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Torrey Pines Scientific EchoTherm™ HP51 and HS51 Large Capacity Simple Digital Hot Plates and Stirring Hot Plates

Heat, stir and time accurately with easy to use, fully featured, 12” x 12” surface large capacity hot plates and stirring hot plates.

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

HP51 $1,430.00
HP51A $1,470.00
HS51 $1,520.00
HS51A $1,570.00


  • Extremely easy use by anyone in your lab
  • Two memory buttons for storing your favorite settings for heater and stirrer for instant, one-button recall and use
  • Platinum RTD temperature measurement for precision and accuracy
  • Solid ceramic heater top for quick heating on a flat, white, chemically resistant surface. Milled flat cast aluminum top also available
  • Temperature range from room temperature to 450C
  • Cast aluminum framed ceramic heater top edges stay cooler to prevent burns
  • PID temperature control for exact, tight sample control of plate or solution
  • Timer goes up to 99 hours, 59 minutes, 59 seconds with settable Auto-Off for exactly timed sample preparation
  • Electronic calibration stored in chip. No batteries to replace
  • 12” (30.48 cm) ceramic glass or aluminum tops
  • Strong motor and magnet for stirring most samples
  • Stir 10 liters of aqueous solution
  • Full featured digital display for checking all parameters instantly
  • Fused for safety
  • ETL, CSA and CE certified
  • RS232 interface for control or for data collection on a computer

Product Description:

The EchoTherm HP51 and HS51 are designed to be the easiest to use and most accurate fully featured hot plates and stirring hot plates in the world. Temperature measurement of a solution is accurate to 1% over the entire temperature range using a 100 ohm platinum RTD sensor and measurement system.

Calibration of temperature is electronic and stored in memory. The calibration is set at the factory but can be done easily in the field using the probe calibration kit offered as an accessory.

The chassis on both models is cast aluminum designed to keep spills and heat out of the electronics. They are coated with chemically resistant epoxy based paint for durability.

Product Specification:

Hot Plate:
Dimensions 12” (30.48 cm) x 12” (30.48 cm)
Maximum temperature of the plate surface ceramic top: 450°C; cast aluminum top: 450°C
Temperature control type PID
Temperature accuracy 1%
Temperature regulation, solution or plate ±1°C
Heater power in watts ceramic top: 1400 watts; aluminum top: 1400 watts
Temperature Measurement:
Platinum RTD 100 ohm, in plate and in probe
Range ceramic top: 0–450°C; aluminum top: 0–450°C
Readability 1°C
Speed range unloaded 100–1500 rpm
Capacity 10 liters water
Readability 10 rpm
Settability nearest 10 rpm
Available in 100, 115 and 230 VAC, 50/60 Hz
Ceramic top 100 and 115 VAC, 12 amp; 230 VAC, 6 amp
Aluminum top 100 and 115 VAC, 12 amp; 230 VAC, 6 amp
Fused Yes
Line cord Detachable, 6 foot (1.8 meter), three-wire grounded
Dimensions, unpacked:
Ceramic top 12.5” (31.75 cm) wide, 18.0” (45.7 cm) deep without line cord plugged in, 4.5” (11.43 cm) high
Aluminum top 12.5” (31.75 cm) wide, 18.0” (45.7 cm) deep without line cord plugged in, 4.5” (11.43 cm) high
Dimensions, packed
Ceramic and aluminum tops 20.0” (50.8 cm) by 16.0” (40.64 cm) by 9.0” (22.86 cm)
Weight, unpacked
Ceramic top 18 lbs (8.4 kg)
Aluminum top 19 lbs (8.6 kg)
Weight, packed
Ceramic top 20 lbs (9.0 kg)
Aluminum top 21 lbs (9.5 kg)

Accessories Available:

HS30-600 Probe, Immersion, 6” stainless steel $115.00
HS30-601 Probe, Immersion, 10” stainless steel (supplied with unit) $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, immersion, 4” stainless steel $110.00
HS30-700 Temperature Probe Calibration Kit $70.00
HS30-800 Plate and Probe Calibration Kit $460.00