ACCU-SAFE: 100% Precision – 0% Mercury

Accu safe Stempel gruen kEven in the digital era the analog network-independent precision glass thermometer remains an important component of quality assurance in fields in which the temperature has to be measured precisely and reliably.

Regulations at the EU level will in future, however, severely restrict the utilization and maintenance of instruments containing mercury.

With the ACCU-SAFE series from Ludwig Schneider you can continue to measure the temperature with high precision, reliably and furthermore in an environmentally-friendly manner. As the sole German manufacturer and service provider we offer a large number of our measuring instruments with traceable DAkkS-calibration certificate from a single source.

 mercuryfree 2015

Detailed product information is available in our new ACCU-SAFE catalogue.

Download ACCU-SAFE-catalogue

New Product-Catalogue

ar ometer en 2015Hydrometers from Ludwig Schneider stands for the highest precision and exactness.
Convince yourselve:

  • Up to 0.0001 g/cm³ resolution
  • With or without integrated thermometer
  • Environmentally friendly, mercuree free filling
  • Hydrometer made of Plastic (PC) HACCP proof
  • Many special types for special applications
  • Measurement accuracy within tolerances specified
    by the PTB
  • On request, also available with internationally
    recognised DAkkS certificate (ILAC)



Statutory changes to the calibration regulations 1.1.2015

The regulations of the office of metrology and calibration, which legally entered into force on 1 January 2015, also affect some of our liquid-in-glass thermometers and hydrometers, which are used in equipment requiring official calibration.

Contents of the regulation:

The previous initial calibration is replaced by a conformity evaluation with corresponding documentation from the respective, authorised agencies. A compulsory follow-up and repeat calibration can only be performed if there is a previous conformity evaluation for the respective measuring instrument. A list of the future conformity evaluations is available at

Based on this statutory ruling and the resulting very short transition period, neither the respective assessment body nor we are able to issue a binding list of charges or make any statements on delivery times.

As an alternative, we offer our service of DAkkS-calibrations.

Your advantages:

  • accreditation of the temperature and density measurement categories in compliance with DIN EN ISO/IEC 17025:2005.
  • nationally and internationally recognized for 25 years
  • traceable DAkkS calibrations
  • moderate and stable pricing
  • short and reliable delivery times
  • free-of-charge on-line management system of testing equipment

Hydrometer with Thermometer Mercury free

araeometer blue lsw 2Hydrometers manufactured from Ludwig Schneider are available environmental safe with Mercury free blue filling. This new products are manufactured according ASTM E2995-14 standard and are available in 24 different measuring range.
As manufacturer Ludwig Schneider extend the product range of mercury free measuring devises for temperature and density.  Following new Hydrometer products are available:


  • Reference temperature: 60 °F
  • Scale Units: 0.1 °API
  • With thermometer: 0..+150 °F in 2 °F 
  • Range: -6 to 101 °API


  • Reference temperature: 15  °C
  • Scale units:  0.5 kg/m3
  • With thermometer -20 +65 °C in 1°C
  • Range: 600 to 1100 kg/m3


Hydrometers made of plastics

plastik ar ometer k1We are the only German manufacturer producing both precision glass and plastic hydrometers. These are suitable for applications in food, pharmaceutical and cosmetic industries. DAkkS or works certificates on request.


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