EDGE Essential WiFi Water Leak Detector, Temperature & Humidity Data Logger & Alarm
No monthly fee on WiFi
Free shipping over $100 30-day money-back 2-year warranty Ships within 3 business days
Temperature & Humidity, Watched 24/7
Set your safe range, and get a text, phone call, email or push alert the moment the room drifts out of it.
A True Data Logger
Records every 1 to 30 minutes (you choose), stores up to 49,000 readings per sensor on the device and keeps your history in the cloud. Export the last 45 days to Excel anytime; advanced reports and full history come with Premium, included for the first year.
No Hub, No Gateway
Sets up in under 5 minutes and connects straight to 2.4 GHz WiFi, or to the cellular network on cellular models. Runs about 2 years on 4 AA batteries, depending on settings, with optional USB-C power.
Why MaxLinc Flood Protection is Superior
Engineered with three industry-leading capabilities that set MaxLinc apart from consumer spot leak detectors.
Simultaneous Multi-Channel Alerts to Your Whole Team
Unlike basic leak sensors that send a single app push or only notify 1 user, MaxLinc dispatches automated Voice Calls, SMS Text Messages, Emails, and App Push Notifications simultaneously to an UNLIMITED list of recipients.
360° Continuous Perimeter Sensing Wire (Up to 100m / 330 ft)
Most leak detectors only work if water drips onto a tiny 1-inch spot contact. MaxLinc uses a continuous, full-length sensitive cable. Water touching ANY point along the entire line triggers an immediate alarm. Chainable up to 100 meters (330 ft) to wrap around entire basements, server rack rows, or pipe perimeters.
Leak, Freeze & Damp Alerts from One Unit
On an EDGE Essential, the same unit that reads the leak cable also logs room temperature and humidity, so you hear about a freezing basement or rising damp, not only a leak.
- Phone calls
- SMS & email
- No monthly fee
- 2-year warranty
What it measures
- Ambient temperature-20°C to +70°C (-4°F to 158°F)Room air only. For inside fridges and freezers, use EDGE Thermo's external probes.
- Relative humidity0% to 99% RH
- Water leak / liquid presence360° perimeter wire (up to 100 m / 330 ft)
- Dry-contact input (cloud autodialer)Dry-contact input (e.g. door switch or alarm relay) that triggers call, text and email alerts
- Mold indexPredicts mold-growth risk from temperature and humidity
Specifications
| Measures | |
|---|---|
| Ambient temperature | -20°C to +70°C (-4°F to 158°F) |
| Relative humidity | 0% to 99% RH |
| Water leak / liquid presence | 360° perimeter wire (up to 100 m / 330 ft) |
| Dry-contact input (cloud autodialer) | Dry-contact input (e.g. door switch or alarm relay) that triggers call, text and email alerts |
| Mold index | Predicts mold-growth risk from temperature and humidity |
About EDGE Essential WiFi Water Leak Detector, Temperature & Humidity Data Logger & Alarm
Downloads and guides
| What you pay | WiFi |
|---|---|
| Device (one-time) | $189 |
| Ongoing fee | $0 |
| Email alerts | Free, unlimited |
| Push alerts | Free, unlimited |
| Texts and calls | about $3.70 credit included, then about 1.5¢ per text and about 3.7¢ per call. At zero credit, texts and calls stop; email and push continue. |
| Data history | Year 1: full history (Premium included). After that: 45 days and Excel export free, or Premium about $17.78/yr per device for full history and advanced reports |
| People who get alerts | Unlimited in year 1. Adding new people after year 1 needs Premium; people already on the list keep their alerts. |
| Example | A text and a call to 4 people costs about 21¢ |
Plans are billed annually, per device. Nothing is charged before year two.
Which EDGE is right for you?
Swipe to see more models
| Model | ![]() | ![]() | ![]() | ![]() | ![]() |
|---|---|---|---|---|---|
| Price (WiFi) | $159 | $229 | $199 | $219 | $199 |
| What it monitors | Room temperature and humidity | Temperature and humidity at a probe | Fridge and freezer | Vaccine fridge | CO2, air quality, temperature and humidity |
| Probes and range | Built-in sensor, -20°C to +70°C (-4°F to 158°F) | 1 external probe, -40°C to +125°C (-40°F to +257°F) | 2 cable probes, -55°C to +125°C (-67°F to +257°F) | 1 buffered probe, -20°C to +50°C (-4°F to +122°F) | Built-in sensors, -10°C to +60°C (14°F to 140°F) |
| Calibration certificate | Not included | Not included | Not included | NIST-traceable, included | Not included |
Every model: WiFi or Cellular, phone-call alerts, no monthly fee on WiFi; Cellular then about $26.67/yr.
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Questions before you buy
Do I need a subscription?
Not on WiFi. Live data, every alarm, 45 days of history with Excel export, and email and push alerts stay free. Texts (about 1.5¢) and calls (about 3.7¢) use the ~$3.70 credit included with every device. Year 1 includes Premium; after that it is optional at about $17.78/year per device, billed annually, for full history, reports and sharing with new people. Cellular: year 1 included, then about $26.67/year per device, which covers the cellular network and Premium.
What if the WiFi or power goes down?
EDGE runs on 4 AA batteries (about 2 years), so it keeps logging through a power cut. On WiFi, if the router goes down too, a no-connection alert tells you it went offline, and the stored readings upload when it is back. Cellular models do not need your router: on USB-C power, a power cut is reported at the next recording and sent by push, email and text.
How do the alerts work?
Set a high and a low limit. If a reading leaves the range, MaxLinc calls, texts, emails and pushes the people you choose, and the buzzer sounds on the device. Alerts repeat until the reading is back in range; anyone on the team can snooze an alarm for up to 24 hours by acknowledging it and entering the reason. Email and push alerts are free; texts cost about 1.5¢ and calls about 3.7¢ after the included ~$3.70 credit.
Which model do I need?
Fridge or freezer: EDGE Thermo. Room, basement or cottage: EDGE Essential. Vaccine fridge: EDGE Pharma One or Two. Air quality: EDGE Air. No WiFi where it goes: choose the Cellular version (it needs a cell signal).
Used for
- Finished basements
- Building mechanical rooms
- Server room / IT closet
- Under water heaters & sump pumps
- Laundry & utility rooms
- Near HVAC condensate drains







