Rotronic, as a temperature and humidity measurement expert in Switzerland, is renowned for its products' high precision, stability, and excellent quality. Selection is a systematic process that requires comprehensive consideration of multiple factors. The following outlines the selection steps and key considerations for Lozonic sensors, and provides some guidance on typical product series.
　　1. Measurement parameters:
Just need temperature and humidity? (This is the core of Rozhnik)
Do you need additional parameters? For example: CO ₂, pressure difference, wind speed, water activity (aw), etc. Rozhnik has many composite probes.
　　2. Application scenarios and environments:
Indoor environmental monitoring (such as computer rooms, warehouses, laboratories, archives, museums, greenhouses)
Cleanroom/pharmaceutical industry (requiring GMP compliance and pressure differential monitoring)
HVAC and Building Automation
Industrial process control (such as drying process, production workshop)
Outdoor meteorological monitoring
Cold chain logistics and warehousing
Calibration and monitoring of ovens and climate test chambers
　　3. Accuracy and long-term stability requirements:
The Rozonik product line covers different accuracies from industrial grade to metrological grade. Do you need general monitoring or high-precision measurements for calibration, research and development, or regulatory compliance verification?
Long term stability (annual drift) is crucial for reducing calibration frequency.
　4. Installation and interface method:
Probe forms: wall mounted, pipe mounted, duct mounted, embedded, with display screen, without display screen?
Output signal/communication protocol:
1) Analog quantity: 0-1V, 0-10V, 4-20mA (commonly used, easy to connect to PLC/DCS)
2) Digital interfaces: RS485 (Modbus RTU), Ethernet (Modbus TCP), USB
3) Wireless: LoRaWAN, Wi Fi, Bluetooth (for flexible deployment)
Power supply: DC power (such as 24 VDC), POE, or battery power?
　　5. Environmental tolerance:
Temperature range: What is the maximum temperature limit of the environment that needs to be measured? (Different probes correspond to temperatures ranging from -100 ° C to over 200 ° C)
Humidity range: Is it necessary to measure high humidity (>95% RH) or extremely low humidity (<10% RH)?
Chemical resistance: Will it come into contact with corrosive gases, solvents, or particulate matter? (Probe with specific filter membrane or sintered filter needs to be selected)
Mechanical protection: Is an IP protection level (such as IP65 dust and water resistance) required?