mobile menu close icon mobile menu icon

Tango® TX2 Two-Gas Monitor

Protect workers, reduce false alarms, and spend less time managing your gas detector fleet with the Tango TX2. Unlike other two-gas monitors that use combination sensors, the Tango TX2 uses individual sensors to increase alarm accuracy so you can reduce unnecessary shutdowns and improve incident data quality.

Get a Quote Common Configurations and Accessories

Tango TX2

Built for You and Built to Last

The Tango TX2 reduces downtime from false alarms, so you spend less time juggling equipment and more time empowering your workers to do what they do best.


Increase alarm accuracy with the only two-gas monitor built with individual sensors.

ribbon badge

Count on quality with a Guaranteed for Lifewarranty.


Get two-year run time with a replaceable battery that eliminates the need for a charging station.

Test Drive the Tango TX2

Tango TX2
Reduce unexpected project shutdowns from false alarms by increasing alarm accuracy with two individual sensors

Customizable display options to see the gas readings you need most.

Replaceable battery that eliminates the need for charging

Increase compliance and willingness to use the lightweight and hassle-free design

Maintenance That Won’t Slow You Down

inet control-Sep-02-2021-02-37-07-22-AM

DSX™ Docking Station Compatibility

Pair with a docking station to calibrate, bump test, and upload gas detector data automatically.

Learn More

Pairs with iNet® Exchange

Eliminate maintenance and repairs by getting replacement monitors shipped directly to your door.

Learn More

Tango TX2 man orange hat

Compare Monitors

Interested in learning how Tango TX2 stacks up against other two-gas monitors? Take a look at this chart to compare the maintenance, reliability, and warranty of leading two-gas monitors.

Download Comparison Chart

Manuals, Brochures, and More

Stay up to date with the most current product information, specification sheets, and quick-start guides.


Sensors Available by Monitor

Declaration of Conformity

Tango TX2 Declaration of Conformity

Spec Sheet

Tango TX2 Spec Sheet

Product Manual

Tango TX2 Product Manual

Tango TX2 Frequently Asked Questions

What is the advantage of using the Tango® TX2?

The Tango TX2 is the size of a credit card and weighs less than a smartphone. A two-year run time from a single, replaceable battery eliminates the need for charging infrastructure and simplifies gas detector management. Unlike other two-gas monitors that use combination sensors, the Tango TX2 uses individual sensors, increasing alarm accuracy so you can reduce unnecessary shutdowns and improve incident data quality.

When should I use a Tango TX1 versus a Tango TX2?

The Tango TX1 is best for single-gas detection using DualSense® Technology for extra coverage of a single gas hazard. If you need to monitor a second gas, you should use the Tango TX2.

What sensors does the Tango TX2 support?

The Tango TX2 can support the following sensors: CO, H2S, SO2, NO2, CO H2Low.

Are there any restrictions on sensor combinations?

Any two sensors from the supported sensor list can be combined in the Tango TX2.

Are sensors interchangeable?

The sensors are interchangeable. If you switch a sensor, the Tango TX2 will immediately detect the new configuration.

With two sensors, how do I know what gas type reading is displayed?

The TangoTX2 can display readings from sensor one, readings from sensor two, or alternate between the two readings. The default setting is for an alternating display, but users can choose to alternate the readings every three seconds or choose one sensor to be displayed. 

If I choose to display a specific sensor, what happens when the other sensor goes into alarm?

When a sensor goes into alarm, the readings alternate regardless of the display option chosen.

Does the Tango TX2 come with a warranty?

Yes, the Tango TX2 is Guaranteed for Life™ to ensure you always have the highest quality gas monitor.

Tango TX2 Technical Specifications


Guaranteed for Life™. Warranted for as long as the monitor is supported by Industrial Scientific Corporation (excludes sensors, batteries, and filters). CO and H2S sensors are warranted for three years. All other sensors are warranted for two years.

Temperature Range

-40 °C to 50 °C (-40 °F to 122 °F) **

Humidity Range

15-95% non-condensing (continuous)


CO, CO/H2, H2S, NO2, SO2 electrochemical sensor technology


3.6 V primary lithium-thionyl chloride (Li-SOCl2); 1.5AH, 2/3AA; replaceable;

non rechargeable; always on; up to two-year run time depending on operating conditions



ATEX1: Ex ia I Ma;

Ex ia IIC T4 Ga; Equipment Group and Category: I M1 and II 1G,

EN 60079-0: 2012

EN 60079-11: 2012

EN 50303: 2000

IECEx3 Ex ia I Ma, Ex ia IIC T4 Ga

IEC 60079-0: 2011

IEC 60079-11: 2011

UL (C-US)4: Class I, Groups A, B, C, and D; Class II, Groups E, F, and G; T4;

Exia Class I, Zone 0, AEx ia IIC T4

UL 913 8th Ed.

UL 60079-0 6th Ed.

UL 60079-11 6th Ed.

CSA C22.2 No. 157