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Torrey Pines Scientific EchoTherm™ HP40 and HS40 Fully Programmable Digital Hot Plates and Stirring Hot Plates

When you cannot be in two places at once, these equipment are ideal for complete walk-away heating and stirring applications.

HP in model number = hot plate
HS in model number = stirring hot plate

HP40 $1,400.00
HP40A $1,430.00
HS40 $1,520.00
HS40A $1,550.00


  • 10-program memory stored in CMOS. No batteries required
  • Each program can be 10 steps, where each step includes a temperature, stirring speed, time and heating rate
  • Repeat any program 1–98 times automatically. Infinite repeats settable
  • Programmable and non-programmable operation
  • Platinum RTD temperature measurement for ±1% accuracy
  • Solid ceramic heater top for quick heating on a flat, white, chemically resistant surface
  • Milled-flat cast aluminum top available for use with solids on the plate surface (HP40A and HS40A)
  • Temperature ramping for exact heating and cooling rates
  • PID temperature control to 1°C on plate surface or solution with accessory probe
  • Stir up to 2 liters of aqueous solutions from 100–1500 rpm (HS40 and HS40A)
  • Timer goes up to 99 hours, 59 minutes, 59 seconds with user settable Auto-Off
  • Electronic calibration stored in CMOS
  • RS232 interface for control or recording data on a computer
  • Custom display of all parameters all the time
  • 12-month warranty
  • UL, CSA and CE compliant

Product Description:

EchoTherm™ HP40 and HS40 Fully Programmable Digital Hot Plates and Digital Stirring Hot Plates are the most advanced and easy-to-use units available. In manual operation, simply select the parameter to be set and scroll to the value needed. The unit will do the rest. In the programmable mode, routines can be stored for instant recall and use. The stored routine will run automatically, without attention, and exactly the same time after time.

Programs can be simple or complex depending upon the need. Multiple temperatures, temperature ramp rates, stirring speeds and timed events can be stored. When run, the unit monitors the program to be sure it runs exactly as written. Complete walk-away automation.

The chart above shows a typical program that can be stored in memory and run at any time. The program can also be instructed to repeat itself from 1 to 98 times, or infinitely if wanted.

Product Specification:

Memory capacity 10 programs
Individual Program Capacity 10 steps
Repeat a program automatically 1 to 98 times or infinitely
Temperature Measurement:
Platinum RTD 100 ohm at zero in plate and in probe
Range 0–450°C on ceramic plate; 0–450°C on aluminum plate
Readability 1°C
Hot Plate:
Dimensions 8” (20.3 cm) x 8” (20.3 cm)
Maximum plate temperature Ceramic: 450°C

Aluminum: 450°C

Temperature control type PID
Temperature accuracy 1% ±
Temp stability 1°C
Heater power in watts 600 watts
Speed range unloaded 100–1500 rpm
Readability 1 rpm
Capacity 2 liters water
Settability nearest 10 rpm
Available in 100, 115 and 230 VAC, 50/60 Hz, 600 watts
Fused both high and neutral lines
Line cord Detachable, 6 foot (1.8 meter), three-wire grounded
Dimensions unpacked
Width 9.125” (23.18 cm)
Depth 15.75” (40.01 cm)
Height 4.75” (12.07 cm)
Dimensions packed
Length 18.25” (46.36 cm)
Height 9.5” (24.13 cm)
Width 12.25” (31.12 cm)
Weight, unpacked 12 lbs (5.4 kg)
Weight packed for shipment 14 lbs (6.3 kg)

Accessories Available:

HS30-600 Probe, Immersion, 6” stainless steel $115.00
HS30-601 Probe, Immersion, 10” stainless steel $140.00
HS30-602 Probe, Immersion, 6” ptfe $125.00
HS30-603 Probe, Immersion, 6” solid glass $205.00
HS30-604 Probe, immersion, 9” solid glass $270.00
HS50-600 Probe, 4” stainless steel $110.00
HS30-700 Temperature Probe Calibration Kit $70.00
HS30-800 Plate and Probe Calibration Kit $460.00


Additional Images (click to enlarge)