Temperature HiTester WaterProof Product Description DESCRIPTION The 3441 and 3442 temperature meters provide high-resolution measurements across a wide range of temperatures using K type thermocouples. With its drip-proof design, the 3442 delivers extended versatility, allowing use in moisture-prone environments when used with a special-purpose temperature probe. KEY FEATURES ?? Model 3442 : Waterproof construction?? -100 to 199.9 ???C: 0.1 ???C resolution, 200 ???C to 1300 ???C: 1 ???C resolution?? More than 200 hours (1 week) of continuous operation on a single battery?? Max./Min. value recording function and sensor disconnection check function ? ? ?