Phone: 253-927-6186

HD2013.2 Rain detector equipped with mounting bracket. 8 pole connector output according to IEC 60130-9 IP68. The rain detector can be used either as a separate device, or connected to a data logger system (for example: in a weather station).
The HD2013.2 is a rain detector based on the capacity principle. The capacity value of the sensitive element, on an alumina rest, changes according to the surface dampened by raindrops.
An integrated heater keeps it dry, evaporates water and prevents false signals caused by fog or dew.
The heater also activates at low temperatures, melting the snow and allowing to detect snow precipitations.

HD2013.2 Rain detector

Model  Description 
HD2013.2  Rain detector with mounting bracket.

The instrument is equipped with three different outputs: a “Rain ON/OFF” output, which detects whether it is raining/snowing (ON) or not (OFF), also used to control a relay coil or similar devices; a 0…1V voltage analogue output (calibrated) and a 1,5…6KHz frequency output (not calibrated), which provide an accurate indication of current precipitation intensity.
The ON/OFF output comes with a delay circuit that indicates the “rain over” condition with a 2 minute delay, so that the “rain over” condition is distinguished from the “light rain” one.
The heater can be disabled when power consumption is critical. To do it, set the Heater OFF input on 0V.
If requested when ordering, a bird spike, consisting of a 6-spike ring (spike height: 60mm, diameter: 3 mm), can be mounted.

Rain detector specification
Measurement of conductivity by Instrument
Measurement range (K cell=0.1)
Resolution 0.00 - 19.99μS7cm / 0.01μS/cm (with K cell=0.1)
0.0 - 199.9μS/cm / 0.1μS/cm
200 - 1999μS/cm / 1μS/cm
2.00 - 19.99mS/cm / 0.01mS/cm
20.0 - 199.9mS /cm / 0.1mS/cm
Accuracy (conductivity) ±0.5% ±1digit
Measurement of resistivity by Instrument 
Measurement range / Resolution   4.0 - 199.9Ω / 0.1Ω
200 - 999Ω / 1Ω
1.00k - 19.99kΩ / 0.01kΩ
20.0k - 99.9kΩ / 0.1kΩ
100k - 999kΩ / 1kΩ
1 - 10MΩ / 1MΩ 
Accuracy (resistivity)  ±0.5% ±1digit 
Measurement of total dissolved solids (with coefficient χ/TDS=0.5) 
Measurement range (K cell=1)   0.00 - 19.99mg/l / 0.05mg/l 
Resolution   0.0 - 199.9 mg/l / 0.5 mg/l (with K cell=0.1)
200 - 1999 mg/l / 1 mg/l
2.00 - 19.99 g/l / 0.01 g/l
20.0 - 199.9 g/l / 0.1 g/l 
Accuracy (total dissolved solids)   ±0.5% ±1digit 
Measurement of salinity 
Measurement range / Resolution  0.000 - 1.999g/l / 1mg/l
2.00 - 19.99g/l / 10mg/l 
Accuracy (total dissolved solids)   ±0.5% ±1digit 
Measurement of temperature by Instrument 
Pt100 measurement range  -50 - +200°C 
Pt1000 measurement range   -50 - +200°C 
Resolution  0.1°C 
Accuracy   ±0.25°C 
Drift after 1 year   0.1°C/year 
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Hotek Technologies, Inc
tel: 253-927-6186