The UNI-T UT336P is a wireless digital pressure gauge specifically designed for the installation, maintenance, and debugging of HVAC/R (Heating, Ventilation, Air Conditioning, and Refrigeration) systems.
Unlike general-purpose gauges, this device is built for long-term monitoring and integrates with mobile applications to calculate critical system performance metrics.
Key Technical Specifications
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Pressure Range: -1 to 60 bar (-14.5 to 870.2 psi)
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Accuracy: ±0.5% Full Scale (FS)
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Connection: 1/4" SAE standard refrigerant connector
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Data Logging: Internal memory for up to 8,000 sets of data for offline recording.
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Connectivity: Bluetooth integration via the iENV App for real-time monitoring and PDF/CSV report generation.
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Refrigerant Database: Pre-loaded with 10 common refrigerants; over 94 types are available and switchable through the app.
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Protection: IP54 rating (dust and splash resistant), suitable for outdoor field use.
Advanced Features for HVAC/R Professionals
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Superheat & Subcooling Calculation: When paired with the optional UT-T19 temperature clamp (connected via the 3.5mm port), the device or app can automatically calculate superheat and subcooling levels, which are essential for determining if a system has the correct refrigerant charge.
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Dual LED Indicators: Features high (Red) and low (Blue) pressure indicators for quick visual status checks.
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High/Low Alarms: Users can set custom pressure thresholds that trigger sound and vibration alerts on a connected smartphone.
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Rugged Design: Includes a built-in hook and hand strap for hands-free operation while working on ladders or in tight spaces.
Common Applications
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Automotive AC Maintenance: Checking pressure levels and leaks in car air conditioning systems.
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Residential & Commercial HVAC: Commissioning new heat pump installations and routine servicing.
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Cold Chain Logistics: Monitoring refrigeration systems in food storage and transport.
Note: This device is compatible with A1, A2L, A2, and A3 refrigerants but cannot be used with ammonia (R717) systems.