iOpt Cost Comparison Calculator iOpt Cost Comparison Calculator Quickly compare your current process with monitoring a portion of your stock using iOpt sensors £150 per monitored property per year Inputs Number of properties Whole number Cost per call‑out (£) Avg. call‑outs / property / year % of properties to monitor 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% iOpt annual cost per monitored property (£) Includes two sensors and management fee Reset to defaults Copy shareable link