Model Comparison

Hydreon has a Rain Gauge suitable for almost any application that requires a reliable and sensitive rain sensor. The physical dimensions for each model is the same:
Length: 4.8″ (121 mm) Width: 2.8″ (71 mm) Height: 2.2″ (56 mm) Weight: 4.3 oz (122 g)
Including the moisture proof connector: Height: 3.0″ (76 mm) Weight: 4.5 oz (128 g)
RG-11 RG-15 RG-9
High Accuracy Tipping Bucket
Wiper Control
Drop Detection
Condensation Sensing
Irrigation Control
Rain Water Harvest
“It’s Raining Mode”
Low Power
Unique Hardware Heater Limits frost
Supply Voltage 10 – 30VDC or 12 – 26VAC 5VDC – 35VDC 5VDC – 35VDC
Current Drain 1.5 mA Nominal 15 mA Raining 110 μA Nominal 4 mA Raining 110 μA Nominal 4 mA Raining
Primary Output NO, NC Relay NPN Open Collector NPN Open Collector
Tipping Bucket Accuracy ±36% 2/3 of the time ±10% in our controlled environment
Serial Communication RS232 Unsupported Transmitted Registers Unidirectional Command Based Bidirectional Command Based Bidirectional
Individual pricing $59 $99 $49
Buy RG-11 Buy RG-15 Buy RG-9