Programmable alarm - The main module has two independent alarms temperatureAudible and visual alarms when the temperature exceeds the user defined minimum and maximum temperaturesIf block temperature rises or falls below a predetermined range within 15 minutes, an alarm will soundThis delay is to preventfalse alarm, because the door was open li>
Wireless Range Signal -Range up to 100 ', if there is a clear path between the blocks and the sensor li>
Temperature Range: :From -40 ° to 37 ° C (from -40 ° to 100 ° F), a resolution of 1 ° F / Cwas maintained within ± 1 ° C / ± 2 ° F li>
RF < / strong> :433MKH li>
Power B> - Display - 2 AAA batteries Sensors - 2 AA batteries (batteries are not included) Lithium batteries recommended at temperatures below -4 ° F ( -20 ° C), li>