UNI-T UT336E Digital Manifold Gauge

The UNI-T UT336E Digital Manifold Gauge is a professional HVAC/R diagnostic instrument designed for the installation, commissioning, maintenance, and troubleshooting of refrigeration and heat pump systems. It combines high- and low-side pressure measurement with refrigerant data, system testing functions, data logging, and wireless connectivity to provide technicians with a more complete view of refrigeration system operating conditions.

The UT336E measures pressure across a wide range from -1.00 to +60.00 bar, with a resolution of 0.01 bar and pressure accuracy of ±0.5% FS. Multiple pressure units are supported, including bar, kPa, MPa, psi, kg/cm², cmHg, and inHg, making the instrument suitable for different HVAC/R service environments and technical requirements.

A major advantage of the UT336E is its built-in database containing more than 160 refrigerant types. Based on the selected refrigerant, the instrument can provide evaporation and condensation temperature information and support automatic calculation of important diagnostic parameters such as superheat and subcooling when used with compatible wireless temperature clamps. These calculations help technicians evaluate refrigerant charge and heat-transfer performance during commissioning and service work.

The instrument supports several dedicated operating modes, including refrigeration, heat pump, evacuation, and pressure holding functions. Pressure zeroing and temperature compensation are also available, helping improve measurement reliability during testing procedures. The pressure-holding function can be particularly useful for monitoring pressure changes during leak-testing and system integrity checks.

For field service and documentation, the UT336E can store up to 10,000 data records and communicate wirelessly with compatible accessories and a mobile application. Wireless communication can reach up to 100 meters in open areas, allowing measurement data to be monitored remotely without keeping the technician directly beside the system. The device also supports OTA updates through its connected ecosystem.

A 3.5-inch HD color display provides a clear interface for viewing pressure and system information. The unit features tap-to-wake backlighting, a metal hook for convenient positioning during service work, and an IP54-rated enclosure for protection against dust and water splashes. Power is supplied by a built-in 3.7V 5200mAh rechargeable lithium battery, providing more than 30 hours of operation under specified conditions.

With three 1/4-inch SAE interfaces, compact dimensions of 203 × 117 × 70 mm, and a weight of approximately 836 g, the UNI-T UT336E is suited to professional HVAC/R technicians working on air-conditioning, refrigeration, heat-pump, and related cooling systems.

Features

• Professional digital manifold gauge for HVAC/R service

• High- and low-pressure measurement

• Pressure range up to +60 bar / 870.2 psi

• Pressure accuracy of ±0.5% FS

• Built-in database of 160+ refrigerant types

• Automatic superheat and subcooling calculation with compatible temperature clamps

• Evaporation and condensation temperature display

• Refrigeration and heat-pump modes with automatic detection

• Evacuation and pressure-holding modes

• Up to 10,000 data records

• Wireless connectivity and mobile app support

• 3.5-inch HD color display

• IP54-rated enclosure

• 5200mAh rechargeable lithium battery

• Three 1/4-inch SAE connections

Specifications

• Brand: UNI-T

• Model: UT336E

• Product Type: Digital Manifold Gauge

• Pressure Range: -1.00 to +60.00 bar

• Pressure Resolution: 0.01 bar

• Equivalent Pressure Range: -100 to +6000 kPa / -0.100 to +6.000 MPa

• Pressure Range: -14.5 to +870.2 psi

• Pressure Accuracy: ±0.5% FS

• Pressure Units: bar, kPa, MPa, psi, kg/cm², cmHg, inHg

• Refrigerant Database: 162+ refrigerant types

• Wireless Range: Up to 100 m in open areas

• Data Storage: Up to 10,000 records

• Display: 3.5-inch HD color screen

• Interfaces: 3 × 1/4-inch SAE

• Protection Rating: IP54

• Battery: 3.7V 5200mAh rechargeable lithium battery

• Battery Life: More than 30 hours under specified conditions

• Operating Temperature: -20°C to +50°C

• Dimensions: 203 × 117 × 70 mm

• Weight: Approximately 836 g

• Certifications: CE, RoHS

Applications

• Air-conditioning system installation and commissioning

• Refrigeration system maintenance

• Heat-pump system diagnostics

• HVAC/R pressure measurement

• Refrigerant charging and system evaluation

• Pressure holding and leak-testing procedures

• Evacuation monitoring

• Superheat and subcooling analysis

• Preventive HVAC/R maintenance

• Refrigeration system troubleshooting

• Chiller and cooling-system service

• Field diagnostics and measurement data logging