Active infrared sensor OA-FLEX AIR T

 Active infrared sensor OA-FLEX AIR T


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Product Details

The OPTEX OA-FLEX AIR T offers a unique “spot” activation area that combines activation and safety functions into one sensor, all based on the OPTEX full active infrared technology.
For applications at, for example, hospital or kitchen doors, the OA-FLEX AIR T can be used as a virtual pushbutton. The activation and safety detection zones are active as soon as the sensor is activated.
The sensor has a unique “BLUEZONE™” lookback function that provides additional safety in the threshold.
Activation of the “BLUEZONE™ area” means the OA-FLEX AIR T offers safety beyond even the EN 16005 requirements. The OA-FLEX AIR T complies with the latest European regulation EN 16005 and has been tested and approved by the German test organization TÜV.


Pushbutton Activation Function

The special OA-FLEX AIR T version offers one narrow activation zone. By marking a zone on the doors or the wall the narrow zone can be used as a virtual touchless switch for activating the doors. The pushbutton function will minimize false openings, making it ideal for hospital or kitchen door applications. All rows are active as soon as the sensor is activated. The sensor will also work as a regular OA-FLEX T offering adjustable activation zones and full door safety and replaces additional safety sensors.

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BLUEZONE™ Technology

The presence detection area in the OA-FLEX AIR T consists of three rows: two rows in front of the door and one additional BLUEZONE™ row that looks into the threshold. The BLUEZONE™ activates as soon as the doors start to open and adds an additional row of active infrared. All three rows will be active when someone or something is within the threshold area for as long as the presence timer is set. When the area is safe the doors will start to close again. The BLUEZONE™ recognizes the door movement and will automatically shut off.

Easy Adjustment

Installation time can be minimized using the easily set switches and levers, meaning the sensor can be quickly adjusted for many different applications to modify the presence detection area.

Detection Area

Emitting area

mm (feet, inch)
Mounting height A 2000 (6'7'') 2300 (7'7'') 2500 (8'2'')
B 130 (5'') 160 (6'') 170 (7'')
C 380 (1'3'') 460 (1'6'') 500 (1'8'')
D 710 (2'4'') 860 (2'10'') 940 (3'1'')
E 840 (2'9'') 1010 (3'4'') 1090 (3'7'')
F 1340 (4'5'') 1620 (5'4'') 1760 (5'9'')
G 1750 (5'9'') 2110 (6'11'') 2290 (7'6'')
H 920 (3') 1110 (3'8'') 1200 (3'11'')
I 1490 (4'11'') 1800 (5'11'') 1950 (6'5'')
J 2060 (6'9'') 2480 (8'2'') 2690 (8'10'')
  • The chart shows the values in the following area angle adjustment setting ; Depth 8°, Width 0°

Detection area
To comply with EN 16005, make sure that the detection area is within the values of the chart below.

mm (feet, inch)
A 2000 (6'7'') 2300 (7'7'') 2500 (8'2'')
X 240 (9'') 250 (10') 230 (9')
H 850 (2'9'') 910 (2'12'') 960 (3'2'')
J 2010 (6'7'') 2200 (7'3'') 2440 (8')
  • Test conditions required by EN 16005
    Floor: Grey paper
    Detection object: EN 16005 CA reference body
    Sensitivity: High
    Speed of detection object: 50 mm/sec.
  • The values above are those of the Detection area when tested referring to the test conditions of EN 16005.
    (The emitting area is as shown in Emitting area above.)
  • The actual detection area may become smaller depending on the ambient light, the color / material of the object or the floor as well as the entry speed of the object.
  • The sensor may not be activated when the entering speed of the object or a person is slower than 50 mm /sec. or faster than 1500 mm /sec.

Please go to the support page to get the necessary files in PDF and/or DXF.

  • Specifications

  • Dimensions

Cover color Silver, Black
Mounting height 2.0 m to 2.5 m (6'7'' to 8'2'') (*1)
Detection area See Detection area
Detection method Active infrared reflection (*2)
Area angle adjustment Depth -8° to +8°
Width ±7° (2 clicks with 3.5° every click-Left/Right)
FLEX EYE angle adjustment Depth -14° to +2°
Width ±42° (7 clicks with 6° every click-Left/Right)
Power supply (*3) 12 to 24VAC ±10% (50 / 60Hz)
12 to 30VDC ±10%
Power consumption < 2.5 W (< 6 VA at AC)
Safety intput Opto coupler
Voltage / 5 to 30VDC
Current / 6mA Max. (30VDC)
Activation output Form A relay
50V 0.3A Max. (Resistance load)
Safety output Opto coupler (NPN)
Voltage / 5 to 50VDC
Current / 100mA Max. (Resistance load)
Dark current / 600 nA Max.
Operating temperature -20°C to +55°C (-4°F to 131°F)
Operating humidity < 80%
Noise level < 70 dBA
Output hold time Approx. 0.5 sec.
Response time < 0.3 sec.
IP rate IP54
Category 2 (EN ISO 13849-1: 2015)
Performance level d (EN ISO 13849-1: 2015)
ESPE Type 2
Weight 230 g (8.1 oz)
Accessories 1 Operation manual
2 Mounting screws
1 Mounting template
1 Area adjustment tool
1 Cable 3 m (9'10'') (8×0.22mm2 AWG24) (*4)

*1 : Installation height up to 3.0 m (9'10") when no need for EN 16005 compliance.
*2 : BLUEZONE™ (1st row), 2nd and 3rd rows have a presence detection function.
*3 : When using this sensor, the sensor has to be connected to a door system which has the SELV circuit.
*4 : Overcurrent protection with less than 2 A.


mm (inch)

  • The specifications herein are subject to change without prior notice due to improvements.

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