Great and convenient measuring tool. For use at home in the kitchen and outside for the food or BBQ. Feature - Color: As shown. - Material: Silicone. - Size: About 12.5 x 7.5 x 3.4cm. - Temperature detection range: -20 c -300 c (-4~572 F). - Wireless transmission distance: 100m. - Signal transmission way: 433.92 MHZ. - Power supply: the host 2 x AAA batteries; son machine 2 x AAA batteries (battery not included). - Temperature alarm, there are two different backlights. Normal is blue backlight and alarm is orange backlight. - Silicone protective case is practical and durable. - Timing function: timing and countdown, maximum setting time 9H59M59S. - There's a bracket and magnets on the back, can be adsorbed on the wall or stand on the table. - Four probes at the same time, detection of four different kinds of food.