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Model 113 Portable O2, H2S, NH3, CO2 Analyzer

Product information

  • The Model 113+ is a EC based Analyzer that can measure up to ppm to% v/v of components and has the capability to add up to 2 EC sensors and a CG or TCD sensor.
  • The Model 113 includes the choice of one Snap-On Module plus up to 1-3 optional electrochemical sensors an an optional TCD or CG sensor , datalogging, Operator's Manual, and Rechargeable Nickel Metal Hydride Battery.
Model 113 Portable O2, H2S, NH3, CO2 Analyzer image coming soon


Species measured

Universal response for TCD


CO, O2, O3, H2O2, SO2, H2S, THT, NO, NO2, NH3, AsH3, PH3, SH4, HCl, Cl2, ClO2, F2, HBr, HF, HCN, I2, Phosgene, H2, ETO, Formaldehyde, C2H4, 1,3 BD, Acrylonitrile

CG Sensor

Hydrocarbons, H2, NH3 …

TCD Sensor

H2, He, Xe, CO2, …


+/- 2-3% of reading

Response time

<10 sec. to 90% response plus … depending on the sensor

Sample flow rate

> 0.2 LPM

Span Drift

<3% over 24 hours


ppm to 100% v/v depends on the sensor

Linear Range

ppm to 100% direct reading

Power consumption

< 0.75 watt maximum


8'' L x 3'' W x 2.25'' D


1.5 pounds

Instrument operating conditions

5-40 degrees C, 0-95% RH (non-condensing)


Isobutylene Referred

Battery operated

> 10 hours of operation


Snap on Heads

Unique Snap on Heads are available only from PID. The readout unit recognizes the head type and calibration factors when the heads are interchanged.


EC (approximately 30 optional EC sensors), TCD, or CG.

Single piece construction

The single piece construction (when the head and readout units are snapped together) of ABS plastic is very rugged and durable

Ease of calibration

The two point calibration for the TCD uses a zero gas and a span gas. The time to calibrate is about 40 seconds. The Cal button is located on the main menu for ease of use.


Manual or automatic datalogging (7,000 points) is available. The 113 has a built in real time clock. Viewer software (Windows 98-XP compatible) comes with the 113.


There are libraries for the TCD & CG built into the 113


Our 2 line by 16 character display can be backlit. The upper display provides the concentration and the bottom display provides the sensor, units, alarm and logging mode.

Backlit Display

Allows for easy visibility.


Our 16 bit ADC provides a resolution of 1 part in 64,000 and our signal algorithm minimizes noise by signal averaging in the msec range

Programmable Voltage output


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