| HMC03M | Heated Humidity Sensor for Radiosondes |
| HMC03M is optimized for short response time even at very low temperature in the upper atmosphere. It combines on a silicon substrate a capacitive relative humidity sensor and a heating resistor (heater). | |
| Detail | The heater is dedicated for fast recovery of the humidity sensor after condensation or icing. This leads to outstanding measuring performance in high-end weather observation. |
| Key Features HMC03M | Very short response time even at low temperature |
| Fast recovery after condensation or icing due to sensor heating | |
| High sensitivity and outstanding linearity | |
| Technical data HMC03M | |
| NOMINAL CAPACITANCE C0 (AT 30 °C / 86 °F) | 120 ± 40 pF |
| SENSITIVITY (FOR C0 = 120 PF, IN AVERAGE) | 0.41 pF / % RH |
| RESPONSE TIME T63 (SEE GRAPH FOR DETAILS) | < 8 sec. at -30 °C (-22 °F) |
| < 11 sec. at -40 °C (-40 °F) | |
| WORKING RANGE TEMPERATURE | -80…60 °C (-112…140 °F) |
| WORKING RANGE HUMIDITY | 0…100 % RH |
| LINEARITY (0…98% RH) | < ± 2 % RH |