... Range:0.01Hz--100KHz(max 100KHz) Accuracy:0.01Hz. Digital 4/5/6 LED Frequency Meter (FA) Features:1, Input: various wave form ... manufacture thousands of different models of products, including Temperature Controller, Digital Adjustor,thermocouple (TC and RTD), Panel Meter, Sensor Meter, ... -23609692 Phone: 086-13217608016(Barbara Guo) 086-13435730867(Peter Liao) Digital 4/5/6 LED Frequency Meter (FA)