Evvos - Model HT-30 -Humidity and Temperature Probe - Modbus over RS-485

RHT is a multi-parameter, high-accuracy digital probe. It measures 2 primary environmental parameters  (relative humidity, air temperature) and calculates 5 additional parameters (dew point, absolute humidity, athmospheric pressure at sea level, specific enthlapy, and heat index). Due to its low power consumption, versatile electrical interfacing options, and wide-range power supply, the probe is compatible with a variety of battery operated dataloggers and industrial data acquisition systems. A stainless-steel enclosure in combination with weatherproof electronic circuitries, and durable cable, ensure proper long-term operation even in harsh outdoor and demanding industrial conditions. All primary parameters are sensed by physical sensors. The secondary parameters are calculated, based on values measured by the probe's physical sensors. Use with your weather station. For optimal results in outdoor applications it is recommended to install an RHT probe in a solar shield.

• Stainless steel enclosure and filter cap, engineered to protect sensing elements
• Internal electronics sealed in resin
• Heater used at very high humidity levels for removing condensated water drops on humidity sensor
• Heater control command set to easily control heating/cooling cycles
• Statistics control command set to manage continuously accumulating statistical data for all environmental parameters
• See level pressure configuration command set 
• User calibration command set to manage individual, multipoint calibration for each primary parameter
• Electrical interface – Modbus/RS-485
• Low-power consumption suitable for battery-powered applications
• Earthing – probe’s metal casing internally connected to GND

Primary Parameters

• Relative humidity
• Air temperature

Secondary Parameters

• Dew point
• Absolute humidity
• Specific enthalpy
• Heat Index

• Environmental monitoring
• Weather forecasting solutions
• Industrial data acquisition
• Precision agriculture/farming
• Home/office automation
• Internet of things
  

• Weight : 0.075 kg
• Dimensions : 18 x 155 mm
• Cable length :1,5 / 3 / 5 / 10 m.