From LBPWiki
| Tag Sensor
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A tag sensor is a sensor gadget that detects specific tags in proximity of a tweaked range with matched tag colour and label. A tag sensor will ignore any tags which have been switched off.
Use and Behavior
The Tag Sensor can be placed on any object or microchip. It has no input port, and a single output port.
Digital Signal Output
- The digital signal output is normally off when there are fewer matching tags than the 
within the trigger range.
- The digital signal output will normally be on when there are at least the 
within the trigger range.
Analog Signal Output
The tag sensor outputs an analog signal depending how the "Output Value" tweak is set.
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- Closeness: In this mode the tag sensor outputs an analog signal depending on the distance to the nearest tag in the range, as a scale percentage of the distance the tag is in between the maximum and minimum ranges. If a sensor's
 "Minimum Detection Range" is set to at least 0.1, the sensor's output will scale evenly over the entire distance of the sensor range, and only reach 100% when the tag is at 0.1 of the sensor. However if a sensor's "Minimum Detection Range" is set to exactly 0.0, the sensor will instead output 100% any time a matching tag is within 1/4 of the  Maximum Detection Range, and the signal will approach 100% as a tag approaches that 1/4 range threshold. Once the distance between sensor and tag is less than "Minimum Detection Range" then the sensor outputs off/0%. If the  "Number of tags required" tweak is set to more than 1, it will detect the closest available tags to produce a set of that size, and yield the distance to the furthest of those. The analog signal output is always positive.
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- Signal Strength: In this mode the tag sensor will instead output the analog value of a tag in sensor range, with the output signal ignoring the closeness of the tag. If the "Number of tags required" tweak is set to some value N, it will return the analog value of the Nth strongest signal in range. For example, if set to require three tags, and there are four tags in range with values of 40%, 30%, 20%, and 10%, the sensor would return 20% (the third strongest value). By the same logic, under the default setting of N=1, the sensor just returns the strongest signal in range. If there is a tie (for example +10% and -10%) it will use the closer one.
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Behavior Inside Microchip
Tag sensors inside microchips ignore all the tags in the entire microchip and will only detect those outside the microchip. This effect works through multiple levels of circuit boards too.
Tweaks
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Minimum Detection Range:
(0.0 - 5000.0)
Sets the inside edge of the trigger area.
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Maximum Detection Range:
(0.0 - 5000.0)
Sets the outside edge of the trigger area.
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Trigger Angle Range:
(0.0 - 360.0)
Sets the angle of the trigger area. Rotate the gadget to change the orientation that angle.
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Count
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Number of Tags Required:
(1 - 100)
Determines the number of tags that must be within the trigger area to activate the gadget.
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Tag Type
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Tag Colour and Label:
Set the colour and label that the tag sensor senses. Tags that don't match this description will be ignored.
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Output
Visuals
| LittleBigPlanet 2 Gadgets |
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| | Connectors | | | | Emitters | | | | Movers | | | | Rotators | | | | Sensors | | | | Simple Logic | | | | Advanced Logic | | | | World Tweakers | | | | Object Tweakers | | | | Creature Pieces | |
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Yes • 
No)
Closeness • 
Signal Strength)
