Conductivity: 0 to 1999μS/cm /±1% FS 00 to 19.99mS/cm /±1% FS Temperature: 0 to 50°C Power: Four LR44 button batteries Dimensions: 6.5 x 1.4 x 1.3" (165 x 35 x 32mm) Weight: 3.8oz (110g) Includes meter, protective sensor cap, and four LR44 button batteries