Micro Electro Mechanical Systems, (MEMS technology) are defined as miniaturized mechanical and electro-mechanical devices that are manufactured using microfabrication. MEMS Technology enables a wide range of available flow sensors from 0-500 SCCM to 0-5 SLPM.

The micro flow sensor measures a change (cooling) in thermal conductivity between two sensors. Only one is in the gas stream which is cooled by flow of the medium. The differential output is proportional to the gas flow. The system has a high accuracy and good repeatability. The built-in temperature sensor compensates the flow for changes in temperature. The output is linear over the range of flow.

Model 20 MEMS Gas Flow Meters

The Model 201-C PID is a flexible and versatile Analyzer. More than three thousand of these photoionization detector (PID) based Analyzers have been sold worldwide for applications ranging from carbon bed breakthrough, leak detection to stack and ambient air monitoring. This is attributed to the rugged and durable design that is characteristic of all PID Analyzers products. Several years ago, we added the flame ionization detector (FID) to the 201 series product line. Other continuous Analyzers in the 200 series include the Model 202 Infrared (IR) for Carbon dioxide, hydrocarbons, carbon monoxide, thermal conductivity detector (TCD), Model 204 and a Model 210 Zirconium Oxide Oxygen Analyzer. The addition of these new Analyzers greatly improves the capability and range of process analyzers from PID.

Model 201 Continuous Monitor


The Model 2012 is an analyzer for the measurement of accurate ppb levels of NOx, O3 & SO2 in ambient air & in the workplace. This analyzer is unusual since it is easy to calibrate, and operate. Well tested electrochemical sensors are provided for measuring common toxics in ambient air.

Model 2012 Ambient Air Analyzer

The new range of state-of-the-art hand held analyzers are employed for water quality measurements in lakes, streams, processes. They have LiPO batteries rated with UN 38.3 classification for land or air shipments. They are very competitively priced and the data can be easily logged and sent to a PC


Model 2050 pH Meter

The Model 30 is an analyzer for the measurement of toxic gases in the
workplace. This analyzer is unusual since it is easy to calibrate, has a fast response and has only one step to send logged (optional) data to a PC.

It uses electrochemical sensors for the measurement of ppb to ppm levels of selected toxins. It has many unique features.

We introduced the first commercial photoionization based instrumentation for industrial hygiene measurements of 1 ppm of vinyl chloride in 1974. Nearly 40,000 of the portable PIDs have been sold throughout the world for IH and safety measurement.

More than 50 United States Environmental Protection Agency and Occupational Safety & Health Administration (OSHA) methods based on PID have been published in the Federal Register.

Model 30 Electrochemical Sensor Analyzer

PID Analyzers offers a new lightweight transportable portable GC for environmental, quality control, natural gas... applications. The GC is extremely easy to use with its 10” VGA Color screen. It has significant data storage capability in a 32 GByte solid state drive, & a choice of one of our excellent GC detectors. The 323 will go anywhere with its light weight (17 #). The GC is powered by an Intel Pentium PC with Windows 10 operating system and PeakWorks chromatography software. This new gas chromatograph has a low mass column that allows fast GC programming.

Model 323 High Performance Fast GC

The process of ionization which occurs in organic compounds when the carbon- carbon bond is broken via a thermal process in the flame that results in the formation of carbon ions. These ions are collected in the flame by applying a positive potential to the FID jet and the ions are pushed to the collection electrode where the current is measured. The response (current) is proportional to the concentration and is measured with an electrometer/amplifier. An FID consists of a combustion/ion chamber, a flame, a voltage source for the accelerating electrode (usually applied to the jet) and an amplifier ca-pable of measuring down to one to one picoamperes full scale. The FID is a mass sensitive detector, the output of which is directly proportional to the ratio of the compound’s carbon mass to the total com-pound mass. Thus, the sample is destroyed in the flame.

Model FI53-02

The Model 202 is a reliable & rugged dual beam non dispersive infrared (NDIR) monitor-ing system used primarily for the measurement of CO2, CH4, CO, & N2O hydrocarbons.

The PID Analyzers Infrared gas analyzer uses a dual beam interference filter instrument and has been designed with the process and plant environment in mind.

Model 202 Infrared Analyzer

Two and three electrode systems can be used for the electrode systems can be used for the electrochemical sensors. Sensor technology may include fuel cell (O2) or amperometric (CO, H2S, ...) where the sample is oxidized or reduced. The electrochemical sensors for H2S and aCO are calibrated monthly with a ppm span gas and zero gas.

Model 10 Hydrogen Analyzer

The Model 2010 is an analyzer for the measurement of accurate ppb levels of Hazardous Materials (Total VOC’s) at fencelines & in the workplace. This analyzer is unusual since it is easy to calibrate, and operate. It will produce high mV readings at 1 ppb and below.

Model 2010 Concentrator 

The new range of state-of-the-art hand held analyzers are employed for water quality measurements in lakes, streams, processes. They have LiPO batteries rated with UN 38.3 classification for land or air shipments. They are very competitively priced and the data can be easily logged and sent to a PC

Model 2054 Dissolved Oxygen Analyzer

The Model 112 is a low cost continuous VOC Analyzer. It has an optional 4-20 mA output, a single programmable setpoint, larger pump & an industrial NEMA 4 enclosure.

This 112 the choice of one 9.5 or 10.6 eV lamp, Operator's Manual, configuration software and RS232 cable.

Model 112 Fixed System PID

Model 40 Infrared CO2 Analyzer

The new range of state-of-the-art hand held analyzers are employed for water quality measurements in lakes, streams, processes. They have LiPO batteries rated with UN 38.3 classification for land or air shipments. They are very competitively priced and the data can be easily logged and sent to a PC,


Model 52 Conductivity & TDS Meter

PID Analyzers offers a new lightweight portable GC for IH, environmental, Process & Stack Monitoring, and Building Security applications.

The base Model 312 comes with Embedded Intel PC, Windows 10 OS, PeakWorks Software, Remote Control (worldwide for Troubleshooting, Training etc.)


Model 312 Portable GC

The Model 301-C PGCs are flexible and versatile Analyzers that are in their fourth generation.

The addition of these new Analyzers greatly improves the capability and range of Process Analyzers from PID.

Model 301-C Process Gas Chromatograph

Model 103 - PID -Analyzer for Total VOCs & Hydrides in Air & Water

Model 103 Photoionization Analyzer

Model 2011 Infrared CO2 Analyzer

The PID provides a response to a wide range of organic and some inorganic compounds at parts per billion (ppb) levels. The PID consists of an ultraviolet lamp and an ion chamber.

Model PI52-02

Measures the difference between the thermal transfer characteristics of the gas and a sealed reference. The typical carrier gas is nitrogen in gas chromatography. The sample and reference filaments are two legs of a Wheatstone Bridge. A constant current is applied with a resultant in a rise in filament temperature. As the sample passes through the detector, the resistance changes as the reference gas is replaced by the sample which has a lower thermal conductivity. This difference in resistance is proportional to the concentration. The response is 

since the detector responds to any compound that conducts heat. The minimum detection limit is in the 100-300 ppm. The maximum concentration is 100%.

Model TC54

Model 95 - PID -Analyzer for Total VOCs & Hydrides in Air & Water

Model 95 Photoionization Analyzer

Photoionization (9.5, 10.0, 10.6, 11,7 eV ppm), Analyzer with ppb Mode+ 20 different EC, CG or IR sensors Up to 6 Channel Analyzers

Model 104 Photoionization Analyzer

This analyzer has features and pricing like the early Model 102. The electronics have been upgraded, the lamp is the same long lifetime 10.6 eV but it does not have the capability to add 9.5 or 11.7 lamps. It does not have BT or WiFi. It does have a 2.4" OLED Display and LiPolymer battery. The Model 103 has many more features than this particul ar model.

Model 90 Basic Photoionization Analyzer

 Webinarfeaturing our founder, Dr. Jack Driscoll, SCHB member, ACS Fellow, 2019 recipient of the Kathyrn C. Hach Award for Entrepreneurial Success, and serial entrepreneur. This event will occur Wednesday September 29, 2021 at 2pm ET on Zoom. The half hour presentation will be followed by live Q&A. RSVP if you wish to attend by using the form  below. 

How to start a small chemical business in 2021

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