Fisher Isotemp 145 Dry Bath Incubator Heating Block 25-125°C Lab Benchtop

Fisher Isotemp 145 Dry Bath Incubator Heating Block 25-125°C Lab Benchtop

The Fisher Scientific Isotemp Model 145 is a benchtop dry bath incubator designed for controlled sample heating in laboratory settings. It uses a heated aluminum block — rather than a liquid bath — to maintain precise temperatures across the 25°C to 125°C range. Temperature is set via a front-panel rotary dial, with separate Power and Heat indicator lamps showing operating status.

Specifications & What's Included

• Brand: Fisher Scientific
• Series: Isotemp
• Model: 145
• Type: Dry Bath Incubator / Block Heater
• Temperature Range: 25°C to 125°C
• Temperature Control: Front-panel rotary dial
• Indicators: POWER and HEAT indicator lamps (front panel)
• Power Switch: ON/OFF rocker-style button (damaged but functional — see condition notes)
• Bath Well: Open-top stainless steel, accepts interchangeable block inserts
• Housing: Wood-grain laminate front panel; stainless steel top and rear chassis
• Power: Standard 3-prong AC power cord (attached)
• Form Factor: Benchtop
• Includes: Unit and power cord only — no block inserts included

Applications

Dry bath incubators like the Fisher Isotemp 145 are standard benchtop instruments in biology, biochemistry, and clinical labs. They are used for incubating microtubes and test tubes at a stable set temperature — common tasks include enzyme reactions, DNA denaturation and annealing, protein digestion, and sample warm-up or equilibration. Because there is no liquid involved, they are simpler and cleaner to use than water baths, and the interchangeable block insert system allows the same unit to accommodate different tube sizes (e.g. 0.5 mL, 1.5 mL, 15 mL conical). The Isotemp 145 dates from the 1970s–early 1980s era of Fisher Scientific benchtop lab equipment and remains a usable workhorse for basic heating tasks. Block inserts for this unit are available separately through Fisher Scientific and compatible suppliers.