Humidity Monitoring Device

The Humid•Alert® HA-1 is a wall console-type humidity monitoring device with easy to use setting dial. Applications include computer rooms, energy management systems, office areas, museums, document storage areas and greenhouses. With nylon banded sending element, this unit monitors a range of 20% to 80% RH. It requires no power to operate and can activate alarm systems, controls, and digital communication equipment through the SPDT output switch.

Product Specifications

Power Requirement No power required for operation
Sensing Range 20 – 80% R.H. ± 10% R.H.
Response Time
TC = 12 min
1A @ 24VAC/VDC, resistive
Operating Temp 60 to 90°F (15 to 32 C)
Dimensions 5 x 3.18 x 2.43” (12.7 x 8.1 x 6.2 cm)

                                                                                                      HA-1 Spec Sheet          HA-1 Manual