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The perfect solution to a range of industry challenges…

BAPI makes a complete line of accessories for the HVAC/R industry including power supplies, voltage converters, thermostat guards, leak detectors and test instruments. All units are designed to make installation easier and more reliable, or to solve common industry challenges and shortcomings.

BAPI’s power supplies and voltage converters are available in compact, single-output 350mA models or in multiple-output two and three amp models. The BAPI-Guard is one of the few thermostat guards on the market that is rugged and attractive and yet has exceptional air flow, while the suite and NIST-traceable testing probes — the Blü-Test — aids in commissioning by communicating via Bluetooth with smart phones and tablets, eliminating cords, clipboards and meters.

Blu-test probes

Blü-Test Test Instruments

  • Handheld Bluetooth probes with local LED display
  • Temperature, humidity, and pressure sensors
  • Communicates with your smart device
bapi-guard thermostat protector


  • Prevents tampering, damage and unauthorized adjustment
  • Exceptional airflow for proper thermostat operation
  • Low profile design with two sizes to fit most thermostats
Weather Shade with outside air sensor

Weather Shade

  • Improves accuracy by blocking solar heat gain
  • Simple and sturdy mounting method
  • UV-Stabilized plastic prevents yellowing
vc2000 with backplate

VC2000 Voltage Converter

  • Compact and cost-effective
  • Regulated and adjustable 1.2 VDC to 24 VDC output
  • Output protected against overload and accidental short circuit
vc350a-ez mounted on snaptrack

VC350A-EZ Voltage

  • Self-resetting thermal fuse
  • Operation and fault LED indicators
  • Output protected against overload and accidental shorting
Water leak detector with rope sensor

Water Leak Detector

  • Detection within 5 seconds with local LED alarm indication
  • 5 amp or 0.5 amp relays @ 30VAC/DC
  • One piece, rope or remote sensor design
light level sensor

Light Level Sensor

  • Available with foot candle or lux ranges
  • Extremely sensitive, even in dim lighting (<10 foot candle or 108 lux)
  • Rugged and watertight enclosure