Maverick M RediChek Remote Single Probe Taste or doneness (rare, medium, medium well, well done) as appropriate for each meat, or choose your own target Set temperature up to 410 F (210 C), and in your choice of F or C. Transmitter features a display of actual internal food temperature, and a red LED indicating transmissions (which occur whenever temperature changes by  degree). The probes are stainless steel, with flexible braid stainless steel sheathed connecting wire, 40 overall length. Transmitter measures 3  x 2 3/8 x , weighs 2.8 oz., and includes 2 AA batteries. Signal is sent on 433.92 MhZ. Receiver measures 5 5/8 x 3 x 1 1/8, weighs 6.8 oz., and includes 2 AA batteries and Warranty: 90 days.