The ThermaStick Pocket Thermometer is a handy, pocket-sized, waterproof IP66 thermometer that incorporates a Dia 2.5 x 115 mm stainless steel penetration probe with a reduced fast response Dia 1.6 mm tip. An ideal economical solution for numerous temperature measurement applications. The ThermaStick thermometer measures temperature over the range of -49.9 to 299.9deg C with a resolution of 0.1deg C/ deg F and features two easy to use push buttons, on/off and max/min. The ThermaStick is powered by a single lithium coin cell battery that gives a minimum of 5000 hours use. The unit will power off automatically after ten minutes, maximising battery life.