The company Jola Spezialschalter K. Mattil & Co. KG is a medium-sized company based on Lambrecht (Palatinate) which today employs around 70 people. Jola was founded in 1952 as a sister company of the former Tuchfabrik Gebrüder Haas; its purpose was to develop and market a company invention - a water-tight limit switch - as well as a level control based on the same principle. Today, Jola is a well-known manufacturer in the area of level control and leakage detection for liquids.

Our product range focuses on the following types of equipment:

• floating switches and float switches,
• magnetically controlled immersion probes,
• magnetic switches and level controllers equipped with magnetic switches,
• continuous liquid level indicators based on the float principle,
• conductive level controls,
• capacitive level controls and liquid level indicators,
• pneumatic level controls and liquid level indicators,
• level measurement and control units for rainwater utilisation systems,
• leakage detectors for conductive and non-conductive liquids, also for the detection of oil on water,
• units for detection of moisture on cooling ceilings and for cooling ceiling control,
• limit switches
• and a wide range of accessories such as contact protection relays, intrinsically safe transistor relays, alarm switching units, pump controllers etc.

Most Jola products carry the VDE symbol, all Jola products for use in potentially explosive atmospheres have an EC type examination certificate, and many have been granted design approval in accordance with the water laws.

The entire company is certified in accordance with DIN EN ISO 9001:2000.

Jola has also a sales subsidiary in France:

• Jola SARL in Romainville (founded in 1986)
  

Authorized dealers market the Jola product range in all other European countries and in several non-European countries.