UNI-T UT336V Wireless Digital Vacuum Gauge with Bluetooth

Main Product Features

• Wide vacuum measurement range from 1 to 19,000 microns with high resolution down to 1 micron.
• Integrated Bluetooth connectivity for mobile app monitoring, real-time sync, and PDF/CSV report exports.
• Compatible with A1, A2L, A2, A3, and select B1 refrigerants (not suitable for ammonia NH3/R717).
• Intelligent dehydration evaluation displaying water saturation temperature, ΔT, and H₂O status.
• Acoustic and visual alarms (buzzer and LED) upon reaching user-defined target vacuum levels.
• Internal data logger storing up to 8,000 measurement records.
• Rugged, dust- and water-resistant housing rated to IP54 with an integrated hanging hook.
• Overpressure safety with overload protection up to 27.5 bar via a standard 1/4 inch SAE interface.

Professional Deep Evacuation for Refrigeration and Heat Pumps

Proper evacuation is the most critical phase during the commissioning and servicing of modern HVAC and refrigeration circuits. Non-condensable gases and residual moisture drastically reduce efficiency, cause acid formation, and lead to premature compressor failure. The UNI-T UT336V wireless digital vacuum gauge provides service engineers and refrigeration technicians with the precision and reliability needed to ensure systems are thoroughly dehydrated before charging.

Equipped with an advanced pirani-style sensor system, the UT336V measures pressures from atmospheric down to 1 micron with exceptional detail. The unit supports all common international vacuum units, including microns, mBar, Pa, kPa, hPa, mTorr, Torr, mmHg, inHg, inH₂O, and psia. Whether installing residential split air conditioners, performing complex heat pump maintenance, or servicing commercial multi-stage refrigeration systems, the UT336V provides unambiguous data at every stage of the evacuation process.

Real-Time Bluetooth Monitoring and Reliable Documentation

Working on elevated outdoor heat pump units or inside plant rooms often requires technicians to move between the vacuum pump and control panels. Thanks to integrated Bluetooth technology, the UT336V pairs directly with your mobile device via the companion app. Real-time graphs and live data updates allow technicians to monitor vacuum progression from a safe distance, verify system tightness through pressure rise decay tests, and generate professional PDF or CSV commissioning logs for customer verification. Additionally, the instrument seamlessly pairs in real-time with the vacuum mode of the UNI-T UT336E digital manifold gauge.

Moisture Assessment and Target Vacuum Management

Evacuation is not merely about removing air; it is about evaporating trapped water. The UT336V features an integrated calculation of water saturation temperature alongside ambient temperature monitoring (-20 to 60 °C) to calculate ΔT (Tamb - TH₂O). This automated H₂O status assessment shows whether liquid water is still boiling off or if the system has reached true dry condition. Dual audio-visual feedback, including bright LED indicators and an audible buzzer, instantly alerts you once your pre-configured target micron threshold has been attained.

Certified Safety, Robust Build, and A2L Refrigerant Suitability

Modern heat pumps and cooling appliances increasingly utilise mildly flammable A2L refrigerants like R32 or natural hydrocarbons such as R290 (A3). The UNI-T UT336V is engineered for modern workshops and field environments, boasting broad compatibility across A1, A2L, A2, A3, and partial B1 refrigerants. Technicians can rely on confirmed industrial standards: the device fully complies with European CE safety requirements and RoHS regulations. Built into a durable casing rated at IP54, it offers dependable protection against splashes and airborne dust. An overpressure tolerance of up to 27.5 bar protects the delicate internal sensor elements should positive system pressures inadvertently be applied during manifold manipulation.

Technical Specifications

Frequently Asked Questions

Can the UNI-T UT336V be used with flammable A2L or A3 refrigerants?

Yes, the UT336V is compatible with modern A1, A2L, A2, A3, and select B1 refrigerants commonly used in heat pumps and cooling appliances. Please note that the gauge must not be used with ammonia (NH3 / R717) refrigerants.

What happens if positive pressure is applied to the gauge?

The UT336V is built with an integrated overload pressure rating of up to 27.5 bar, protecting internal sensing mechanisms from unexpected positive pressures during system servicing.

How does the H₂O status function assist in dehydration?

The gauge calculates the evaporation point of moisture by comparing current vacuum pressure with the measured ambient temperature (ΔT). This displays whether residual liquid water is actively boiling off inside the pipework or if true dehydration has been reached.

Can vacuum reports be saved and exported to customers?

Yes, connecting the gauge to the dedicated mobile app via Bluetooth allows real-time logging. Technicians can export completed evacuation and pressure rise decay graphs in standardized CSV or PDF formats.

What is included in the scope of delivery?

The package contains the UNI-T UT336V Wireless Vacuum Gauge, three 1.5 V AA batteries, a hanging hook, a protective hard cloth bag, a user manual, a safety guide, and a download operation guide.