Dwyer Instruments GSTA-N | Nitrogen Dioxide Transmitter with universal current/voltage outputs
The Dwyer GSTA-N is a wall-mount nitrogen dioxide transmitter with field-selectable current or voltage outputs for garage, loading dock and mechanical room monitoring. Genuine stock at General Tech Services LLC, UAE, with free UAE-wide shipping. Request a quote in under a minute - call +971 6 5436933.
Part No. GSTA-N
Product Overview
The Dwyer GSTA-N is part of the Series GSTA nitrogen dioxide transmitters designed to monitor gas concentrations in mechanical rooms, underground parking garages and loading docks. Nitrogen dioxide (NO₂) monitoring is intended for applications involving diesel-engine exhaust.
The wall-mount GSTA-N provides field-selectable analog outputs including 4-20 mA, 0-5 V, 0-10 V, 1-5 V and 2-10 V, allowing connection to a wide range of building management and ventilation controllers. The output can also be inverted using internal DIP switches.
The transmitter uses a standard 0-10 ppm nitrogen dioxide range and an industrial-grade, field-replaceable sensor. Field calibration can be performed using the A-449 remote LCD service display, which also provides sensor end-of-life indication when replacement is required.
The GSTA-N-FC provides the same core configuration with a factory calibration certificate.
Key Benefits
- Monitors nitrogen dioxide (NO₂) associated with diesel-engine exhaust
- Industrial-grade, field-replaceable sensor
- Field-selectable current and voltage outputs
- Supports 4-20 mA, 0-5 V, 0-10 V, 1-5 V and 2-10 V outputs
- Output can be inverted using internal DIP switches
- A-449 service display supports setup and field calibration
- Sensor end-of-life indication
- Wall-mount configuration for room, garage and loading dock monitoring
- Factory calibration certificate available with the GSTA-N-FC version
- Genuine Dwyer Instruments stock with free UAE-wide shipping
Who This Product Is Best For
- Underground parking garages requiring NO₂ monitoring for ventilation control
- Loading docks and enclosed areas affected by diesel-engine exhaust
- Mechanical rooms requiring nitrogen dioxide monitoring
- BMS integrators using analog current or voltage inputs
- HVAC and ventilation system integrators
- Facility operators requiring a field-serviceable gas transmitter
How to Specify & Commission It
- Confirm the application requires nitrogen dioxide (NO₂) monitoring and select a suitable wall-mount location.
- Install the GSTA-N according to the manufacturer's installation requirements.
- Wire the power supply and selected analog output to the building management or ventilation controller.
- Select the required output configuration and configure output inversion through the internal DIP switches if necessary.
- Use the A-449 remote LCD service display for field calibration and verify the transmitter readings.
- Monitor the sensor status and replace the field-replaceable sensor when the end-of-life indication is displayed.
Frequently Asked Questions
What gas does the Dwyer GSTA-N detect?
The GSTA-N detects nitrogen dioxide (NO₂), which is used for monitoring diesel-engine exhaust.
What is the standard measuring range?
The standard range is 0-10 ppm nitrogen dioxide.
How does the GSTA-N connect to a building management system?
It provides field-selectable analog outputs: 4-20 mA, 0-5 V, 0-10 V, 1-5 V and 2-10 V. The output can also be inverted using internal DIP switches.
Is the GSTA-N wall mount or duct mount?
The GSTA-N is a wall-mount model. The Series GSTA also includes duct-mount configurations for in-duct monitoring.
Does the GSTA-N have an integral display?
No. The GSTA-N does not include an integral LCD. The A-449 remote LCD service display can be used for setup and field calibration.
Can the sensor be replaced in the field?
Yes. The GSTA-N uses an industrial-grade, field-replaceable sensor.
How is the sensor calibrated?
The transmitter can be field-calibrated using the A-449 remote LCD service display.
Is a factory calibration certificate available?
Yes. The GSTA-N-FC version provides the same core configuration with a factory calibration certificate.
Is genuine Dwyer stock available with UAE shipping?
Yes. Genuine Dwyer Instruments stock is available through General Tech Services LLC, UAE, with free UAE-wide shipping. Call +971 6 5436933 for pricing and current availability.
Request a Quote Today
For pricing or to place an order, contact General Tech Services LLC.
Call +971 6 5436933 | www.generaltechshop.ae
