Temperature and alarm monitoring, without a hub

Sensors that join your existing WiFi and alert your phone when a cooler drifts, a freezer fails, or an alarm panel trips. Basic monitoring for up to four sensors is included at no charge.

How to buy View Sensors
wifi Direct WiFi — No Gateway notifications_active Real-time Push Alerts phone_iphone iOS & Android Apps thermostat -55°C to +125°C Range

No gateway or hub

Most monitoring systems need an expensive hub at every location. Fahren sensors connect directly to your existing WiFi network and report to the cloud. One less thing to buy, install, and troubleshoot.

What you get

Every plan includes the alerts. Paid plans add capacity, longer history and phone calls.

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Instant Push Alerts

Get notified the moment temperature or humidity crosses your thresholds. Configurable duration filters prevent false alarms from brief spikes.

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Historical Data & Trends

View hourly, daily, and monthly trends. Data retained for years with automatic aggregation. Export reports anytime.

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Team Sharing

Share sensors with your team. Multiple users can monitor the same locations with their own alert preferences.

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Offline Detection

Know immediately when a sensor goes offline. No-connection alarms alert you before a problem becomes a disaster.

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Web & Mobile Dashboard

Monitor from your phone, tablet, or desktop. Real-time readings with beautiful charts and at-a-glance status cards.

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Secure & Reliable

Encrypted data transmission, cloud-hosted infrastructure with automatic backups. Your data is safe and always accessible.

Who Uses Fahren?

If temperature matters to your business, Fahren has you covered.

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Restaurants & Food Service

Walk-in coolers, freezers, prep areas. Stay compliant with health codes.

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Server Rooms & Data Centers

Prevent overheating and equipment damage with continuous monitoring.

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Wine Cellars & Storage

Protect your collection with precise temperature and humidity tracking.

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Greenhouses & Agriculture

Optimize growing conditions with real-time environmental data.

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Warehouses & Cold Storage

Monitor multiple zones across large facilities from one dashboard.

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Vacation Properties

Know if pipes are freezing or HVAC fails while you're away.

How It Works

Up and running in under 5 minutes.

Plug In the Sensor

Power via USB-C. Connect to your WiFi network through the setup screen. Place it where you need monitoring.

Download the App

Create your account, add your sensor with a simple pairing code. Set your alert thresholds.

Monitor from Anywhere

Real-time readings on your phone or web dashboard. Get push notifications when something needs attention.

Choose Your Sensor

Two options for different monitoring needs.

Environment Sensor

$35 one-time
  • check_circle Temperature monitoring
  • check_circle Humidity monitoring
  • check_circle Barometric pressure
  • check_circle WiFi connected — no gateway
  • check_circle USB-C powered
  • check_circle Compact design

Ideal for: server rooms, offices, wine cellars, greenhouses

Probe Sensor

$40 one-time
  • check_circle Waterproof temperature probe
  • check_circle Extended range: -55°C to +125°C
  • check_circle Stainless steel probe tip
  • check_circle WiFi connected — no gateway
  • check_circle USB-C powered
  • check_circle 1m cable length

Ideal for: freezers, walk-in coolers, aquariums, HVAC ducts

Plans

Basic monitoring for up to four sensors is included at no charge. Paid plans add capacity, longer history and phone-call escalation.

Alerts to your phone, the in-app siren, every alarm type and unlimited history recording are on every plan, including free. Paid plans change how many sensors are covered and how far back you can look — nothing is ever deleted, and your full history reappears the moment you upgrade.

Over 50 sensors? Talk to us — we price those individually.

Request Hardware Pricing

Frequently Asked Questions

Do I need a gateway or hub?

No. Fahren sensors connect directly to your WiFi network and send data to the cloud. No additional hardware needed at each location.

What happens if my WiFi goes down?

You'll receive a "sensor offline" alert within minutes, so you know immediately. When WiFi reconnects, the sensor automatically resumes reporting.

How often does the sensor report data?

Every 15 minutes by default. Configurable from 1 to 30 minutes through the app.

Can I monitor from multiple devices?

Yes. Use the iOS app, Android app, and web dashboard simultaneously. Share sensors with team members — each person gets their own alert settings.

How long is data retained?

Raw readings are kept for 90 days. Hourly averages for 2 years. Daily averages are kept forever.

What's the sensor's WiFi range?

Same as any WiFi device — typically 30-50 feet indoors. For larger areas, use your existing WiFi access points or extenders.

Can I use this for health/safety compliance?

Yes. Fahren provides timestamped temperature logs that can be exported as reports for health inspections, audits, or insurance documentation.

How to buy

Fahren is sold and installed by refrigeration, plumbing and electrical contractors. Get in touch and we'll point you to a dealer — or set you up as one.

Contact Sales