Back Ground #

The original HRC 990 was originally launched as the HRC 900 with a screw top lid in 2008.

By 2009 a number of improvements were identified and the HRC 900 was re-introduced as the HRC 990. A major improvement was the introduction of the flip top lid with a heavy duty O-ring to prevent water ingress.

Manuals for the HRC 900 #

HRC 900 User Manual

HRC 900 Manual

HRC 900 Rain Sensor Manual

Rain Sensor Manual

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