Just set the critical temperature range in your building by adjusting the high and low limit hands. When the temperature indicating hand contacts either hand, a contact is made sending an sign to the alarm.
The adjustable set hands extend through the bottom of the instrument housing, so you can use your fingertips to adjust the high and low limits....no tools needed.
Temperature Range: 20°F - 110°F
Available in two models:
• Normally Closed
• Normally Open