WD-4H Reflow Oven Profiler/Data Logger Specifications Model WD-4H, 4 channels Resolution 1°C Sample time 1S, 2S, 5S, 10S, 30S, 60S Record time 2 hours(1S sample) to 120 hours(60S sample) Range 0°C-500°C Sensor PT100 Accuracy ±1°C Recorded data Table or Graph Computer communication RS232

QK191C SMT Thermometer List Price: $235.00 Sale Price: $148.00 Specifications Model 191C (both C and F) Resolution 1°C Range 0°C-600°C Sensor K thermocouple Accuracy ±3°C Indications 3.5-digit b/w liquid crystal display Battery low warning Sensor damage Power Supply 9V battery Battery Life More than 150 hours Dimension 160x45x80(mm) Weight 200g