Start typing to do your search

CH3-150 Combitherm-2 dry block heating/cooling system

The Grant-bio CH3-150 Combitherm-2 dry block heating cooling system is specially designed to thermostabilise materials at temperatures from –3°C to +150°C according to methods of analysis.

  • Stability: ±0.1ºC
  • Independently regulated heating and cooling blocks in the same unit
  • Digital timer with sound alarm: 1 min to 99 h 59 min (increment 1 min)
  • User adjustable programmes (temperature and time): 16 (heating) + 16 (cooling)
  • Digital temperature control for optimum precision
  • Temperature Calibration Function
  • Protective lid

The CH3-150 has seven interchangeable blocks available. Custom blocks available on request.


Life-science - storing restriction enzymes, nick translation, ligation reactions, restriction digests, protein solubilisation for PAGE, warm incubation of microcentrifuge tubes for hybridisation, enzyme reactions and deactivations

Clinical - cooling blood samples prior to coagulation testing. acylcarnitines derivatisation, MRSA and PBP2 latex testing, heating flush/media used in egg recovery, fertility to keep test tubes at correct temperature during egg collection

Incubating samples at set temperatures, heating block for boiling of solutions in tubes

Life-science-cell digestion, DNA/RNA extraction, post sequencing PCT clean-up-dry down step, boiling in vitro DNA RNA/ protein samples, incubating invitro reactions/digestions, extraction of DNA for real-time PCR analysis, denaturing nucleic acid and protein samples

Industrial - digestion of environmental samples for chemical oxygen demand analysis, soil digests, maintaining temperatures


Dimensions (h x d x w)220 x 285 x 295mm
Heating block temperature range+25 to +150°C
Heating block temperature control rangeAmbient +5 to +150°C
Heating block setting resolution1°C
Heating block stability±0.1°C
Cooling block temperature range–3 to +20°C
Cooling block temperature control rangeAmbient -23 to ambient -5°C
Cooling block setting resolution0.1°C
Cooling block stability±0.1°C
Digital timer with sound alarm1 min–99 hrs 59 min (increment 1 min)
User adjustable programs (temperature and time)16 (heating) + 16 (cooling)
Nominal operating voltage230V only (50/60Hz)


Combitherm Dry Block – Options and Accessories

Part NoDescription
B2-50Interchangeable block for 2 x Ø 48mm tubes, depth 58mm
B10-13Interchangeable block for 10 x Ø 13mm tubes, flat bottom, depth 30mm
B10-16Interchangeable block for 10 x Ø 16mm tubes, depth 56mm
B5-29Interchangeable block for 5 x Ø 29mm tubes, flat bottom, depth 40mm
B6-25Interchangeable block for 6 x Ø 25mm tubes, depth 40mm
B18-12Interchangeable block for 18 x Ø 12mm tubes, round bottom, depth 58mm
B23-1.5Interchangeable block for 23 x 1.5ml micro tubes

External Temperature Probes

Part No


QBEPStandard probe for in-sample or in-block temperature control; encased in stainless steel sheath, ø3mm x 30mm long, with 350mm of cable.
QBEP-WMShort-form probe for in-sample or in-block temperature control; encased in stainless steel sheath, ø3mm x 14mm long, with 350mm of cable.

Related products

QB Series Dry Block Heating Systems
BTD Dry Block Heater for Microtubes
BT5D High Temperature Dry Block Heater
PCH Series Personal Benchtop Cooler / Heater