Ships from Toronto, Ontario
Standard tracked shipping is free. Taxes are calculated by Stripe from the shipping address during checkout.
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HavnCraft Sentry
For basements, garages, laundry rooms, utility spaces and seasonal properties where leaks, humidity and freeze risk can go unnoticed.
Before you buy
What the standard kit includes before you choose a shell.
App guided setup
Use HavnCraft Home to scan the device label, choose a 2.4 GHz Wi-Fi network, bind the device and monitor alerts.
Certification pending
Final product certification, labelling and battery-runtime claims are pending validation.
Package contents
Standard kit contents.
HavnCraft Sentry assembled monitor
Ready-to-use monitor with the selected standard shell.
External leak rope
Routed to the highest-risk water area; the main unit should stay above the floor.
USB-C cable
For recommended continuous power.
Serviceable AA battery compartment
3xAA battery behaviour is being validated with final firmware.
Quick setup guide
BLE provisioning, account binding and placement guidance.
Specifications
Core specifications and operating boundaries.
Dimensions
Final enclosure dimensions pending production verification
Weight
Pending final battery and enclosure validation
Enclosure material
Bambu PLA Matte / PETG / ASA depending on shell selection
Operating temperature
Pending final hardware validation
Operating humidity
Pending final hardware validation
Temperature accuracy
Pending final calibration test report
Humidity accuracy
Pending final calibration test report
Water sensor type
External conductive leak rope
Leak rope length
Standard external rope included; final retail length to be confirmed
USB input
USB-C continuous power recommended
Battery type
3xAA compartment
Battery role
Backup/runtime behaviour pending final firmware testing
Verified battery runtime
Battery runtime testing is in progress
Wi-Fi
2.4 GHz Wi-Fi
Bluetooth
BLE for setup and provisioning
Local alarm
Buzzer and status LED planned; final behaviour pending validation
App platforms
iOS and Android companion app for setup, monitoring and alerts
Ingress rating
The main unit is not waterproof. Keep it above the floor and route only the external leak rope to the water-risk area.
Warranty
1-year limited warranty for production orders
Certification status
ISED/FCC final product status pending; no certification mark is claimed on this site
HavnCraft Sentry is an early-warning environmental monitor. It is not a life-safety device, smoke alarm, carbon-monoxide alarm, flood-prevention system or certified mould detector. Alerts depend on device placement, power, network availability and notification settings.
1. Choose hardware
Maker Edition Planned later for DIY users. Not the default choice for first-time homeowners. Preview2. Pick a standard shell
These are examples, not limits.
After checkout, describe the shell you want or upload a reference image. The AI preview keeps the real HavnCraft Sentry enclosure, cable port, LED window, mounting and battery access intact while adapting the outside surface to your idea.
Pet portrait relief
Example: turn a pet photo into a shallow raised front relief.
Name or short phrase badge
Example: add a room name, family name, cottage name or short phrase as printable raised text.
3. Included services
- 6 ft external leak rope
- iOS and Android companion app
- Battery monitoring and low-battery alerts
- Core monitoring - Device health, local alarm, history, OTA readiness, and essential alerts.
Fixed included items are shown as a list, not checkboxes. No paid subscription is preselected.
4. Review before checkout
- Hardware
- USD $69
- Shell
- Included
- Core services
- Included
- Custom shell
- Not selected
Subtotal before tax
USD $69
Ships from Toronto, Ontario. Taxes are calculated by Stripe from shipping address. HavnCraft Sentry is an early-warning environmental monitor. It is not a life-safety device, smoke alarm, carbon-monoxide alarm, flood-prevention system or certified mould detector. Alerts depend on device placement, power, network availability and notification settings.