Furnace Temperature Tester; High-Temperature Thermocouple Temperature Detector TM-902C Product FeaturesCompatible with any standard K-type (NiCr-NiAl) sensor Standard socket for K-type probe LCD screen for clear reading even in bright environments Low power consumption LCD Large-scale integrated circuit for high reliability & durability Sensor TypeK-type thermocouple (NiCr-NiAl) Resolution0.1℃ Measuring Range-50℃ ~1300℃; -50℉ ~1999℉ (This is meter display range. Actual temperature range depends on probe.) Meter Accuracy0℃~500℃: ±(0.75%+1℃) 500℃~1300℃: ±(1%+1℃) Display0.1", 3½ digits LCD Open Sensor CircuitShows ambient temperature Power Supply2×AAA batteries Battery LifePower consumption 14mW, continuous working for 100 hours Low Battery Indicator"LOBAT" displayed on screen when battery replacement needed Response SpeedFast temperature measurement, 1 second response Dimension20×70×105mm Weight120g (including batteries) Impedance10MΩ