BAPI · AIR QUALITY MONITORS & GAS DETECTORS

BAPI Digital CO & NO₂ Sensor

Multi-gas parking-garage / equipment-area sensor for CO and NO₂ with digital BAS communications.

Manufacturer: BAPI

Explosion protection: No Ex certification claimed. Do not treat IP protection or CE marking as ATEX / IECEx approval.

Verified Product Information

Measurement	CO and NO₂
CO range	0–500 ppm
NO₂ range	0–20 ppm
Output	BACnet MS/TP or Modbus RTU (field configurable)

Official Manufacturer Source

Open manufacturer model / catalog information →

Electrical specifications, current availability, measurement claims and hazardous-area approvals depend on the actual configuration and revision. Verify the original manufacturer documentation before specifying equipment.

Digital CO/NO₂ — two toxic gases, two alarm scales

BAPI’s digital parking-garage transmitter lists separate CO 0–500 ppm and NO₂ 0–20 ppm ranges. Those channels require different ventilation alarm points and health-exposure logic rather than one combined ppm threshold. BACnet MS/TP and Modbus RTU are different serial protocols that must be configured correctly with baud/address/point mapping. A ventilation controller may use these readings but a BMS gas transmitter does not independently provide every required certified fire or personal safety alarm.

BAPI Digital CO & NO₂ — two independent parking-garage hazards — engineering specifications

Original maker documentation distinguishes the ordered hardware’s measured channels, outputs and qualified use cases. Optional feature lists do not establish that every product variant contains every sensor, controller or protocol.

Feature	OEM information	Engineering limits
Target gases	Carbon monoxide 0–500 ppm; nitrogen dioxide 0–20 ppm as selected sensing elements	Two gases require different alarm setpoints; never scale NO₂ using a CO 500-ppm BACnet point.
Mounting options	Duct probe or rough-service wall/beam enclosure	Select sensor exposure and service access based on garage exhaust/traffic pattern.
Bus choices	Field-configurable BACnet MS/TP or Modbus RTU	Configure RS485 address, baud/parity, bus termination and BAS object mapping.
Other channels	Optional temperature and relative humidity	A gas-only model does not automatically provide calibrated RH/temperature.
Self-check and maintenance	Maker indicates daily element self-test and approximately seven-year nominal element life	Automatic electrical test cannot replace span gas verification or gas-response testing.
Certificates	Original vendor offers electronic CO and NO₂ calibration certificates on request	Calibration paperwork and real-time post-installation acceptance are distinct.
Application	Parking structures, warehouses, equipment spaces	Maintain alarm-to-fan/ventilation interlocks and fail-safe BACnet loss response.

Commissioning and application guidance

Build the parking garage BAS schedule with separate CO ppm and NO₂ ppm point names, thresholds and escalation stages. The ordered part determines installed elements and modbus priority register mapping; optional temperature/RH changes sensor order and address locations. Check the actual wiring manual and stop bits rather than guessing a universal fixed register layout. Self-test refers to on-board element diagnostics; a periodic span gas functional check remains important. BAPI’s device is an air-quality/control sensor, not proof that the complete parking-garage emergency ventilation system meets a regional safety standard.

Original manufacturer: Official model information, technical documents and configurator. Confirm final ordered SKU, supplied options and current data before control or safety-critical use.

AirAlign independent model-specific technical review · 25 October 2026. OEM technical claims are not third-party calibration or Ex/SIL approval.