The P-series temperature indicators provide temperature monitoring for incinerators, ovens, furnaces, and pollution-control equipment. These factory-calibrated units require no power supply or batteries and are sealed water-resistant up to NEMA 4. The indicator is comprised of two basic components, the sensing probe and the display meter. The probe is nickel alloy (Inconel) tube encased in a Type K 16-gauge thermocouple. The display is a rugged jeweled pivot millivoltmeter with dual analog scales of 0-2000¯F (0 - 1100¯C), encased in precision cast aluminum housing.