Somebody’s there, even when nobody is

Your house isn’t empty. Sherlock’s on duty.

He sits on a shelf at the cabin and reports temperature, power and humidity all season — then texts you within minutes if any of it moves. He brings his own cellular connection, included. No Wi-Fi, no phone line, and no cell plan of your own.

Get Sherlock — $159 See how it works

Cell service included — no plan to buy No contracts, cancel anytime Works through power outages

All clear

The Lake House is 68°F & cozy

Endorsed by the NHWA Featured on Discovery Channel Verizon Partner Built by ex-OnStar engineers

The cell service is included. There is nothing for you to buy.

This is the question we get most, so here it is plainly: Sherlock has its own cellular connection built into the device. It is not a Wi-Fi gadget and it never joins a network at the house. It does not use your phone’s data, it is not a line on your phone bill, and there is no SIM card for you to buy or activate. The connection is part of the plan that starts at $5 a month — that is the whole bill.

No Wi-Fi. Most cabins don’t have it. Sherlock doesn’t want it.
No internet or phone line. Nothing to install at the house.
No cell plan of your own. No SIM, no extra line, no second bill.
Nothing to configure. Plug it in; it finds coverage by itself.

The night shift

Nobody was at the house. Something was.

It’s two in the afternoon on a Sunday in January, and the lake house has been locked up since October. Nobody has driven past it in six weeks.

Back at the lake house, the power quietly goes out. The furnace stops. Inside those empty walls, the temperature begins to slide toward freezing — the exact conditions that split a pipe and flood a home before spring.

Then your phone buzzes. Sherlock caught it. A text: "Power lost at The Lake House — indoor temp falling, now 44°F." You call the neighbour who keeps your spare key. He drives over, shuts the water off at the main, and opens the taps to drain the lines.

The pipe never burst. No ceiling collapse, no ruined floors, no five-figure insurance claim, no lost summer. Just a quiet Sunday that stayed quiet — because your home could reach you, even with no Wi-Fi for miles.

2:14 PM — Power lost

Sherlock's battery kicks in and stays on duty.

2:15 PM — Text & email sent

"Indoor temperature falling — now 44°F."

✓

2:41 PM — Crisis averted

A neighbor restores heat. The pipes hold.

With and without

The same winter, two different springs.

Nothing about an empty house changes when you add Sherlock. What changes is whether you hear about it in January or in April.

Without HouseSetter

The risks of a home left alone

A pipe freezes and bursts, flooding the house for days before anyone knows.
The power goes out, the heat dies, and the cold does the rest.
A storm rolls through and you have no idea whether the house held up.
You find out in the spring — from the smell, or from the adjuster.

With Sherlock on duty

What happens instead

The temperature starts to slide and you get a text while it still reads 44°F.
Sherlock’s battery keeps it on duty through the outage and reports the moment power drops.
You check on the house from wherever you actually are, in about ten seconds.
You find out the same day, while a phone call to a neighbour still fixes it.

What actually lands in your inbox

Every report, in one glance.

Most weeks nothing is wrong, and that is the point. Every week Sherlock sends a plain report of every reading, so “no news” is something you can actually see rather than something you hope.

Five green checks and you close the tab. If one of them turns, you don’t wait for the weekly report — the text reaches you within minutes.

The unit reports itself as On‑Duty. That is not marketing language — it is the status HouseSetter’s own system has always used.

HouseSetter — Weekly Report

Your HomeData Report

Account Status

✔ A/C PowerOn

✔ Temperature76°F

✔ Humidity48% RH

✔ BatteryCharged

✔ The Lake HouseOn‑Duty

Plan Selected

Sherlock Inspector (Annual)

Alert Settings

Temperature Alert: On

High: 80°F Low: 45°F

Humidity Alert: On

High: 75% RH Low: 0% RH

Everything Sherlock reports on

Small device. Serious protection.

One little sensor, quietly doing the worrying for you — designed and assembled in the USA.

Power status

Get notified the moment the electricity drops out — the earliest warning that heat, sump pumps, and freezers are at risk.

Temperature

Know the instant a furnace fails or a cabin dips toward freezing — before pipes ever have a chance to burst.

Humidity

Catch the damp, musty conditions that breed mold and warp hardwood while a home sits closed up for months.

Built-in camera

Take a look with your own eyes. Ask Sherlock for a snapshot whenever you like and see for yourself that all is well.

Customize your alerts

Set your own high and low thresholds for temperature and humidity, then get an email and a text within two minutes when something crosses the line.

Battery backup

A Lithium-Ion battery keeps Sherlock on duty for up to two days after the power goes out — long enough to hear about it and get someone to the house.

The Sherlock unit on a table in a lakeside cabin, with the lake
visible through the window behind it

Sherlock™ — small package, serious technology.

Ready in minutes

No installer. No router. No hassle.

Sherlock arrives ready to go. Because it has its own cellular connection built in, there's nothing to configure and no home network to depend on.

Plug in Sherlock

Set it on a shelf and plug it into any standard wall outlet. That's the whole installation.

It connects itself

An embedded cellular modem finds a signal automatically — no Wi-Fi, internet, or phone line needed.

Relax anywhere

Go live your life. If anything's off, an alert reaches your phone in under two minutes — wherever you are.

Check in anytime. Or don’t.

Ask Sherlock for a photo whenever you feel like it and see the room for yourself. Most people never need to — but on the night you wonder, it takes less than a minute.

Honest, simple pricing

One device. A tiny monthly plan.

Buy Sherlock once, then choose a monitoring plan starting at just $5 a month when purchased annually. No long-term contracts.

The device

$159 one-time

The Sherlock™ monitor — yours to keep. US-designed and assembled.

Built-in cellular modem
Lithium-Ion backup battery
Camera + temp/humidity/power sensors
Portable — plugs into any outlet

Get Sherlock

Elementary plan

$5 / month

when purchased annually

The essentials that prevent the big disasters.

Temperature, humidity & power alerts
Email & text alerts in under 2 min
Customizable alert thresholds
Weekly status email
No contract, cancel anytime

Choose Elementary

Your house has someone on duty now.

Join the second-home owners, snowbirds, and cabin keepers who finally stopped worrying about the place they left behind. Set up Sherlock in minutes — no Wi-Fi required.

Get Sherlock — $159 See how it works

Plans from $5/mo · No contracts · Cellular service included · Backed by our peace-of-mind guarantee