The original Plantar Test for thermal stimulation (Hargreaves Apparatus)
Code: 37370

The original Plantar Test for thermal stimulation (Hargreaves Apparatus)

The Plantar Test Instrument (Hargreave’s Method) measures response to infrared heat stimulus, applied to the plantar surface.

Our Plantar Test is the original apparatus, designed in close cooperation with Prof. Ken Hargreaves, who devised the method.


Focus the infrared source below the Plantar surface and with the press of a button … latency to paw withdrawal and infrared intensity are recorded automatically ( manual scoring, as in other models available on the market!).

The Plantar Test represents a remarkable advance in methodology, as it combines the best features of all other methods of measuring pain sensitivity. Unique to the Plantar Test, the animal is unrestrained during experiments. Unlike other models available on the market, time latency is recorded automatically by a fiber optic sensor, without having to rely on the experimenter observation of the animal behaviour, thus avoiding unwanted experimental bias.

The Plantar Test basically consists of a movable I.R. (infrared) generator placed below a glass pane upon which the operator deposits the rat, see picture. A Perspex enclosure defines the space within which the animal is unrestrained. It is divided in three compartments, which help the operator to carry out a rapid “screening” work: up to 12 animals can be tested with no appreciable delay in between.

Proprietary to our model is a specific filter, cutting off the visible part of the light spectrum, which would disturb the animal on test and provide an unwanted clue. A feedback circuit detects false starts. Data appear on the front panel and may be exported to a USB pen-drive, or to the PC via USB; both USB pen-drive and software are included in the standard package. 

Data can be printed out on the optional panel-mount printer, or external MiniPrinter

NEW: orofacial stimulation by optional holders 37100, ask for details

Additional Info

    Automatic detection of paw withdrawal via fiber-optic detection No visual score needed! No mistakes, precise measurement
    Function keys on the controller unit to adjust I.R. intensity in the interval 01-99
    CUB Software included for direct connection to the PC, when required
    USB Flash drive included for easy data portability
    Modular Animal Enclosure from 3 to 12 spaces, conveniently designed to restrain mice or rats
    Optional I.R. Flux Radiometer for calibration to guarantee the same emission in different machines, and after years of use
    Power Requirement Universal mains 85-264 VAC, 50-60Hz
    Commands via soft-buttons
    Read-out on multifunction graphic display


    via optional thermal MiniPrinter or panel-mount printer


    via keys on the I.R. Vessel and on the Controller
    I.R. Intensity adjustable in the interval 01-99 (in one digit steps)
    Latency Time displayed on the graphic display, in 0.1s steps
    Connection to PC via USB cable
    Data Portability via USB flash drive provided
    Calibration via appropriate I.R. Radiometer (optional)
    Operating Temperature 10° to 40° C
    Sound Level negligible
    Dimensions 86 x 40 x 35 cm (assembled)
    Weight 13.00 Kg 13Kg
    Packing 98x49x47cm
    Shipping Weight 27.50Kg approx.
    Warranty 17400 is covered by 24-month warranty

    Determination of acute nociceptive thermal threshold in laboratory animals has primarily relied upon the tail flick and hot plate methods.

    Although both methods are used frequently in pharmacological studies, they are not without limitation. In addition, neither method has been extended to investigating behavioural responses to hyperalgesia.

    The Plantar Test represents a remarkable advance in methodology, as it combines the best features of all other methods of measuring pain sensitivity. Unique to the Plantar Test, the animal is unrestrained and unhandled during experiments.

    37370                         On-Board Signal Amplifier (additional amplifiers to be purchased separately)                         Data Acquisition Softwar Plantar Test (Hargreaves’ test), standard package:
    37370-001 Plantar Test Controller
    37370-002 Emitter/Detector Vessel
    37000-003 Large Platform
    37370-327 Supporting column (4)
    37000-006 Modular Animal Enclosure (No. 3 Modules M-S 085)
    37370-005 Framed Glass Pane
    E-AU 041 Memory Flash Drive, including 37370-302 Instruction Manual and 52050-10 CUB DAQ Software
    E-WP 008 Mains Cable
    52010-323 USB cable
    Spare Parts
    E-HR 002 Spare I.R. Bulb (Halogen "Bellaphot", Mod. 64607 OSRAM, 8V-50W)
    E-US 063-1 Battery Snaphat type M4T32-BRI2SH1
    M-S 085 Replacement Cage Module
    37300 Heat-Flux I.R. Radiometer
    37370-278 Additional Stimulation Base, complete with glass pane and animal enclosure
    37100 Set of 2 Durham Holders for Orofacial Stimulation
    37000-145 Panel-Mount Printer
    57145 MiniPrinter
    37400-305 Package of 10 Heat Sensitive Paper Rolls (58 mm paper width, diam. 30 mm roll)

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