Programmable Alarm - The main module has two independent temperature alarms. Audible and visual alarms when temperatures exceed user defined minimum and maximum temperatures. If temperature in the unit rises or falls below the defined range for 15 minutes, the alarm will sound. This delay is to prevent false alarms because a door was opened.
Wireless Range Signal - The operating range is up to 100' if there is a clear path between the units and the sensor.
Temperature Range: From -22 F to 104 F (-30 C to +40 C), resolution 1 F/C
Radio Frequency: 433MKH
Power - Display - 2 AAA batteries Sensors - 2 AA batteries (batteries are not included) Lithium batteries recommended for temperatures below -4 F (-20 C)
