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Thermal dispersion airflow measuring station · BACnet points list
EBTRON Advantage IV Airflow Transmitter (GTx116e / GTx108e) BACnet points list
Updated 28 October 2026
EBTRON's Advantage IV transmitters report averaged airflow and temperature from thermal dispersion probes, plus optional humidity, pressure and per-sensor traverse data. One object list covers the whole family: which objects exist depends on the transmitter model and probe types connected. Per the Network Port notes, the GTB, GTM and GTS variants carry the BACnet IP settings and the GTB and GTC variants the MS/TP settings.
This page lists 71 BACnet objects for the EBTRON Advantage IV Airflow Transmitter (GTx116e / GTx108e) — 3 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from EBTRON’s own free documentation, linked below.
- Manufacturer
- EBTRON
- Model
- Advantage IV Airflow Transmitter (GTx116e / GTx108e)
- Equipment
- Thermal dispersion airflow measuring station
- Equipment type
- Thermostats, sensors & meters
- BACnet objects
- 71 (3 writable)
- Transport
- BACnet IP, BACnet MS/TP, BACnet Ethernet
- Firmware
- Fan Area objects (AV2-AV9) and Network Port need GTM output card FW 4.17+, GTC FW 8.33+ or GTB FW 8.35+
- Default device instance
- 2
- Also known as
- GTC116e, GTM116e, GTB116e, GTC108e, GTM108e, GTB108e, EB-Flow2, Advantage IV, Table F-2
BMS integration notes: EBTRON Advantage IV Airflow Transmitter (GTx116e / GTx108e)
This is a read-only measurement device for a BMS. Map average airflow and temperature (AI1/AI2) and the alarm status, plus RH/dew point/enthalpy or the second location if those options are fitted. Per-node traverse data has to be turned on with AV10 before those objects carry values.
Minimum points to map
The short list most integrators start with — enough to run the unit from a BMS. Map more as the job needs.
| Object | Name | Why | Access |
|---|---|---|---|
| AI 1 | AMD[-1] Airflow | Average airflow | Read |
| AI 2 | AMD[-1] Temperature | Average temperature | Read |
| AI 4 | AMD Alarm Status | High/low airflow alarm | Read |
Network setup
- The Device object is listed as instance 2; Object_Identifier, name, description, APDU timeout, Max Master (up to 127) and Max Info Frames (up to 255) are writable.
- Network Port object NP1 (newer firmware) holds the BACnet IP mode and foreign-device BBMD settings on B/M/S variants, and Max Master/Max Info Frames on B/C variants.
Watch out for
- Objects only exist when the matching probes, options and transmitter variant are present.
- AV2 means AMD[-2] Area on EB-Flow2 units but Fan 1 Area on fan-probe units.
- Analog Input present values can only be written after setting Out_Of_Service.
EBTRON Advantage IV Airflow Transmitter (GTx116e / GTx108e) BACnet objects
Type: AI, AO, AV, BI, BO, BV, MI/MO/MV (multi-state) · Access: Read read-only, Write writable, Command writable with a priority array.
| Description | States | |||||
|---|---|---|---|---|---|---|
| DEV | 2 | {Product Name} | Device object; name, description, location, instance writable | Write | ||
| AImin | 1 | AMD[-1] Airflow | Average airflow, location 1 | FPM, CFM [m/s, L/s] | Read | |
| AImin | 2 | AMD[-1] Temperature | Average temperature, location 1 | °F [°C] | Read | |
| AI | 3 | AMD Pressure | Pressure; -B probe type only | iWG [Pa] | Read | |
| AImin | 4 | AMD Alarm Status | Airflow alarm status | Read | 0=No Alarm; 1=High Alarm; 2=Low Alarm; 3=Both | |
| AI | 5 | AMD Fan Alarm Status | Fan alarm status; Advantage IV fan (-F/An) probes | Read | 0=No alarm; 1=Alarm | |
| AI | 11 | AMD-2 Airflow | Average airflow, location 2; EB-Flow2 dual location | FPM, CFM [m/s, L/s] | Read | |
| AI | 12 | AMD-2 Temperature | Average temperature, location 2; EB-Flow2 dual location | °F [°C] | Read | |
| AI | 21 | RH | Relative humidity; -P probe with H option | % RH | Read | |
| AI | 22 | Dew Point | Dew point; -P probe with H option | °F [°C] | Read | |
| AI | 23 | Enthalpy | Enthalpy; -P probe with H option | Btu/lb [kJ/kg] | Read | |
| AV | 1 | AMD[-1] Area | Duct/opening area, location 1 | sq ft [sq m] | Read | |
| AV | 2 | AMD[-2] Area | Area, location 2; EB-Flow2 dual location | sq ft [sq m] | Read | |
| AV | 2 | Fan 1 Area | Fan 1 inlet area; fan probes, newer firmware | sq ft [sq m] | Read | |
| AV | 3 | Fan 2 Area | Fan 2 inlet area; fan probes, newer firmware | sq ft [sq m] | Read | |
| AV | 4 | Fan 3 Area | Fan 3 inlet area; fan probes, newer firmware | sq ft [sq m] | Read | |
| AV | 5 | Fan 4 Area | Fan 4 inlet area; fan probes, newer firmware | sq ft [sq m] | Read | |
| AV | 6 | Fan 5 Area | Fan 5 inlet area; fan probes, newer firmware | sq ft [sq m] | Read | |
| AV | 7 | Fan 6 Area | Fan 6 inlet area; fan probes, newer firmware | sq ft [sq m] | Read | |
| AV | 8 | Fan 7 Area | Fan 7 inlet area; fan probes, newer firmware | sq ft [sq m] | Read | |
| AV | 9 | Fan 8 Area | Fan 8 inlet area; fan probes, newer firmware | sq ft [sq m] | Read | |
| AV | 10 | Traverse Status | Enables per-node traverse data | Write | 0=Off; 1=Flow; 2=Temp; 3=Both | |
| AV | 21 | Node 1 Velocity | Sensor node 1 velocity; enable via AV10 | FPM [m/s] | Read | |
| AV | 22 | Node 2 Velocity | Sensor node 2 velocity; enable via AV10 | FPM [m/s] | Read | |
| AV | 23 | Node 3 Velocity | Sensor node 3 velocity; enable via AV10 | FPM [m/s] | Read | |
| AV | 24 | Node 4 Velocity | Sensor node 4 velocity; enable via AV10 | FPM [m/s] | Read | |
| AV | 25 | Node 5 Velocity | Sensor node 5 velocity; enable via AV10 | FPM [m/s] | Read | |
| AV | 26 | Node 6 Velocity | Sensor node 6 velocity; enable via AV10 | FPM [m/s] | Read | |
| AV | 27 | Node 7 Velocity | Sensor node 7 velocity; enable via AV10 | FPM [m/s] | Read | |
| AV | 28 | Node 8 Velocity | Sensor node 8 velocity; enable via AV10 | FPM [m/s] | Read | |
| AV | 29 | Node 9 Velocity | Sensor node 9 velocity; enable via AV10 | FPM [m/s] | Read | |
| AV | 30 | Node 10 Velocity | Sensor node 10 velocity; enable via AV10 | FPM [m/s] | Read | |
| AV | 31 | Node 11 Velocity | Sensor node 11 velocity; enable via AV10 | FPM [m/s] | Read | |
| AV | 32 | Node 12 Velocity | Sensor node 12 velocity; enable via AV10 | FPM [m/s] | Read | |
| AV | 33 | Node 13 Velocity | Sensor node 13 velocity; enable via AV10 | FPM [m/s] | Read | |
| AV | 34 | Node 14 Velocity | Sensor node 14 velocity; enable via AV10 | FPM [m/s] | Read | |
| AV | 35 | Node 15 Velocity | Sensor node 15 velocity; enable via AV10 | FPM [m/s] | Read | |
| AV | 36 | Node 16 Velocity | Sensor node 16 velocity; enable via AV10 | FPM [m/s] | Read | |
| AV | 41 | Node 1 Temperature | Sensor node 1 temperature; enable via AV10 | °F [°C] | Read | |
| AV | 42 | Node 2 Temperature | Sensor node 2 temperature; enable via AV10 | °F [°C] | Read | |
| AV | 43 | Node 3 Temperature | Sensor node 3 temperature; enable via AV10 | °F [°C] | Read | |
| AV | 44 | Node 4 Temperature | Sensor node 4 temperature; enable via AV10 | °F [°C] | Read | |
| AV | 45 | Node 5 Temperature | Sensor node 5 temperature; enable via AV10 | °F [°C] | Read | |
| AV | 46 | Node 6 Temperature | Sensor node 6 temperature; enable via AV10 | °F [°C] | Read | |
| AV | 47 | Node 7 Temperature | Sensor node 7 temperature; enable via AV10 | °F [°C] | Read | |
| AV | 48 | Node 8 Temperature | Sensor node 8 temperature; enable via AV10 | °F [°C] | Read | |
| AV | 49 | Node 9 Temperature | Sensor node 9 temperature; enable via AV10 | °F [°C] | Read | |
| AV | 50 | Node 10 Temperature | Sensor node 10 temperature; enable via AV10 | °F [°C] | Read | |
| AV | 51 | Node 11 Temperature | Sensor node 11 temperature; enable via AV10 | °F [°C] | Read | |
| AV | 52 | Node 12 Temperature | Sensor node 12 temperature; enable via AV10 | °F [°C] | Read | |
| AV | 53 | Node 13 Temperature | Sensor node 13 temperature; enable via AV10 | °F [°C] | Read | |
| AV | 54 | Node 14 Temperature | Sensor node 14 temperature; enable via AV10 | °F [°C] | Read | |
| AV | 55 | Node 15 Temperature | Sensor node 15 temperature; enable via AV10 | °F [°C] | Read | |
| AV | 56 | Node 16 Temperature | Sensor node 16 temperature; enable via AV10 | °F [°C] | Read | |
| AV | 101 | Fan 1 Flow | Fan 1 airflow; Advantage IV fan probes | CFM, FPM [L/S, m/s] | Read | |
| AV | 102 | Fan 2 Flow | Fan 2 airflow; Advantage IV fan probes | CFM, FPM [L/S, m/s] | Read | |
| AV | 103 | Fan 3 Flow | Fan 3 airflow; Advantage IV fan probes | CFM, FPM [L/S, m/s] | Read | |
| AV | 104 | Fan 4 Flow | Fan 4 airflow; Advantage IV fan probes | CFM, FPM [L/S, m/s] | Read | |
| AV | 105 | Fan 5 Flow | Fan 5 airflow; Advantage IV fan probes | CFM, FPM [L/S, m/s] | Read | |
| AV | 106 | Fan 6 Flow | Fan 6 airflow; Advantage IV fan probes | CFM, FPM [L/S, m/s] | Read | |
| AV | 107 | Fan 7 Flow | Fan 7 airflow; Advantage IV fan probes | CFM, FPM [L/S, m/s] | Read | |
| AV | 108 | Fan 8 Flow | Fan 8 airflow; Advantage IV fan probes | CFM, FPM [L/S, m/s] | Read | |
| AV | 111 | Fan 1 Temperature | Fan 1 temperature; Advantage IV fan probes | °F [°C] | Read | |
| AV | 112 | Fan 2 Temperature | Fan 2 temperature; Advantage IV fan probes | °F [°C] | Read | |
| AV | 113 | Fan 3 Temperature | Fan 3 temperature; Advantage IV fan probes | °F [°C] | Read | |
| AV | 114 | Fan 4 Temperature | Fan 4 temperature; Advantage IV fan probes | °F [°C] | Read | |
| AV | 115 | Fan 5 Temperature | Fan 5 temperature; Advantage IV fan probes | °F [°C] | Read | |
| AV | 116 | Fan 6 Temperature | Fan 6 temperature; Advantage IV fan probes | °F [°C] | Read | |
| AV | 117 | Fan 7 Temperature | Fan 7 temperature; Advantage IV fan probes | °F [°C] | Read | |
| AV | 118 | Fan 8 Temperature | Fan 8 temperature; Advantage IV fan probes | °F [°C] | Read | |
| Other | 1 | Network Port | Network Port object (NP1); IP/BBMD or MS/TP settings | Write |
No points match these filters.
Integration notes
- All objects are conditional: they only appear if the matching sensors/probe type/transmitter variant are present.
- AV2 is AMD[-2] Area on EB-Flow2 dual-location units but Fan 1 Area on fan-probe units; AV2-AV9 carry Fan 1-8 Area.
- Node velocity/temperature objects (AV21-AV56) are only populated after enabling traverse data in AV10, and only up to the installed node count.
- Analog Input present values can only be written after setting Out_Of_Service; COV increment and units are writable.
- Units follow the transmitter's IP/SI setting (bracketed values are SI).
Check it against the live device. A points list tells you what the controller can expose; the unit in front of you may differ by firmware or installed options. Easy BACnet scans a network for BACnet IP devices from an Android phone, reads every object on the Advantage IV Airflow Transmitter (GTx116e / GTx108e) and exports what it actually has to Excel — free. New to BACnet? Start with what a BACnet points list is and what the object types mean.
Questions about the EBTRON Advantage IV Airflow Transmitter (GTx116e / GTx108e)
How many BACnet points does the EBTRON Advantage IV Airflow Transmitter (GTx116e / GTx108e) have?
This list has 71 BACnet objects: 10 analog inputs, 59 analog values, 1 device, 1 other. The exact set on a given unit depends on its firmware, installed options and configuration.
Which EBTRON Advantage IV Airflow Transmitter (GTx116e / GTx108e) BACnet points are writable?
3 of the 71 objects accept a write. Points marked Command have a priority array: a write holds until it is released, so release it back to automatic when you are done.
Where is the official EBTRON Advantage IV Airflow Transmitter (GTx116e / GTx108e) BACnet documentation?
The source is Table F-2 BACnet Object List (Network BACnet Object List) (Network_BACnet_Object_List_r1g), published free by EBTRON at https://ebtron.com/wp-content/uploads/Network_BACnet_Object_List.pdf.
What are the minimum BACnet points to integrate the EBTRON Advantage IV Airflow Transmitter (GTx116e / GTx108e)?
Start with AI 1 AMD[-1] Airflow (Average airflow); AI 2 AMD[-1] Temperature (Average temperature); AI 4 AMD Alarm Status (High/low airflow alarm).
How do I check these points on the real Advantage IV Airflow Transmitter (GTx116e / GTx108e)?
Scan the network with a BACnet IP browser such as Easy BACnet, open the device and compare its object list with this table. Anything missing is usually an option that isn't installed or a point that is disabled in the controller's configuration.
More EBTRON BACnet points lists
Source: Table F-2 BACnet Object List (Network BACnet Object List) · Network_BACnet_Object_List_r1g. Object names, instances and units are reproduced as published; descriptions are our own.