BMS Controls Peripherals (BAPI)

Wireless monitoring & control

• Battery for powered sensors / devices

Battery powered external sensors
• Battery powered external / industrial mounting sensor and battery

Battery powered internal sensors
• Battery powered internal CO2 sensor
• Battery powered internal space mounting temperature & humidity sensor
• Battery powered LCD thermostat with relay output, alarm levels for sensor and battery

Directional external panel antennas
• Directional wall mounting external panel antenna
• Omni-directional surface mounting external antenna
• Omni-directional wall mounting external antenna

Home energy meters
• Home energy meter (DIN mounting) 

Phase energy meters
• Commercial 3-phase / Duel 3-phase

Powered AI/DI modules
• Powered AI/DI module with 10mW repeater function
• Powered AI/DI-pulse module with 10mW repeater function

Powered multi IO module
• Battery powered IO module
• Powered multi-io module with 10mW repeater function

Remote controlled plug socket
• Remote controlled plug-in socket with energy meter

Remote relay
• 10 amp remote relay with energy meter

• Thermistor NTC sensor

Zigbee repeaters
• Zigbee repeater with 10mW amplifier, 12/24Vdc supply
• Zigbee repeater with 10mW amplifier, 230VAC

• Handheld diagnostic tool
• Network diagnostic and monitoring application for Windows OS

• Modbus RS232 to high powered wireless system gateway
• Modbus RS485 to high powered wireless system gateway
• Modbus TCP/ethernet to high powered wireless system gateway
• Modbus USB(RS232) to high powered wireless system gateway




Air quality


Building Automation Products, Inc. (BAPI) is a premier sensor manufacturer for HVAC/R sensors. Specializing in sensors for temperature, humidity, pressure, wireless and air quality monitoring. Using only the highest quality sensing elements and meticulous manufacturing, testing & quality assurance procedures.

Over the past 20 years BAPI has forged a place in the HVAC/R industry, with their area of expertise focused on advanced sensor technology for HVAC & R applications. Originating in Cross Plains, WI in 1993, BAPI’s first facility was literally conducted out of a small two-car garage. Today, BAPI serves customers around the globe from their 50,000 sq foot facility based in rural southwestern Wisconsin. BAPI continues the “it’s in the details” tradition, using the highest quality sensing elements paired with state of the art manufacturing, meticulous testing and quality assurance procedures to ensure a reliable product everytime. 

5 year warranty

BAPI products are designed and manufactured to last. They back up that claim by offering a 5 year warranty across all products.

A lifetime limited warranty is also available on many of their single point, room and non-room temperature sensors.


BAPI stand behind their products, and stand behind you! Not only do they provide a comprehensive warranty, but they also take it a step further…

If their product fails due to a manufacturing noncomformance they will not only repair or replace the product, they will also pay the labour costs to do so.

BAPI original

BAPI Originals are made up of quality vendors, talented employees and committed customers. These three ingredients combined create industry leading, original solutions. Products that bear the “Another Original” stamp were designed by BAPI with quality components and driven by customer feedback to solve common HVAC/R problems.

Product catalogue

Mini catalogue