... water monito, foam monitor, hydrant monitor, water monitor, monitor with remote control 1. Standard Hydrant Monitor PS SeriesTechnical Data and Cost: Water ... ±70°±70°±70°Expansion rate (foam)≥6≥6≥63. Electric Hydrant Monitor (including electric cabinet / controlling panel)Technical Data and Cost: Water ... water monitor, foam monitor, hydrant monitor, water monitor, monitor with remote control