Winland Wired Humidity Alert Sensor

The Winland HA4 Wired Humidity Alert Sensor monitors room humidity and can be used in cold environments. It works with specific Winland systems and has a wide operating temperature range.

• The description claims a humidity range of 5 to 95% RH at 77 °F (25 °C) with accuracy of ±3% from 25 to 75% RH at 77 °F (25 °C).
• The description claims an operating temperature range of –40 to +140 °F (-40 to +60 °C).