Dry Block Temperature Calibrators

Accurate Thermal Systems manufacturers and distributes a range of Dry Block temperature calibrators and Micro Liquid calibration baths that are used for calibration of many types of temperature sensors and systems including liquid in glass thermometers, thermocouples, RTD’s, PRT’s, thermal switches, temperature transmitters, dial thermometers, bi-metal thermometers, temperature controllers, hand held indicators, IR thermometers, temperature loggers, thermistors and many other types of sensors. These systems offer temperature ranges from -30 to 650°C and are good for portable field use or on a bench in the laboratory. All units include NIST traceable calibration certificates that are ISO 17025 compliant. Fully accredited ISO17025 calibrations are available.

ThermCal Series Calibrators

The ThermCal series was designed and manufactured to be accurate and stable while being light weight for field or laboratory use. They are economically priced with specifications and included accessories not typically found at this price. In the box along with the unit is a multiwell or single well aluminum insert, insert extractor, power cable, carrying strap, instruction manual and traceable calibration certificate with data and calibration label on the unit. Both ThermCal models are CE marked for safety.


Included accessories (instruction manual and calibration certificate not shown)
  • Laboratory grade performance at an economical price
  • Rugged powder coated case
  • Polished stainless steel top and bottom
  • Lightweight, ThermCal400 10 lbs with insert, ThermCal130 15 lbs
  • Includes multiwell insert (ThermCal400) and 1/4" reference hole with choice of single well insert (ThermCal130)
  • Includes traceable calibration with data and calibration label
  • Backed by 25 years of calibrator design and manufacturing experience
  • Advanced all digital controller with large bright display
  • Made in the USA

Models and Specifications
Model ThermCal400 ThermCal130
Temperature range ambient +5 to 450ºC (850ºF)

-25°C (-13°F) to 130°C (266°F)

Accuracy ±0.4°C


Stability ±0.05°C


Well to well uniformity 0.015 at 200ºC, 0.025 at 200ºC (same size wells) N/A
Heat up time ambient to max 12 minutes 3.5 minutes
Cool down time-max to 100°C 20 minutes N/A
Cool down time 130 to 20°C N/A 2.5 minutes
Cool down time ambient to  -20°C N/A 3 minutes
Display resolution 0.1°C or F  0.1°C or F
Overall dimensions L/W/H (in) 8/8/8


Power 900 watts

150 watts

Mains voltage 120 or 240 fixed 120 or 240 fixed
Catalog number ATS3010 120 volt, ATS3020 240 volt

ATS3080 120 volt, ATS3081 240 volt

Weight with insert lbs 10  15
Warranty 2 years  2 years
ThermCal 400 Optional Accessories
Description Catalog #
Insert 1/8", 3/16", 1/4", 5/16" & 3/8" diameter wells ATS3041 “Included with the unit"
Insert 5 x 1/4" diameter wells ATS3043
Insert 2 x 1/4" & 2 x 3/8" diameter wells ATS3044
Insert 2 x 1/4" & 2 x 1/2" diameter wells ATS3045
Insert 1 x 1/4" diameter wells ATS3046
Insert blank ATS3047
Insert 1 x 9/16" & 1 x 1/4" diameter wells ATS3048
Insert 1 x 5/8" & 1 x 1/4" diameter wells ATS3049
Insert 1 x 11/16" & 1 x 1/4" diameter wells ATS3050
Insert 1 x 3/4" & 1 x 1/4" diameter wells ATS3051
Carrying case ATS3052
Don’t see a size for your probes, no problem we can drill one out for any size just call us!
ThermCal 130 Optional Accessories
Description Catalog #
Insert 1 X 1/8" diameter well ATS3074
Insert 1 x 3/16" diameter well ATS3075
Insert 1 x 1/4" diameter well ATS3076
Insert 1 x 5/16" diameter well ATS3077
Insert 1 x 3/8" diameter well ATS3078
Soft sided carrying case ATS3052
Don’t see a size for your probes, no problem we can drill one out for any size just call us! Alternatively you can easily drill one onsite to fit your needs.

Model ThermCal400 brochure (PDF Download 554Kb)

Model ThermCal130 brochure (PDF Download 453Kb)