UNI-T UT336V Wireless Digital Vacuum Gauge

The UNI-T UT336V Wireless Vacuum Gauge is a professional digital measuring instrument designed to monitor vacuum levels in refrigeration, air conditioning, and heat pump systems. It helps HVAC technicians verify evacuation progress and assess whether moisture and non-condensable gases have been adequately removed before charging a system with refrigerant.

Equipped with a high-precision vacuum sensor and Bluetooth connectivity, the UT336V can transmit measurement data to a compatible smartphone through the UNI-T iENV mobile application. Its broad measurement range and selectable vacuum units make it suitable for different service and maintenance procedures.

The instrument also measures ambient temperature, displays water saturation temperature, and calculates the temperature difference between water saturation and ambient conditions. With an IP54 protection rating, a built-in hook, and storage for up to 8,000 records, the UT336V supports organized field measurements and HVAC maintenance documentation.

Features:

• High-Precision Vacuum Measurement: Measures vacuum levels from 1 to 19,000 microns.

• Wireless Bluetooth Connectivity: Connects to the compatible iENV mobile application for remote monitoring.

• Multiple Vacuum Units: Supports microns, mbar, Pa, kPa, hPa, mTorr, Torr, mmHg, inHg, inH₂O, and psia.

• Ambient Temperature Measurement: Measures surrounding temperature in Celsius or Fahrenheit.

• Water Saturation Temperature: Displays the calculated saturation temperature of water.

• Large Data Storage: Stores up to 8,000 measurement records.

• IP54 Protection: Provides protection against limited dust ingress and water splashes.

• Automatic Power-Off: Helps conserve battery power when the device is not in use.

• Hook Design: Allows convenient positioning during service work.

• Firmware Updates: Supports over-the-air (OTA) updates through compatible software.

Specifications:

• Brand: UNI-T

• Model: UT336V

• Product Type: Wireless Digital Vacuum Gauge

• Vacuum Measurement Range: 1–19,000 microns

• Measurement Interface: 1/4-inch SAE

• Resolution:

  • 1–400 microns: 1 micron

  • 400–3,000 microns: 10 microns

  • 3,000–10,000 microns: 100 microns

  • 10,000–19,000 microns: 250 microns

• Accuracy:

  • 1–10,000 microns: ±(10% of reading + 10 microns)

  • 10,000–19,000 microns: ±20%

• Ambient Temperature Range: -20°C to 60°C, specified measurement range

• Ambient Temperature Accuracy: ±0.5°C

• Overload Pressure: 27.5 bar

• Wireless Communication: Bluetooth

• Mobile Application: UNI-T iENV

• Data Storage: 8,000 records

• Protection Rating: IP54

• Power Supply: 3 × 1.5V AA batteries

• Battery Life: Approximately 100 hours with the backlight off

• Dimensions: 145 × 68 × 39 mm

• Weight: Approximately 245 g without batteries

• Compatible Refrigerants: A1, A2L, A2, A3, and certain B1 refrigerants, as specified by the manufacturer. Not suitable for ammonia (NH₃/R717).

Applications:

• Residential and commercial air conditioning installation.

• Refrigeration system servicing and maintenance.

• Heat pump installation and commissioning.

• HVAC system evacuation and dehydration.

• Industrial refrigeration maintenance.

• Automotive air conditioning service.

• Monitoring vacuum levels during system evacuation.

• Recording and documenting vacuum measurements.