BAPI BA/10K-3-H300-O-WP Outside Air Humidity Temperature Sensor with 10K-3 Thermistor

The BAPI BA/10K-3-H300-O-WP is a professional-grade outside air (OSA) humidity and temperature sensor designed specifically for HVAC and building automation system applications. This combination sensor features a 10K Type 3 thermistor for accurate temperature measurement and a 3% accuracy humidity transmitter, making it ideal for outdoor air monitoring, economizer control, psychrometric calculations, enthalpy measurement, and dew point monitoring.

Key Features:

• 10K Type 3 thermistor temperature sensor with ±0.36°F accuracy from 32 to 158°F
• 3% humidity accuracy from 10% to 90% RH at 25°C, non-condensing
• Selectable output: 0-5VDC, 0-10VDC, or 4-20mA
• Weatherproof enclosure rated NEMA 4/IP66 for outdoor installation
• Replaceable 80 micron stainless steel sintered filter protects sensor element
• Resistive sensing technology with ceramic substrate for long-term stability
• 15-28 VAC/VDC power supply compatibility
• Response time less than 5 seconds in moving air
• Low drift specification of 0.5% per year

The weatherproof (WP) enclosure measures 2.75" x 4.5" x 2.2" and features a hinged cover for easy field termination. The sensor probe extends 2.4" below the enclosure and should be mounted in a permanently shaded area with the probe pointed downward to prevent direct sunlight exposure and moisture accumulation. Compatible with 18-26 AWG wiring using sealant-filled crimp connectors or wire nuts for reliable outdoor connections.