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Duct airflow velocity sensor · BACnet points list
Dwyer Series AVPT pencil-style air velocity transmitter, BACnet MS/TP BACnet points list
Updated 12 November 2026
The AVPT is a pencil-style thermal anemometer probe for duct air velocity, sold with either analog outputs or a BACnet MS/TP output. On BACnet it exposes velocity and air temperature as four Analog Inputs (each in imperial and metric), plus objects to set the MS/TP address, the baud rate and a factory reset.
This page lists 7 BACnet objects for the Dwyer Series AVPT pencil-style air velocity transmitter, BACnet MS/TP — 3 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from Dwyer’s own free documentation, linked below.
- Manufacturer
- Dwyer
- Model
- Series AVPT pencil-style air velocity transmitter, BACnet MS/TP
- Equipment
- Duct airflow velocity sensor
- Equipment type
- Thermostats, sensors & meters
- BACnet objects
- 7 (3 writable)
- Transport
- BACnet MS/TP
- Firmware
- Not stated
- Default device instance
- 607000 + MS/TP address (607xxx)
- Also known as
- AVPT, Series AVPT, AVPT BACnet, DwyerOmega AVPT, AVPT pencil style air velocity transmitter
Reference only, provided as-is: verify against Dwyer’s current documentation and the live device before use. Not official Dwyer information. Terms of use.
BMS integration notes: Dwyer Series AVPT pencil-style air velocity transmitter, BACnet MS/TP
Set a unique MS/TP address (PIV 1, then power cycle), let auto-baud lock onto the bus, and read velocity and temperature in the units you need (AI 1-4).
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 | Velocity FPM | Duct air velocity, FPM | Read |
| AI 3 | Temperature F | Duct air temperature, °F | Read |
Network setup
- Ships at MS/TP address 127; write the new address to PIV 1 and reset or power cycle the device.
- Auto-baud is on by default (9600 to 115200, 8N1); it locks in after the first Who-Is or ReadProperty it answers.
- Device instance defaults to 607xxx (xxx = address) until a specific instance is written.
- DeviceCommunicationControl and ReinitializeDevice need the password "Dwyer".
- Max Master changes need a power cycle.
Watch out for
- The device may not answer while auto-baud is still detecting the bus speed.
- Default comms settings can also be restored by wiring: briefly connect the white CFG wire to ground as the manual describes.
Dwyer Series AVPT pencil-style air velocity transmitter, BACnet MS/TP 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 | |||||
|---|---|---|---|---|---|---|
| AImin | 1 | Velocity FPM | Air velocity | ft/min | Read | |
| AI | 2 | Velocity MPS | Air velocity | m/s | Read | |
| AImin | 3 | Temperature F | Air temperature | °F | Read | |
| AI | 4 | Temperature C | Air temperature | °C | Read | |
| PIV | 1 | Device Address | MS/TP MAC address, 0-127; reset needed | Write | ||
| MV | 1 | Serial Baud Rate | MS/TP baud rate; Auto Baud is default | Write | 1=9600, 2=19200, 3=38400, 4=57600, 5=76800, 6=115200, 7=Auto Baud | |
| BV | 1 | Restore Factory Defaults | Write active then reset to restore defaults | Write | 0=Inactive, 1=Active |
No points match these filters.
Object ID lookup: Dwyer Series AVPT pencil-style air velocity transmitter, BACnet MS/TP point IDs by name
Integration notes
- Velocity and temperature are each given twice, in imperial and metric units, as separate objects.
- The overview table prints BV 1 as "Restore Factory Defauls"; the property table spells it "Restore Factory Defaults".
- Factory address is 127; the device instance follows the address until a specific instance is written.
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. This list is provided as-is for reference only and may contain mistakes — confirming it before you write, map or commission anything is up to you (terms). Easy BACnet scans a network for BACnet IP devices from an Android phone, reads every object on the Series AVPT pencil-style air velocity transmitter, BACnet MS/TP 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 Dwyer Series AVPT pencil-style air velocity transmitter, BACnet MS/TP
How many BACnet points does the Dwyer Series AVPT pencil-style air velocity transmitter, BACnet MS/TP have?
This list has 7 BACnet objects: 4 analog inputs, 1 binary value, 1 multi-state value, 1 positive integer value. The exact set on a given unit depends on its firmware, installed options and configuration.
Which Dwyer Series AVPT pencil-style air velocity transmitter, BACnet MS/TP BACnet points are writable?
3 of the 7 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 Dwyer Series AVPT pencil-style air velocity transmitter, BACnet MS/TP BACnet documentation?
The source is Series AVPT Pencil Style Air Velocity Transmitter - Specifications, Installation and Operating Instructions (Bulletin AQ-AVPT-C (FR# 444544-00)), revision 11/19, published free by Dwyer at https://assets.dwyeromega.com/manuals-do/AVPT_AVPT_BACnet.pdf.
What are the minimum BACnet points to integrate the Dwyer Series AVPT pencil-style air velocity transmitter, BACnet MS/TP?
Start with AI 1 Velocity FPM (Duct air velocity, FPM); AI 3 Temperature F (Duct air temperature, °F).
How do I check these points on the real Series AVPT pencil-style air velocity transmitter, BACnet MS/TP?
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 Dwyer BACnet points lists
- Airflow velocity sensor
Dwyer Series AVLV low air velocity transmitter, BACnet MS/TP
Dwyer Series AVLV low air velocity transmitters (100-400 FPM ranges) with the BACnet MS/TP option.
Also known as: AVLV, Series AVLV, AVLV BACnet, DwyerOmega AVLV, P-AVLV-B - CO2, humidity and temperature room sensor
Dwyer Series CDTA / CDTC Communicating CO2 Detector
Dwyer Series CDTA (CO2, humidity, temperature) and CDTC (CO2, temperature) wall-mount detectors with setpoint and override, BACnet MS/TP or Modbus RTU.
Also known as: CDTA, CDTC, CDTA-2N000, CDTA-5N000, CDTC-2N000, CDTC-5N000, CDTA-2N000-LCD - Differential pressure sensor / controller
Dwyer Series DHC Digihelic differential pressure controller, BACnet MS/TP
Dwyer Series DHC Digihelic panel-mount differential pressure controllers with two relays, analog outputs and RS-485 set to BACnet MS/TP.
Also known as: DHC, Series DHC, Digihelic, Digihelic DHC, DwyerOmega DHC, DHC-xxx-xxx - CO / NO2 gas sensor
Dwyer Series GSTC carbon monoxide / nitrogen dioxide gas transmitter, BACnet MS/TP
Dwyer Series GSTC carbon monoxide (GSTC-C) and nitrogen dioxide (GSTC-N) gas transmitters with switch-selectable BACnet MS/TP or Modbus RTU.
Also known as: GSTC, GSTC-C, GSTC-N, Series GSTC, DwyerOmega GSTC, CO Detector, NO2 Detector - Insertion electromagnetic BTU / energy meter
Dwyer Series IEFB insertion thermal energy meter, BACnet MS/TP
Dwyer Series IEFB insertion electromagnetic flow meters with inlet/outlet RTDs that calculate thermal energy, on BACnet MS/TP or Modbus RTU.
Also known as: IEFB, Series IEFB, IEFB BTU meter, DwyerOmega IEFB, Series IEF energy meter, F-IEFB - Differential pressure and airflow sensor
Dwyer Series MS2 Magnesense II Differential Pressure Transmitter with BACnet (MS2-B)
Dwyer Series MS2 Magnesense II differential pressure transmitters with BACnet MS/TP (ranges up to 25 in. w.c.).
Also known as: MS2-B, MS2, Magnesense II, P-MS2-B - Differential pressure sensor / transmitter
Dwyer Series MSX-Comms Magnesense Pressure Transmitter
Dwyer Series MSX-Comms Magnesense differential pressure transmitters with BACnet MS/TP or Modbus RTU output.
Also known as: MSX, MSX-Comms, Magnesense MSX, DwyerOmega MSX, MSX BACnet - Humidity and temperature sensor
Dwyer Series RHPX humidity/temperature communicating transmitter, BACnet MS/TP
Dwyer Series RHPX duct, space and outdoor humidity/temperature transmitters with the BACnet MS/TP / Modbus RTU communication option.
Also known as: RHPX, Series RHPX, RHPX Comms, RHPX BACnet, DwyerOmega RHPX, AQ-RHPX-C - Room pressure monitor
Dwyer Series RSME / RSMC Room Status Monitor
Dwyer Series RSME/RSMC room status monitors (built-in differential pressure plus universal and external BACnet inputs) for isolation rooms, labs and cleanrooms.
Also known as: RSME, RSMC, Series RSME, Series RSMC, DwyerOmega RSME, Dwyer room pressure monitor - Ultrasonic BTU / energy meter
Dwyer Series TUF ultrasonic energy meter, BACnet MS/TP (TUF-B)
Dwyer Series TUF ultrasonic heating/cooling energy meters (TUF-150 to TUF-2000) ordered with BACnet MS/TP.
Also known as: TUF, TUF-B, TUF BACnet, Dwyer TUF BTU meter, DwyerOmega TUF
Source: Series AVPT Pencil Style Air Velocity Transmitter - Specifications, Installation and Operating Instructions · Bulletin AQ-AVPT-C (FR# 444544-00) · rev. 11/19. Object names, instances and units are reproduced as published; descriptions are our own.