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HotSpot2D v1.1 $4,110.70US
2 - 6 : $3,905.67US ( save 5% )
7 - 19 : $3,699.63US ( save 10% )
20 + : $3,288.56US ( save 20% )
excl. sales tax

Remotely measure the surface temperature of the main object that is in the field of view of this sensor, as well as ambient temperature. Detects presence of humans, animals or other objects by spotting the heat it emits. Be there not or be I-CubeX-ed. Works really well as a respiratory sensor, ie. to detect breathing, if placed looking into the nose. A digital I2C sensor, that outputs cailbrated, high resolution, low-noise signals.

Application examples

  • Use for detecting visitors present and/or passing by an exhibit or through a walkway.
  • Point the HotSpot2D in the direction of the air stream coming out of / going into the nose, and detect breathing in and out.
  • For sleep research, combine with an Orient4D for body orientation, a BioEmo for skin conductance, a BioVolt for muscle contractions, and a BioBeat3D for heartbeat, blood oxygen level and skin temperature.

Other human, animal and object sensors

We offer a number of sensors to detect motion and/or presence and/or proximity of humans, animals and objects in a space:

  • For a motion sensor with variety of sensitivity and output configuration options, view the MoveOn v1.8.
  • If you need a motion sensor of which the output changes each time any motion is detected so that it can be smoothed to give a signal that roughly represents the amount of activity, checkout the MoveOn v1.4.
  • A smaller version which output stays high while motion is detected and during a fixed length of time afterwards, try the MoveMiniOn.
  • Want to detect motion through walls ? See the MoveThruOn.
  • Need to detect presence as well as body temperature ? Try the HotSpot2D.
  • The Advance-645 detects the distance of a person in a 50° cone.
  • Need pin-point distance detection ? The ReachFar and its digital, laser-accurate cousin ReachFarD detect distance up to 4 m within a cone of a few degrees. The ReachClose and its digital, laser-accurate cousin ReachCloseD do the same but up to 2 m.
  • Setup perimeters with break-beams made from a SeeLaser-Red or the invisible SeeLaser-IR (or any of our SeeLaser products) and a Flash.
  • Place TapTile, TapMatOn or TapStripOn sensors on the floor or stairs to detect a person stepping or standing on it, and even get a measure of the exerted force.
  • To know exactly who is present, use the ReachID and let each visitor be detected through their RFID tag.

Technical specifications

Product HotSpot2D sensor
Version 1.1 (July 2022)
Sensing parameter temperature of a heat emitting object and ambient temperature
Sensing method infra-red radiation intensity sensor
Spectral range 5 to 14 µm
Active volume 90 ° cone
Temperature range -70 to 380 °C
Accuracy ± 0.5 °C
Response time 0.1 s
Power supply 4.75 to 5.25 V DC, 5 mA at 5 V
Dimensions 18 x 12 x 8 mm (0.71 x 0.47 x 0.31 inch)
Mounting two 2.5 mm (0.10 inch) mounting holes spaced 7.0 mm (0.28 inch) apart
Cable 1.0 m (39 inch), shielded, red wire = power, thick black wire = ground, grey wire = I2C data (SDA), white wire = I2C clock (SCL), extendable at least 10 m (33 ft) with ExtendCableD-10
Connector male 1x4 plug with 4 pins in a row spaced 2.54 mm (0.100 inch)
Weight 12 g (0.42 oz), incl. cable
Software support
  • Our EditorX software allows you to configure the digitizer to process and map the sensor data of multiple sensors simultaneously.

  • 17 Jul 2019: HotSpot2D v1.20 for MacOS and Windows from source code in Max. For multiple sensors or sensor outputs, run multiple instances of the application, each started in its own folder. Requires a digitizer with firmware v7.51 or higher, v7.33 or higher (but lower than v7.50), or v6.33 or higher (but lower than v7.00). Use together with Connect (MacOS / Windows).
Application notes
  1. Make sure the sensor is plugged into the digitizer with the red wire connected to power. Reversing the plug may cause damage to the sensor.
  2. Requires a digitizer with digital (I2C) ports, eg. the USB-microDig or the Wi-microDig.
  3. The default I2C address is 90 (0x5A). Both I2C lines have 10 kOhm pull-up resistors.
  4. Our software enables you to use most features of this sensor. In EditorX, use the method parameter to set the sensor to output (method #0-125) the temperature difference between the target object and the ambient environment (where the method number is used to scale the difference) or to output (method #127) the raw temperature value of the ambient environment or (method #126) of the target object.
  5. See the HotSpot2D function description in the firmware documentation for more details about the various methods available in host and standalone mode.
  6. For more technical specs, and to find out how to access the sensor data in detail, please consult this datasheet.
  7. The closer the object of interest, the more accurate will be the temperature measurement. Since the field of view is a cone, all the objects in its field of view contribute infra-red radiation that affect the temperature calculation, with the object in the centre of its field of view contributing the most.

This page was updated on Monday 05 September 2022.
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