Heated humidity sensor for weather observations
Dedicated for use in radiosondes and weather balloons, E+E Elektronik has released the HMC03M humidity sensor. The sensor is characterised by a short response time even at low temperature. An integrated heating resistor ensures measuring performance under condensation and icing conditions. This makes the sensor suitable for weather observations in the upper atmosphere. The HMC03M combines on a silicon substrate a capacitive relative humidity (RH) sensor and a heating resistor.
By heating, the sensor quickly recovers after condensation or icing, which leads to a good measuring performance even under extreme weather conditions. Another key feature of the HMC03M is the short response time at low temperature. As a result, the HMC03M is suitable for use in radiosondes to measure humidity in the upper atmosphere.
The 5.85x2.85mm SMD sensor is appropriate for automatic assembling with subsequent reflow soldering. HMC03M is available on tape and reel of 500, 1,000 or 2,500pcs.
E+E Elektronik’s product range for meteorology also includes probes and transmitters for highly accurate humidity and temperature measurement. The sensing elements of these devices are well protected from pollution and corrosion by the proprietary E+E coating. This leads to improved long-term stability and a longer lifetime, two essential criteria for long-term use in weather stations.
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