HAKKO FG-100 tip temperature thermometer The HAKKO FG-100 tip temperature thermometer uses a thermocouple sensor to measure tip temperatures. The easy-to-read digital temperature display shows the temperature values immediately. The HAKKO FG-100B thermometer offers fast, accurate peak temperature measurements with a fine CA wire sensor (dia. 0.2). The thermometer measures both peak and solder pot temperatures (with optional temperature probe). The AS5000 long-life sensor is supplied as standard and allows accurate measurement of soldering tips for verification or calibration processes. The device has a meter that can be useful for monitoring sensor change, and the sensor can be replaced quickly and easily. Compared to conventional sensors, where the measurement accuracy deteriorates after 50 measurements, this only occurs with the AS5000 after 1500 measurements. The AS5000 sensor has a special metal alloy coating that is resistant to corrosion and oxidation.