TOP TIER MANUFACTURES
REDZ
TESPRO
German Metering
Blusky
Intelli Probe
INACTIVE MANUFACTURES
ABACUS ELECTRICS
Founded in 1977, starting to make metering optical probe in 1993, ABACUS is probably the first independent optical probe manufacture. ABACUS was founded in UK, but it seems acquired by TransData, a American company in recent years. Today, ABACUS offers USB and RS232 Connector Optical Probes only.
SANDS
SANDS offers only one bluetooth optical probe.
TESCO
TESCO sells a wide viriaty of products. But in optical probes, TESCO offer only one USB optical probe.
VISION METERING
Similar to TESCO, VISION METERING sells a lot of products. Optical Probes looks like placed in the corner of its warehouse. As a American company, VISION METERING sells ANSI C12.18 standard optical probes only.