UNI-T UT336V Wireless Vacuum Gauge
The UNI-T UT336V is a compact digital vacuum gauge with integrated Bluetooth connectivity, designed for accurate vacuum monitoring in refrigeration and heat pump applications. It helps technicians assess system dehydration and cleanliness during installation, commissioning, troubleshooting, and routine maintenance. Its multiple vacuum measurement units and ambient temperature measurement make it a versatile tool for professional HVAC/R work.
The UT336V supports mobile app connectivity, stores up to 8,000 data records, and provides water saturation temperature and temperature-difference readings. It features an IP54-rated enclosure, a hanging hook, and a 1/4-inch SAE interface for convenient field use. The manufacturer lists compatibility with A1, A2L, A2, A3, and some B1 refrigerants; it must not be used with ammonia refrigerants (NH₃/R717).
Features:
- Wireless Bluetooth connectivity with mobile app support.
- Digital vacuum measurement.
- Ambient temperature measurement.
- Water saturation temperature display.
- Temperature-difference calculation.
- Internal storage for measurement records.
- IP54-rated enclosure.
- Hanging hook for convenient placement.
- Multiple vacuum and temperature units.
- Over-the-air firmware upgrade support.
Specifications:
| Specification | |
| Interface | 1/4” SAE |
| Vacuum Unit | microns, mBar, Pa, kPa, hPa, mTorr, Torr, mmHg, inHg, inH2o, psia, |
| Temperature Unit | ℃, ℉ |
| Vacuum Range | 1-19000 micron |
| Ambient Temperature Range | -20 ~ 60℃ |
| Overload Pressure | 27.5 Bar |
| Resolution | 1 -400 micron 1 micron |
| 400 – 3000 micron 10 micron | |
| 3000 – 10000 micron 100 micron | |
| 10000 – 19000 micron 250 micron | |
| Ambient temperature: 0.1°C | |
| Accuracy | 1 – 10000 micron ±10%rdg+10 micron |
| 10000 – 19000 micron ±20% | |
| Ambient temperature: ±0.5°C | |
| Unit Memory | ✔ |
| Auto Power Off | ✔ |
| Battery State | ✔ |
| Mobile APP | ✔ |
| OTA Upgrade | ✔ |
| Water Saturation Temperature | ✔ |
| ΔT(TH₂O-Tamb) | ✔ |
| Data Storage | 8000 |
| Battery Type | AA 1.5V * 3 |
| Working Environment | -10～50℃, ＜90%RH(non-condensing ) |
| Storage Environment | -20～60℃, ＜80%RH(non-condensing ) |
| General Characteristics | |
| Battery | AA 1.5V * 3 |
| Battery Life | About 100h(Backlight OFF) |
| Size | 145×68×39mm |
| Weight | About 245g(Battery not included) |
| Accessories | Wireless Vacuum Gauge*1, User Manual*1, Safety Guide*1, General Download Operation Guide*1, AA Battery*3, Hanging Hook*1, Cloth Bag (Hard) *1 |
| Standard Quantity Per Carton | 5pcs |
Applications:
- Refrigeration system evacuation.
- Heat pump installation and servicing.
- HVAC/R commissioning and maintenance.
- Monitoring vacuum levels during system dehydration.
- Checking evacuation quality before refrigerant charging.
- Refrigeration equipment troubleshooting.
- Recording vacuum measurements during service work.
Package Includes:
- 1 × UNI-T UT336V Wireless Vacuum Gauge.
- 1 × User Manual.
- 1 × General Download Operation Guide.
- 1 × Hanging Hook.
- 1 × Hard Cloth Bag.
