The CV-H1-AV from Metcal is an advanced handpiece with integrated LED light. It signals to operator that a good solder joint has been formed. The CV-H1-AV takes the risk out of soldering success/failure out of the hands of operators. Standardizes the skill of the operator by providing repeatability to soldering process. This handpiece is suitable for use with CV-5210 soldering station and it is backwards compatible with Metcal MX series power supplies.