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CO2 sensor probe (CO2, humidity, temperature, pressure) · BACnet points list
E+E Elektronik EE872 OM CO2 probe (BACnet MS/TP) BACnet points list
Updated 12 November 2026Unofficial source
The EE872 is a CO2 probe that runs as a BACnet MS/TP master with six Analog Inputs. The M13 version adds temperature, humidity, ambient pressure and dew point to the CO2 values; on the M10 those four objects exist but report NaN with Reliability NO_SENSOR.
This page lists 6 BACnet objects for the E+E Elektronik EE872 OM CO2 probe (BACnet MS/TP) — 0 of them writable — with each object’s type, instance number, name, engineering units and access. It is re-typed from a copy of E+E Elektronik’s documentation hosted by Instrumart, not by E+E Elektronik itself, so treat it as unofficial.
- Manufacturer
- E+E Elektronik
- Model
- EE872 OM CO2 probe (BACnet MS/TP)
- Equipment
- CO2 sensor probe (CO2, humidity, temperature, pressure)
- Equipment type
- Thermostats, sensors & meters
- BACnet objects
- 6 (0 writable)
- Transport
- BACnet MS/TP
- Firmware
- 1.1
- Also known as
- EE872, EE872OM, EE872-M10, EE872-M13, E+E EE872 BACnet
- Source document
- BACnet PICS EE872OM · PICS_EE872OM v1.1 · rev. 10.03.2021 (unofficial copy, hosted by Instrumart)
Reference only, provided as-is: verify against E+E Elektronik’s current documentation and the live device before use. Not official E+E Elektronik information. Terms of use.
BMS integration notes: E+E Elektronik EE872 OM CO2 probe (BACnet MS/TP)
Set a unique device instance and MAC address, then poll AI 4 for CO2. M13 probes also give temperature, humidity and pressure.
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 4 | CO2 | CO2, mean value | Read |
| AI 0 | T | Temperature (M13 only) | Read |
| AI 1 | RH | Relative humidity (M13 only) | Read |
Network setup
- Device instance (0-4194302) and device name are writable and kept in non-volatile memory; the default name is the model plus 8 unique characters.
- RS485 settings are one writable string property, default "38400-8n1"; baud 9600-115200, 8 data bits, no parity, 1 stop bit fixed.
- Max Master is writable, up to 127.
- ReinitializeDevice and DeviceCommunicationControl need the password printed in the PICS.
Watch out for
- COV reporting stays off until COV_Increment is set; COV messages are broadcast (no subscription list).
- On the M10, AI 0-3 read NaN with a FAULT event state; don't alarm on them.
E+E Elektronik EE872 OM CO2 probe (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 | 0 | T | Temperature (M13 probe only) | °C / °F / K | Read | |
| AImin | 1 | RH | Relative humidity (M13 probe only) | %rH | Read | |
| AI | 2 | p | Ambient pressure (M13 probe only) | mbar / psi | Read | |
| AI | 3 | Td | Dew point temperature (M13 probe only) | °C / °F / K | Read | |
| AImin | 4 | CO2 | CO2 mean value | ppm | Read | |
| AI | 5 | CO2raw | CO2 raw value | ppm | Read |
No points match these filters.
Integration notes
- Object list from the PICS sections 11-12 (v1.1, dated 10.03.2021).
- On M10 probes the unsupported objects have Present_Value NaN, Event_State FAULT and Reliability NO_SENSOR.
- All objects are read-only except Present_Value while Out_Of_Service is true.
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 EE872 OM CO2 probe (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 E+E Elektronik EE872 OM CO2 probe (BACnet MS/TP)
How many BACnet points does the E+E Elektronik EE872 OM CO2 probe (BACnet MS/TP) have?
This list has 6 BACnet objects: 6 analog inputs. The exact set on a given unit depends on its firmware, installed options and configuration.
Which E+E Elektronik EE872 OM CO2 probe (BACnet MS/TP) BACnet points are writable?
None of the listed objects are marked writable in the source documentation.
Where is the official E+E Elektronik EE872 OM CO2 probe (BACnet MS/TP) BACnet documentation?
E+E Elektronik does not publish it on its own website. This list comes from BACnet PICS EE872OM (PICS_EE872OM v1.1), revision 10.03.2021, a copy hosted by Instrumart at https://www.instrumart.com/assets/ee-ee872-co2-rh-temperature-pressure-probe-bacnet-protocol-implementation.pdf. Ask E+E Elektronik or its representative for the current revision.
What are the minimum BACnet points to integrate the E+E Elektronik EE872 OM CO2 probe (BACnet MS/TP)?
Start with AI 4 CO2 (CO2, mean value); AI 0 T (Temperature (M13 only)); AI 1 RH (Relative humidity (M13 only)).
How do I check these points on the real EE872 OM CO2 probe (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 E+E Elektronik BACnet points lists
- Differential pressure sensor
E+E Elektronik EE600D / EE610D differential pressure transmitter (BACnet MS/TP)
E+E EE600 and EE610 differential pressure transmitters with the RS485 BACnet MS/TP output.
Also known as: EE600D, EE610D, EE600, EE610, E+E EE600 BACnet - Room sensor (CO2, humidity, temperature)
E+E Elektronik EE800D room CO2, humidity and temperature transmitter (BACnet MS/TP)
E+E EE800 room transmitters with the RS485 BACnet MS/TP output.
Also known as: EE800D, EE800, E+E EE800 BACnet - Duct sensor (CO2, humidity, temperature)
E+E Elektronik EE850D / EE820D duct CO2 transmitter (BACnet MS/TP)
E+E EE850 CO2 / humidity / temperature duct transmitters and EE820 CO2 transmitters with the RS485 BACnet MS/TP output.
Also known as: EE850D, EE820D, EE850, EE820, E+E EE850 BACnet, E+E EE820 BACnet - Room sensor (temperature, humidity, CO2)
E+E Elektronik Room Sensor RS485 BACnet (TES201, HTS201, CDS201)
E+E Elektronik room sensors with RS485 BACnet MS/TP: TES201 (temperature), HTS201 (humidity/temperature) and CDS201 (CO2/humidity/temperature).
Also known as: TES201, HTS201, CDS201, E+E Room Sensor RS485, E+E room sensor BACnet MS/TP
Source: BACnet PICS EE872OM · PICS_EE872OM v1.1 · rev. 10.03.2021. Object names, instances and units are reproduced as published; descriptions are our own.