WSX53 replaces the WSX43. It detects all forms of precipitation (rain, snow, hail, sleet). It is able to discriminate between rain and snow. It has two volt-free change-over contacts which are activated in response to precipitation and snow-point temperature respectively. A post event delay can be applied to delay contact deactivation by 15, 30 or 45 minutes. Requires 6V AC or DC. Available also in 12V, 24V or 48V.