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About product and suppliers:
        Alibaba.com offers 409 frequency calibrator products. About 35% of these are testing equipment, 4% are other measuring & analysing instruments, and 2% are temperature instruments. 

A wide variety of frequency calibrator options are available to you, such as vibration testing machine, process testing machine, and auto testing machine. You can also choose from frequency, temperature transmitter. As well as from free samples. 

There are 409 frequency calibrator suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of frequency calibrator respectively. 

Frequency calibrator products are most popular in Domestic Market, South Asia, and Southern Europe. 

You can ensure product safety by selecting from certified suppliers, including 145 with ISO9001, 28 with Other, and 3 with OHSAS18001 certification.