Value Bluetooth Psychrometer

Value Digital Psychrometer with Bluetooth

The Value Digital Psychrometer with Bluetooth is a wireless Bluetooth psychrometer featuring a digital display designed to measure humidity and temperature parameters in HVAC/R systems and climate installations. The device simultaneously maps all relevant psychrometric properties: dry bulb, wet bulb, dew point, relative humidity, absolute humidity, and enthalpy. The switchable knob allows the probe to be used on both the supply and return sides of an installation, and thanks to F2L compatibility, the VSH1 is also suitable for use with A2L refrigerants.

Benefits and Features

• Six simultaneous psychrometric measurement parameters: dry bulb, wet bulb, dew point, relative humidity, absolute humidity, and enthalpy, all visible on a single display.
• Capacitive polymer film humidity sensor: accurate across the full range of 0 to 100% RH, with rapid response to changing airflow conditions.
• Precision thermistor for temperature: accuracy up to ±0.5°C within the 0 to 60°C range, and ±0.8°C from 60 to 120°C.
• Flexible probe (200 mm): easily positioned in narrow air ducts, grilles, and measurement points without obstructing airflow.
• Switchable knob for SP/RT (rotatable 90°): immediate setting for supply (Supply) or return (Return) without needing accessory changes.
• Bluetooth connection (50 m range) with Hi VALUE app: wireless data transfer for recording and further analysis.
• Rechargeable battery (1200 mAh, Type-C): over 150 hours of operation with screen off and more than 40 hours with screen on.

Complete Humidity Analysis in a Single Measurement

The VSH1 measures humidity with a resolution of 0.1% RH and an accuracy of ±2.0% RH between 10 to 90% RH, and ±5.0% outside that range. The 10-second response time ensures readings are quickly available, even under dynamic airflow conditions. The temperature measurement range extends from -20 to +125°C, enabling the probe to deliver reliable results in high-temperature applications as well.

Installation, Maintenance, and Applications

The flexible 200 mm probe (10 mm diameter) is installed in the air duct, outlet, or at a measurement location. The switchable knob sets the indication direction for supply (SP) or return (RT). The VSH1 is suitable for both indoor and outdoor use between -10 to +50°C and up to 75% RH, and may be operated at altitudes up to 5000 m. Charging is via USB Type-C. Weighing 175 g, the VSH1 is comfortable to carry during service tasks.

The Value VSH1 offers a complete set of psychrometric measurement parameters in a compact, wireless instrument enabling HVAC technicians to perform humidity analyses quickly and accurately.