Home > Explosives > Technology > Sensors > Photo Ionization Detection (PID)

Photoionization detectors are commonly used for detection of volatile hydrocarbons and other organic vapors. Gas molecules are ionized by ultraviolet light and the resulting ion current is directly proportional to the gas concentration. PID systems provide a rudimentary degree of chemical specificity because only chemicals with ionization potentials below the energy output of the PID lamp can be detected.

Airsense Analytics (2)
PID Analyzers LLC (1)
Smiths Detection, Inc. (1)
Handheld (3)
Person-Portable (1)
Commercially Available (3)
Discontinued (1)
Unit Cost
$10,000 - $20,000 (1)
$20,000 - $50,000 (1)
$50,000 - $100,000 (1)
N/A (1)
Sample Introduction
Liquid (1)
Vapor/Gas (3)
Sensitivity / Detection Limit
ppm (4)

Additional Filter Options

Product Type

Instrument (4)


9 (4)


<30 Lbs. (4)

Power Requirement

Alkaline Battery (2)
NiMH Battery (1)
AC/DC Line Power (1)

Training Required

<1 day (3)
<1 week (1)


Yes (1)

Response Time

Continuous (<30 seconds) (2)
<1 minute (1)
<15 minutes (1)

Supporting Data Available

None (4)


Extreme Temperatures/Humidity (1)
None (3)

Shelf Life

>5 years (4)

Consumables Required

None (2)
<$1,000/year (1)
>$1,000/year (1)
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