The Apogee EE08-SS is a customized version of the EE08 probe made by Austrian manufacturer E + E Elektronik. After years of evaluation, the EE08-SS has emerged as our sensor of choice over more expensive probes for accuracy, stability, and durability. The Apogee EE08-SS features an improved right-angle, IP67 rated, stainless-steel M12 connector; heat-reflective white cabling; and a more durable, metal-grid dust filter. These features added by Apogee only slightly increase the price over the base model from E + E, but greatly improve the performance and reduce the maintenance of the probe, especially when used with a fan-aspirated radiation shield like the Apogee TS-100.
Input Voltage 7 to 30 V DC Current Draw Less than 1.3 mA Start-up Time 2 s Housing Polycarbonate, IP65 Filter Stainless steel wire mesh, 30 micron pore size Connector M12, IP67 Dimensions 83 mm length, 12 mm diameter Mass with 5 m Cable 270 g Operating Environment -40 to 80 C; 0 to 100 % relative humidity Cable M12 connector (IP67 rating) to interface to sensor housing; 5 m of four conductor, shielded, twisted-pair wire (10 m and 20 m cables also available); white TPR jacket (high water resistance, high UV stability, flexibility in cold conditions); pigtail Warranty 1 year against defects in materials and workmanship Temperature Sensor PT1000 (Class A) Temperature Measurement Range -40 to 80 C Temperature Output Signal Range 0 to 2.5 V DC Temperature Accuracy at 20 C ± 0.2 C Temperature Long-term Stability Less than 0.1 C per year Temperature Time Constant Less than 30 s Relative Humidity Sensor Capacitance Chip Relative Humidity Measurement Range 0 to 100 % Relative Humidity Output Signal Range 0 to 2.5 V DC Relative Humidity Accuracy at 20 C ± 2 % from 0 to 90 %; ± 3 % from 90 to 100 % Relative Humidity Temperature Response Less than -0.05 % per C Relative Humidity Long-term Stability Less than 1 % per year Relative Humidity Time Constant Less than 30 s