Description On/Off switch Automatic power off °C/°F preset Data hold Specifications Display digit size: 7 x 3mm Product size: 3.5 x 11mm Battery: 1.5V, size 393S or equivalent x 1 pc 7876 Temperature Range: -50° to +150°C/-58° to +302°F Pobe Size: 0.35 x 125mm 7877 Temperature Range: -50° to +280°C/-58° to +536°F Pobe Size: 0.35 x 200mm