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Human Detector Shop

Human Detector

HDF-OPTICAL  Alarm Moduleshop



HDF-OPTICAL secures:
  • Paintings and pictures
  • Wall reliefs

hdf door useThe ultra-compact HDF-OPTICAL sensor module can be easily installed behind paintings and pictures. It is fixed to the wall behind the object. A low-energy IR signal is emitted twice per second. The reflection is monitored. If any changes occur, an alarm is triggered. This enables detection, in case the picture is removed. The low energy, the very short pulse time and the large-area distribution of the IR rays prevent damage to the back of the painting to be monitored.

HDF-OPTICAL can be used both for pictures hanging on gallery rails and for wall-mounted pictures. The integrated 868 Mhz transmitter module achieves a high range even in solid buildings such as castles and palaces. The Human Detector Flex sensor HDF-OPTICAL can be combined with all alarm and voice output devices (such as HDF-BUZZER and HDF-SPEECH) and the alarm monitoring unit HDF-AMD.



The highlights at a glance, please click on the pictogram for further information:

reichweite intern dt sicher dt batterie monitoring dt netz batterie dt
optical dt size dt montage dt  
easy mode dt multi mode dt profi mode dt  



Technology Wireless sensor module for optical monitoring of paintings
Detection method IR reflectance measurement with low energy density
Emphatic installation Concealed installation behind the picture or frame
Transmission frequency 869,5 MHz 
Transmission power  + 15 dBm
Range Up to 1500 m in open area, good penetration of walls due to modulation with
frequency spread spectrum modulation *1
Supply voltage 3 V lithium battery CR2450 changable, external supply voltage 8-14 V AC/DC  *2
Supply current Typ. 2 μA standby, 20 mA measuring, 50 mA transmission, 42 μA on average
Response time Typically 50 ms for complete transmission
Other functions Concealed micro switch for switching on and off
Micro push-button for linking individually and for test mode
IR transmitter and receiver unit (detection range up to 25 mm)
Automatic microprocessor controlled calibration
Battery life up to 20 months *3
Monitoring strength of receive signal
Monitoring battery voltage (alarm before end of battery life)
All operating modes supported (EASY-, MULTI- and PROFI-Mode) *4
LED 3 mm LED red indicating radio operation, 3 mm LED green indicating program function
Dimensions 70,4 mm (L) x 50,4 mm (W) x 17 mm (H)
Weight Approx. 41 grams including battery 
Material of casing Impact-resistant plastic ABS UL94V-1
Protection class IP20 (EN 60529)
Temperature range -10° C bis +60° C if powered
Humidity 0-95%, non-condensing
Conformity EN 61000-6-2; EN 61000-6-3; EN 62368-1; EN 63311
ETSI EN 301489-1, ETSI EN 301489-3, ETSI EN 300220-2; EN 63000 (RoHS)

*1 The range achieved may vary depending on the spatial conditions. All measurements carried out with standard module antenna.
*2 We reserve the right not to ship the CR2450 lithium button cells in case of airfreight. A credit note will be issued therefore.
*3 The specified value is approximate. The service life may change depending on alarm frequency, temperature and battery age.
*4 For more information on the various operating modes, please refer to the separate data sheets.

Specifications are subject to change without prior notice. All measurements were performed under specific conditions.

DISCLAIMER: This document, as well as all other documents (offers / specifications / letters / etc.), do not guarantee any functionality of our products desired by the customer. heddier electronic GmbH does not guarantee any functionality or marketability desired by the customer. The customer should be able to make his own decision on the basis of the transmitted documents. heddier electronic GmbH supports him in this as far as it is given by the "General Terms and Conditions of Delivery and Business of heddier electronic GmbH".

In no event will heddier electronic GmbH be responsible for damages of any nature whatsoever resulting from the use of or reliance upon information from this document or the products to which the information refers. Excluded from this are damages caused by negligent behavior or damages regulated by superior laws.


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