Immersion Thermostats

JP Selecta immersion thermostats: PID regulation with ±0.01 °C precision. Heating and cooling.

JP Selecta laboratory thermostats with ±0.01 °C precision: PID control, ITS-90 traceable Pt100 probes and −30 °C to +200 °C range. DIN 12876 compliant.

Product families (11)

JP Selecta Laboratory Thermostats

JP Selecta laboratory thermostats cover immersion, external circulation and dry-block applications with accuracies of up to ±0.01 °C across a working range from −30 °C to +200 °C.

Our units integrate high-efficiency PID controllers, ITS-90 traceable Pt100 probes and powerful circulation pumps that deliver uniform temperature across the entire treated volume, complying with DIN 12876 and IEC 61010.

Laboratory thermostats catalogue

Our thermostat range covers complete solutions: from immersion units to fit user-supplied baths through to refrigerated recirculators for closed external circuits.

Immersion thermostats

Modular, stand-alone units to fit any bath (metal or acrylic) up to 20 or 27 litres. Ranges from ambient +5 °C to 200 °C with 0.1 °C resolution.

Available models: Termotronic 100 (digital), Digiterm S-150 (microprocessor-controlled digital) and Digiterm TFT-200 (colour touchscreen).

Built-in components: Pt100 probes, long-life INCOLOY heating elements and internal or external circulation pumps.

Safety: DIN 12876 compliant safety cut-off and low-liquid float protection.

Dry-block thermostats

Dry thermostat systems that eliminate evaporation and contamination risks by removing liquid from the process. Digital and touchscreen electronic control up to 200 °C.

Models: Tembloc and Multiplaces for high temperature, TRM-4 thermoshakers for microplates and TR100-G for tubes.

Configuration: interchangeable DURAL alloy blocks for different tube diameters, microplates and cuvettes.

Shaking thermostatic baths

Assemblies combining the Digiterm control modules with stamped AISI 304 stainless-steel baths of 20 and 27 litres.

Browse the full range of thermostatic baths.

Circulation cryothermostats

Compact refrigerated systems (CFC-free) for working below ambient, with a −30 °C to +200 °C range, outstanding stability and pumping capacity up to 20 L/min.

Models: Frigiterm-TFT-10, Frigiterm-TFT-30 and the powerful GD-30 unit.

Control and connectivity: TFT touchscreens with digital readout and RS-232, USB and Ethernet ports.

Circulation ultra-thermostats

Dedicated heating solution with external circulation for high temperatures (Ultraterm-TFT-200).

Regulation from +5 °C to 200 °C with an 8-litre internal bath and 12 L/min pump.

Optional refrigeration coil to temper quickly when connected to mains water.

Why choose JP Selecta thermostats

Our thermostats are engineered for maximum accuracy and thermal stability, integrating high-efficiency PID controllers, ITS-90 traceable Pt100 probes and powerful circulation pumps that guarantee uniform temperature throughout the bath.

This delivers stability down to ±0.01 °C and ±0.1 °C while complying with DIN 12876 and IEC 61010-1 / 61010-2-010. Solutions are available for every application thanks to a broad working range (−30 °C to +200 °C) with immersion units, external circulation and refrigerated cryothermostats, supported by a wide range of accessories and clamping systems.

As a European manufacturer certified to ISO 9001, ISO 14001 and ISO 13485, we provide official technical service, multi-point traceable calibration and the documentation support needed for laboratories operating under ISO/IEC 17025.

Request a personalised quote

Our team will help you select the right thermostat based on temperature range, bath volume and required precision.

If you need a traceable calibration certificate or support for qualification in an accredited laboratory, please let us know when contacting us.

Request a no-obligation quote.

Frequently asked questions

What warranty do JP Selecta thermostats carry?

All JP Selecta thermostats include a 2-year warranty, official technical service in Spain and an international network of certified distributors. Original spare parts and ongoing technical support are available.

Do you offer calibration services for thermostats?

Yes. JP Selecta provides certified calibration with international traceability (ISO 17025) for all its thermostats. The service can be performed on-site or at our facilities.

How can I request a quote?

You can request a quote through the contact form on our website, by email (selecta@jpselecta.es) or by phoning our commercial team on +34 93 770 08 77. We offer personalised advice.

What is the difference between an immersion thermostat and a circulation thermostat?

An immersion thermostat is a head unit designed to be clamped and submerged in open baths and tanks, homogenising the temperature of the liquid inside through its pump. A circulation thermostat (or recirculator) is designed to send that heat-transfer fluid to an external device in a closed circuit —such as a reactor jacket or a viscometer— controlling the temperature remotely.

Is a laboratory thermostat the same as a thermostatic bath?

No. The thermostat is the control unit (which includes the digital panel, heating element and stirring pump). The thermostatic bath is the complete solution integrating both the bath or tank and the thermostatic unit that regulates the heat of the fluid inside.

For which applications is a refrigerated thermostat needed?

Refrigerated cryothermostats are essential when setting temperatures below ambient or when the residual heat from a chemical or enzymatic reaction must be dissipated rapidly, feeding condensers or cooling circuits down to −30 °C.

What precision does a JP Selecta thermostat offer versus a conventional bath?

An advanced thermostat provides higher stability (accuracies down to hundredths of a degree) and 0.1 °C resolution. Whereas a conventional bath heats passively from the bottom (potentially creating cold spots), a thermostat with a recirculation pump constantly stirs the fluid, ensuring uniform temperature across the entire vessel.

Are they valid for laboratories accredited under ISO/IEC 17025?

Yes. Our equipment is designed to comply with demanding standards such as DIN 12876. The Pt100 probe design and PID control enable multi-point calibration procedures that exceed the qualification requirements set by laboratories certified under ISO/IEC 17025.

What does traceability to ITS-90 mean?

ITS-90 refers to the International Temperature Scale of 1990. It means the probes and measurements of the equipment are calibrated through an unbroken documented chain of comparisons linked to standards endorsed by this international scale. It is the highest guarantee that the value measured by your thermostat matches the actual temperature universally and precisely.