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Activation + Safety Infrared Sensor
3H-IR14(Successor model of HR94D Series)

Cost efficient door opening & pedestrian safety in one compact sensor.

*For Users of HR94D and HR942D, Hotron recommends the replacement to 3H-IR since HR94D and HR942D is discontinued.


Active Infrared Sensor

Active Infrared sensors take a snap shot of the reflection levels from the ground. Any change in the properties of the reflected wave will indicate that a person or object is in the detection area.

Useful functions

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  • Infrared
  • Presence Detetion
  • Full Color LED
  • Snow Mode
  • Self Diagnosis
  • Activation + Safety
  • Small Stores
  • Transportation
  • Medical
  • Public
  • Food Service
  • Museums
  • Office Buildings
  • Entertainment
  • Residence



  • Smallest sensor on the market that combines door activation with pedestrian safety in one product

Pedestrian Safety

  • Double curtain of infrared safety beams protects pedestrians from dangerous automatic door movements

Energy Efficient

  • Accurately adjustable detection area reduces false door activations in busy urban environments
3H-IR14C  Detection Area
3H-IR14C Installation Image


  • Intelligent software along with internal sensor self monitoring ensures safe and reliable operation in all installation environments

Large Detection Area

Ease of Installation

Attractive Design

Detection Area

Detection Area

External Dimensions [mm(inches")]

External Dimensions


can see in the scroll.

Model 3H-IR14
Detection Method Active Infrared Reflection
Installation Height 3.0m (9.84ft) Max
Sensitivity Adjustment Available (Potentiometer)
Depth Adjustment Angle : 0° / +5°
Row : R1 ~ R4
Width Adjustment Wide / Narrow
Frequency 4 Frequencies
Presence Timer 2s / 30s / 60s / ∞
Monitor Mode Normal / Snow
Self-Monitoring ON / OFF
LED Indication Standby : Green
Row3, 4 Detecting : Red
Row2 Detecting : Slow Flashing Red
Row1 Detecting : Fast Flashing Red
Door Hunting : Orange
Waiting for reset : Flashing Orange
Internal Sensor Error : Flashing Green/Red
Power Supply AC/DC 12 ~ 24V ±10%
Power Consumption AC12V : 1.3VA Max, AC24V : 1.5VA Max
DC12V : 65mA Max, DC24V : 35mA Max
Output Relay Contact 1c  DC50V 0.1A (Resistance Load)
Fail safe
Output Holding Time Approx. 0.5s
Operating Temperature -20°C ~ +60°C, (-4°F ~ +140°F)
Sensor Dimensions 210mm (W), 59mm (H), 28.5mm (D)
Weight Approx. 180g (0.40 lbs)
Color S : Silver , BL : Black
Accessories Provided Cable, Mounting Template, Installation Instructions
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