SKU Tank Capacity (L) Type of Tank Temperature Range Price In Stock Buy
Grant Instruments Optima TC120 Heated Circulating Bath TC120-ST5 5 Stainless Steel ambient +15°C to 120°C
3 + -
Grant Instruments Optima TC120 Heated Circulating Bath TC120-ST12 12 Stainless Steel 0°C* to 120°C
25 + -
Grant Instruments Optima TC120 Heated Circulating Bath TC120-ST18 18 Stainless Steel 0°C* to 120°C
12 + -
Grant Instruments Optima TC120 Heated Circulating Bath TC120-ST26 26 Stainless Steel -15°C* to 120°C
9 + -
Grant Instruments Optima TC120 Heated Circulating Bath TC120-ST38 38 Stainless Steel -15°C* to 120°C
2 + -

The Grant TC120 series of digital heating circulating baths for general applications require precise temperature control in the range of -15°C to 120°C. The TC120 heating circulator can be used in combination with any Grant stainless steel or plastic tank or with a T-Clamp for independent use of virtually any vertical-sided tank.

  • Cooling/heating range -15°C to 120°C
  • Stability ±0.05ºC / Uniformity  ±0.1ºC
  • Tank options 5L to 38L
  • Simple, intuitive user interface: dial and two function buttons
  • 3 programmable temperature presets
  • Clear, bright 4-digit LED display
  • Low-level protection and adjustable temperature cut out
  • Countdown timer with audible alarm



  • Clinical, Microbiology, and Pathology labs – media tempering, thawing, and incubating samples
  • University research – temperature control of spectrophotometers and refractometers and jacketed vessels
  • Industrial labs – temperature probe calibration, water analysis, QC testing product, petrochemical testing, material testing, milk sample testing



Dimensions (h x d x w) 333 x 172 x 141mm
Stability (DIN 12876) @70ºC 0.05±ºC
Uniformity (DIN 12876) @70ºC 0.1±ºC
Setting resolution 0.1ºC
Display 4 digit LED
Timer function 1 minutes to 99 hours 59 minutes
No. of temperature presets 3
Re-calibration points 2
Socket for external probe (TXPEP, TXSEP)
Communications interface  
Safety – over temperature Adjustable cut-out
Fluid level – float
Language options
Alarms (can be configured to switch a relay) High (no relay)
Heater power – 230V 1290W
Heater power – 120V1440W 1440W
Electrical power – 230V 1400 (50-60Hz)
Electrical power – 120V 1500 (50-60Hz)
Height above tank rim 20mm
Depth below tank rim 135mm
Maximum pressure (water) 210mbar
Maximum flow (water) 16L/min
Pump connector 6mm bore Fits 9mm inner diameter tubing
Pump connector 11mm bore Fits 15mm inner diameter tubing
Weight 2.3kg
    • SKU
    • Commodity Codes
  • Temperature range (°C)
    Ambient +5 to 99°C
  • Tank size (L)
  • Stability
  • Working area l x w (mm)
    210 x 280
  • Manufacturer
    Grant Instruments (Cambridge) Ltd
  • Country of Origin
    United Kingdom
  • Tank Capacity (L)
    5, 12, 18, 26, 38
  • Type of Tank
    Plastic, Stainless Steel
  • Temperature Range
    ambient +15°C to 99°C, ambient +5°C to 99°C, ambient +15°C to 120°C, 0°C* to 120°C, -15°C* to 120°C