High-Precision Thermo-Hygrometer Split-Type Extendable Probe – UNI-T UT333S

Precision Environmental Auditing with Reach

The UNI-T UT333S represents the evolution of the portable thermo-hygrometer, designed specifically to solve the visibility challenges of standard all-in-one meters. In the South African HVAC and agricultural sectors—where monitoring airflow in cramped ceiling voids or deep within grain silos is common—the UT333S provides the necessary physical reach. By separating the high-sensitivity sensor from the main display unit via a durable coiled cable, the UT333S ensures that the operator never has to sacrifice safety or posture to get an accurate reading.

Split-Type Innovation and High-Speed Accuracy

The UT333S is built for speed and precision in complex thermal environments:

• Extendable Coiled Sensor Cable: The remote probe allows for deep penetration into air conditioning vents, server racks, and refrigeration units. This design prevents the operator’s body heat from affecting the ambient measurement, ensuring a more representative data sample.

• Advanced Digital Calibration: Using a high-stability sensing module, the UT333S delivers a temperature accuracy of ±1.0°C and humidity accuracy of ±5%RH, providing the laboratory-level confidence required for professional climate audits.

• Rapid 1-Second Sampling Rate: The high-speed internal processor updates the display every second, allowing for real-time tracking of rapid environmental changes during HVAC commissioning or industrial process monitoring.

Intelligent Monitoring and Visual Clarity

Safety and efficiency are enhanced through integrated smart features:

• MAX/MIN Data Tracking: Instantly identify the thermal and moisture extremes within a space. This is critical for auditing “hot spots” in data centers or verifying the peak humidity levels in humidity-sensitive pharmaceutical warehouses.

• High-Contrast Backlit LCD: The oversized digits and crystal-clear backlight ensure error-free data reading in dark service shafts or brightly lit outdoor agricultural sites.

• Dual-Unit Switching: Effortlessly toggle between Celsius and Fahrenheit, allowing for seamless compliance with international equipment specifications and diverse professional reporting standards.

Industrial Build and Field Reliability

The UT333S is housed in a ruggedized, impact-resistant chassis designed for high-intensity field use. The unit features an intelligent auto-power-off function and a low-battery indicator, ensuring it remains operational during long site inspections. With its lightweight form factor (under 300g) and tactile interface, it is optimized for one-handed operation, leaving the technician’s other hand free to manage the remote sensor or navigate service ladders.

Key Features & Technical Advantages:

• Split-Type Remote Sensor: Safe and easy measurement in ducts and confined spaces.

• Simultaneous Temp/Humidity Display: Full-spectrum atmospheric snapshot at a glance.

• 1-Second Sampling Rate: Rapid-response diagnostics for fluctuating environments.

• MAX/MIN/Hold Functions: Quick capture of environmental extremes and stability.

• Overload Indication (OL): Immediate visual warning when thresholds are breached.

• Backlit LCD Interface: High-visibility data in all lighting conditions.

Professional Application Scenarios

• HVAC/R System Auditing: Measuring air supply and return temperatures within ductwork for efficiency balancing.

• Agricultural & Grain Storage: Monitoring moisture levels and temperature in silos to prevent spoilage and fungal growth.

• Data Center Management: Identifying localized “hot spots” behind server racks to optimize cooling distribution.

• Laboratory Environmental Control: Verifying the stability of climate-controlled cleanrooms and incubators.

• Building Inspections: Detecting high-humidity areas prone to mold growth in residential and commercial properties.

Maintenance and Best Practices

To maintain the professional accuracy and longevity of your UNI-T UT333S, follow these protocols:

• Sensor Protection: The remote probe is a precision instrument; avoid touching the sensor mesh directly and keep it free of dust, oil, and metallic filings.

• Cable Integrity: Avoid over-stretching the coiled cable or allowing it to come into contact with moving parts or sharp edges during vent inspections.

• Battery Replacement: Use high-quality AAA batteries; replace immediately when the low-power indicator appears to ensure the backlit display and high-speed sampling remain stable.

• Environmental Storage: While rugged, storing the meter in a cool, dry place within its protective pouch will protect the high-resolution LCD and the sensitive hygrometer sensor from premature aging.