D-16 PortaSens III Gas Detector

Portable gas detector great for leak detection, personnel safety, and general gas detection.  Capable of sensing multiple gasses (see list below) with simple sensor swaps.  Integrated datalogging, and audible alarms.  The D16 is sold with every accessory you may need for accurate and fast portable gas detection.

The D16 PortaSens III is the new version of the C16 PortaSens II


As low as $1,350.00

The D16 PortaSens III is a great device for gas leak detection, personal safety, spot checks, confined entry, or even datalogging of gas levels in a workplace.  The D16 is a great portable monitor, but can also serve as fixed monitor placed in a location where it logs data over long periods of time.

The D16 is a mulit-gas sensor that will allow for a variety of gasses to be measured with the same device.  Choose the gas sensor you require, or choose additional sensors here, to add to your order.  Each gas sensor is listed with a standard range however each sensor can be calibrated to custom ranges Contact us for details on gas sensors you do not see here, or gas ranges you may require.

D16 Features:

     -Interchangeable “Smart Sensors” for over 30 gases

     -Internal sample pump and external sampling wand

     -Two NiMH “D” cell battery and battery charger

     -One-hand pistol grip design

     -NEW touch screen and back-lit color display

     -Instantaneous and timed-sampling modes of operation

     -Visual and Audible alarms

     -Internal data-logger with USB connection



The Series D16 PortaSens III is similar to its predecessor the PortaSens II which has been in service for the past 15 years (since 2003).  The internal redesigns on this instrument include: modern USB computer interface, a color touch-screen display, and improved pump control! The D16 PoratSens III portable gas leak detector is a versatile tool for performing regular leak checks in gas storage areas, around process equipment and piping or in confined spaces prior to entry. Designed for easy one-hand operation, the detector contains an internal sample pump and a flexible sampling wand to allow pinpoint location of the source of leakage. A large display insures that measured values are easily visible, and a back-light for the display insures readability in low or no light conditions.

A unique feature of the D16 detector is its ability to measure a variety of different gases by simply inserting the appropriate sensor for that gas. This means that one detector can be used to measure over 30 different gases or vapors, reducing the need to purchase individual detectors for each type of gas. And sensors can be changed quickly and easily, without the need for calibration when a sensor change is made.

Sensors used in the PortaSens III are ATI’s smart sensor modules. Each sensor module is actually a sensor, amplifier, and memory module in one compact package. Because of this design, sensor modules can be calibrated independently and simply plugged into any detector for immediate use. When installed in a detector, calibration data is loaded into the microprocessor so that no adjustments are needed. The result is that a detector can, for example, go from phosgene measurement to ammonia measurement in less than one minute.

PortaSens III Gas Detectors are supplied in a padded carrying case for easy storage and transport. Space is provided for an extra battery plus up to two sensor keepers, which means up to 8 extra sensors ready for immediate use.


The following components are standard:

     -PortaSens Gas Detector

     -Spare Filters (3)

     -10” Teflon Lined Sampling Wand


     -USB connection Cable (provides power, but does NOT charge battery)

     -Two NiMH “D” Cell Battery and battery charger

     -Sensor Keeper for up to 4 additional sensors

     -Calibration “T” Fitting


Click HERE to add additional gas sensors to your order.

Battery Charger Provided with the D16:

Changing Sensors in the D16:

Sensors in the D16 can be changed easily. See image below.

Remove 2 thumbscrews from the sensor cover, remove the sensor cover, and swap sensors. If you are using the sensor keeper (included with the D16) spare sensors can be kept warm and ready to use. Spare sensor keeper allows for use of a battery to keep power to the sensors. Therefore, after swapping sensors there is virtually no delay in measuring your new gas!

Data logging with the D16:

The D16 is capable of onboard data logging of your gas measurements. All data logging cables and software are included with the D16. Data logging is easy to set-up and easy to use.

The D16 is capable of storing 4 Gb of data on its internal memory. Data is easily transferred to your PC through the USB port. No special cables are required, just a standard USB cable connects the D16 to your PC.

Data logging intervals are user settable with the touchscreen. Virtually any data logging interval chosen is available.

The screenshot below shows the data logging set-up of the D16. A very simple interface is used to set-up your data logging software.

Data is logged with D16 and downloaded. All data is exported to a CSV file that can be graphed or shown as a table with common spreadsheet software on your computer.

For a downloadable PDF with information on the D16's data logging capabilities: Please Click Here!

D16 Specifications

Range User adjustable within limits of selected sensor
Display Back-lit touch-sensitive color graphics LCD
Accuracy Sensor dependent but generally ± 5% of value (limited by cal. gas)
Repeatability ±1% (Electronic)
Sensitivity: 1% of sensor module range
RS-232 output of stored gas values, 0-1 VDC analog (requires optional output cable)
Memory 12,000 data points
Storage Interval Programmable for 1, 5, 10, and 15 minute intervals
Power: Rechargeable NiMH D cell battery will run for 10 hours continuously, and device is supplied with 2 D cell batteries. 115 or 220 VAC chargers available
Detector Material: Glass filled Polycarbonate
Alarm Relays: Three SPDT, 5 A @ 230 VAC resistive
Three concentration alarms with adjustable set points. Alarms may be set for high, low, or off. Low flow and low battery alarms. Alarms displayed on LCD and indicated by audible beeper
Calibration: Replace the sensor when the sensor fails (Sensor Life: approximately 2 years)



     -D16 Product Spec Sheet

     -D16 Product Manual


Links to more info:

     -Calibration information

     -ATI Specific Calibration Information



We provide each sensor with a standard detection range. However, for specific applications each sensor can be calibrated to custom ranges. See list below for min, and max range options for each sensor, along with standard range.

Please contact us with any questions on what sensor might be right for you, or if other sensors are available for your application.


D16 Sensor specifications

View a list of the D16 accessories Heres.


Unboxing the D16 Portasens III


Showing features and operation of the D16 Portasens III

Startup for the D16 Portasens III

Information on the Private Label of the D16's

More Information
Manufacturer ATI
Call For Price No
Gas Acid Gases, Acetic Acid, Acteylene (C2H2), Alcohol, Ammonia (NH3), Arsine (AsH3), Bromine (Br2), Carbon Dioxide (CO2), Carbon Monoxide (CO), Chlorine (Cl2), Chlorine Dioxide (ClO2), Diborane (B2H6), Dimethylamine, Ethylene Oxide (ETO), Fluorine (F2), Formaldehyde (CH2O), Germane (GeH4), Hydrocarbon (HC), Hydrogen (H2), Hydrogen Bromide (HBr), Hydrogen Chloride (HCl), Hydrogen Cyanide (HCN), Hydrogen Fluoride (HF), Hydrogen Peroxide (H2O2), Hydrogen Selenide (H2Se), Hydrogen Sulfide (H2S), Iodine (I2), Methane (CH4), Nitric Oxide (NO), Nitrogen Dioxide (NO2), Nitrogen Oxides (NOx), Oxygen (O2), Ozone (O3), Peracetic Acid, Phosgene (COCl2), Phosphine (PH3), Silane (SiH4), Sulfur Dioxide (SO2)
4-20 mA Output No
Field Replaceable Sensor Yes
Auto Test Generator None
Min, Max, Avg No
Voltage Output 0-1 V
Power Requirements NiMH D cell battery (rechargeable), Alkaline D cell battery may also be used. Optional 120 or 220 VAC chargers available
Datalogging Yes
Rechargeable Yes
Field Replaceable Battery Yes
Warranty 1 Year
Sensor Range

0-1,000 ppb

0-2 ppm

0-20 ppm

0-1,000 ppm

Sensor Features

-Internal Sample Pump

-Fast Response Time

-Carry Case w/ Accessories

-Integrated Datalogging

Range Gas Dependent
Resolution Gas Dependent
Audible Alarm Yes
Sensor Life 2 Years
Calibration 6 Months
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