserv) Ltd, Penllwyn, Llanfair Caereinion, Welshpool, Powys, SY21 0HY. Tel: 07876 824678
Company registration number: 6045752 company registered in England & Wales.
VAT registration number: GB 549 7197 89. UKAS lab number 0794
© Copyright 2008. All rights reserved. All other copyrights and trademarks are recognised.