[{"data":1,"prerenderedAt":408},["ShallowReactive",2],{"doc-\u002Fabout\u002Froi":3},{"id":4,"title":5,"body":6,"description":398,"edit":399,"extension":400,"meta":401,"navigation":402,"path":403,"seo":404,"stem":405,"vertical":399,"weight":406,"__hash__":407},"content\u002Fabout\u002Froi.md","ROI — per vertical",{"type":7,"value":8,"toc":372},"minimark",[9,13,29,34,39,73,90,94,102,106,110,136,149,152,160,164,168,196,209,213,217,240,248,255,259,263,280,293,297,301,336,349,353],[10,11,12],"p",{},"This page is the back-of-envelope ROI calculation for each vertical, at\nSolo tier pricing (€29 \u002F month \u002F site = €348 \u002F year, plus one-time\nhardware ~€100–€300 for the first three sensors).",[10,14,15,16,20,21,24,25,28],{},"The numbers are intentionally ",[17,18,19],"strong",{},"conservative",": we use the ",[17,22,23],{},"lower"," end\nof each saving and the ",[17,26,27],{},"upper"," end of each cost. If our defaults work\nout for you, your real ROI is better than what is below.",[30,31,33],"h2",{"id":32},"haccp-cold-chain","HACCP \u002F cold chain",[35,36,38],"h3",{"id":37},"quantified-savings-per-site-per-year","Quantified savings (per site, per year)",[40,41,42,53,63],"ul",{},[43,44,45,48,49,52],"li",{},[17,46,47],{},"Manual logbook time."," A staff member writes the fridge temperature\nin a paper log twice a day. 5 min per round × 2 rounds × 365 days\n= 60 hours \u002F year. At €12 \u002F hour (Slovak waitstaff rate including\nsocial) = ",[17,50,51],{},"€720 \u002F year",".",[43,54,55,58,59,62],{},[17,56,57],{},"One avoided spoilage event."," A failed fridge over a weekend means\n~€300–€1500 of discarded food at a small café. OpenSense catches it\n~6 hours after the failure starts. Assume ",[17,60,61],{},"€600 \u002F year"," averaged.",[43,64,65,68,69,72],{},[17,66,67],{},"Inspector compliance buffer."," A ŠVPS fine for missing or\ninconsistent logs is €332–€3320 in Slovakia (food law sanctions). One\navoided event over the product's first year: ",[17,70,71],{},"€332 \u002F year","\namortised.",[10,74,75,78,79,82,83,86,87,52],{},[17,76,77],{},"Total realised savings",": ~€1650 \u002F year, conservatively.\n",[17,80,81],{},"Cost",": €348 \u002F year + ~€100 sensors.\n",[17,84,85],{},"Payback",": ",[17,88,89],{},"3.3 months",[35,91,93],{"id":92},"where-it-does-not-pay-back","Where it does not pay back",[40,95,96,99],{},[43,97,98],{},"If the operator was already running OpenSense's competitor with the\nsame logbook-time savings. (Marginal savings: hardware-agnosticism +\ndata export, not the logging itself.)",[43,100,101],{},"If the operator has fewer than 1 fridge and no auditor visit (rare).",[30,103,105],{"id":104},"legionella","Legionella",[35,107,109],{"id":108},"quantified-savings-per-building-per-year","Quantified savings (per building, per year)",[40,111,112,120,126],{},[43,113,114,117,118,52],{},[17,115,116],{},"Reduced sample frequency."," A building demonstrating 50\u002F60\u002F50\ncontinuously can move from monthly lab swabs to annual. Swab cost\n~€60 each, × 12 saved per year = ",[17,119,51],{},[43,121,122,125],{},[17,123,124],{},"One avoided incident."," A Legionella outbreak in a small hotel\ncosts an order of magnitude more than the SaaS — but probability is\nlow. Insurance defends; OpenSense's continuous temperature log is the\nevidence insurers and lawyers look for. We do not put a number on\nthis; it is real and we do not need to inflate it.",[43,127,128,131,132,135],{},[17,129,130],{},"Faster diagnosis when something breaks."," A failed recirc pump\nwith no monitoring takes weeks to notice; with monitoring, hours.\nPlumber call-out savings: ",[17,133,134],{},"€200 \u002F year"," amortised.",[10,137,138,140,141,143,144,86,146,52],{},[17,139,77],{},": ~€920 \u002F year minimum, much more if a\nnear-miss is prevented.\n",[17,142,81],{},": €348 \u002F year + ~€250 in probes and clamp-on PT100s.\n",[17,145,85],{},[17,147,148],{},"8 months",[35,150,93],{"id":151},"where-it-does-not-pay-back-1",[40,153,154,157],{},[43,155,156],{},"Single-occupant houses (Legionella risk is low; the regulation does\nnot apply).",[43,158,159],{},"Buildings already on a manual quarterly inspection regime they will\nnot relax (some risk-averse health authorities).",[30,161,163],{"id":162},"server-room","Server room",[35,165,167],{"id":166},"quantified-savings-per-server-room-per-year","Quantified savings (per server room, per year)",[40,169,170,179,188],{},[43,171,172,175,176,135],{},[17,173,174],{},"One avoided AC failure during business hours."," Detected within\n10 min instead of 4 hours when an employee notices. Avoided hardware\ndamage (one cooked switch): ",[17,177,178],{},"€800 \u002F year",[43,180,181,184,185,52],{},[17,182,183],{},"Insurance premium reduction."," Some EU SMB property insurers give\n3–5 % discount with environmental-monitoring evidence. On a €4000\npremium that is ",[17,186,187],{},"€120–€200 \u002F year",[43,189,190,193,194,52],{},[17,191,192],{},"Audit time saved."," MSP customer-audit pack now includes the\nuptime PDF, removing one half-day of spreadsheet construction per\ncustomer per year. At 3 customers × €200 \u002F half-day saved:\n",[17,195,61],{},[10,197,198,200,201,203,204,86,206,52],{},[17,199,77],{},": ~€1500 \u002F year for the MSP, ~€800 \u002F year for\nsingle-rack SMB.\n",[17,202,81],{},": €348 \u002F year + ~€60 (Shelly H&T pair + flood sensor).\n",[17,205,85],{},[17,207,208],{},"3 months",[30,210,212],{"id":211},"indoor-climate-schools","Indoor climate — schools",[35,214,216],{"id":215},"quantified-savings-per-school-building-per-year","Quantified savings (per school building, per year)",[40,218,219,228,234],{},[43,220,221,224,225,52],{},[17,222,223],{},"CO₂ as a ventilation tracer."," When monitored, classrooms hit\n\u003C1000 ppm reliably; absenteeism drops measurably (1–3 % across\nmeta-analyses). For a school of 200 pupils at ~€8 \u002F day cost-per-\nabsent-day on the public budget, 1 % absenteeism reduction is\n",[17,226,227],{},"€2920 \u002F year",[43,229,230,233],{},[17,231,232],{},"Avoided \"we don't ventilate because it's cold\" arguments."," When\nCO₂ is visible on a wall display, behaviour shifts on its own.",[43,235,236,239],{},[17,237,238],{},"Quality argument for parents."," Soft savings; we do not count.",[10,241,242,244,245,247],{},[17,243,77],{},": school value is genuinely high but\nsoft-quantified; ROI is policy-driven, not direct.\n",[17,246,81],{},": €348 \u002F year + ~€150 per classroom for a Sensirion SCD41 + ESP32.",[10,249,250,251,254],{},"We treat schools as a ",[17,252,253],{},"mission-aligned vertical",": it is cheap, the\neducation ministry budget can absorb it, and the actual public-health\ncase is strong.",[30,256,258],{"id":257},"indoor-climate-museums","Indoor climate — museums",[35,260,262],{"id":261},"quantified-savings-per-gallery-per-year","Quantified savings (per gallery, per year)",[40,264,265,274],{},[43,266,267,270,271,135],{},[17,268,269],{},"One avoided conservation event."," An RH drift past 60 % over a\nweekend can mean a €2000 conservator bill for a single panel\npainting. Averaged: ",[17,272,273],{},"€1000 \u002F year",[43,275,276,279],{},[17,277,278],{},"Insurance premium \u002F loan compliance."," Bizot-compliant museums\nroutinely have RH monitoring as a condition; OpenSense satisfies it\nfor ~10 × less than the bespoke museum-environmental product market.",[10,281,282,284,285,287,288,86,290,52],{},[17,283,77],{},": ~€1000–€2000 \u002F year.\n",[17,286,81],{},": €348 \u002F year + ~€150 per gallery for two RH probes.\n",[17,289,85],{},[17,291,292],{},"3–6 months",[30,294,296],{"id":295},"energy","Energy",[35,298,300],{"id":299},"quantified-savings-per-small-workshop-per-year","Quantified savings (per small workshop, per year)",[40,302,303,319,328],{},[43,304,305,308,309,314,315,318],{},[17,306,307],{},"One leak found."," Per the ",[310,311,313],"a",{"href":312},"\u002Fverticals\u002Fenergy","energy vertical",":\ntwo failed dishwasher solenoids and one chronically-on fountain in\nour pilot. Each ≈ ",[17,316,317],{},"€300–€800 \u002F year"," of avoided electricity \u002F gas.",[43,320,321,324,325,62],{},[17,322,323],{},"Standing load anomalies."," Catching a freezer with a failed gasket\nin the first week instead of after the next bill saves ",[17,326,327],{},"€100–€400 \u002F\nyear",[43,329,330,333,334,52],{},[17,331,332],{},"Phase imbalance."," A laundry on three-phase with a heater wired\nimbalanced was paying ~€600 \u002F year more than necessary in transformer\nlosses and breaker derating; OpenSense flagged it; an electrician fixed\nit. Amortised: ",[17,335,134],{},[10,337,338,340,341,343,344,86,346,52],{},[17,339,77],{},": ~€800 \u002F year typical, €1500 \u002F year if a\nleak gets caught.\n",[17,342,81],{},": €348 \u002F year + ~€140 for a Shelly Pro 3EM.\n",[17,345,85],{},[17,347,348],{},"6–8 months",[30,350,352],{"id":351},"caveats","Caveats",[40,354,355,362,369],{},[43,356,357,358,361],{},"Every number on this page is averaged across hypothetical small\noperators. ",[17,359,360],{},"Your operation is not the average."," If you have one\nfridge in your café and an inspector visits once a year, your HACCP\nROI is closer to \"the saved logbook hours\" than to \"the avoided\nfine\". If you run a 40-room hotel, the Legionella ROI is dominated by\nthe avoided incident.",[43,363,364,365,368],{},"We do not promise the savings — we promise the ",[17,366,367],{},"measurement",". The\nsavings come from acting on the measurement; you have to do that\nacting.",[43,370,371],{},"Where we cannot quantify (school air quality, museum conservation),\nwe say so rather than fabricating. The conservative numbers in the\nHACCP and server-room sections are deliberately on the low end.",{"title":373,"searchDepth":374,"depth":374,"links":375},"",3,[376,381,385,388,391,394,397],{"id":32,"depth":377,"text":33,"children":378},2,[379,380],{"id":37,"depth":374,"text":38},{"id":92,"depth":374,"text":93},{"id":104,"depth":377,"text":105,"children":382},[383,384],{"id":108,"depth":374,"text":109},{"id":151,"depth":374,"text":93},{"id":162,"depth":377,"text":163,"children":386},[387],{"id":166,"depth":374,"text":167},{"id":211,"depth":377,"text":212,"children":389},[390],{"id":215,"depth":374,"text":216},{"id":257,"depth":377,"text":258,"children":392},[393],{"id":261,"depth":374,"text":262},{"id":295,"depth":377,"text":296,"children":395},[396],{"id":299,"depth":374,"text":300},{"id":351,"depth":377,"text":352},"When OpenSense pays for itself",null,"md",{},true,"\u002Fabout\u002Froi",{"title":5,"description":398},"about\u002Froi",945,"1OQpyaQgjS0GTRlSvTD0ystwT5wJH-CUqk6vLpLdZS8",1779022956339]