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Necto Greenhouse Temperature Monitor

Necto Greenhouse Temperature Monitor

Protect your crops with 24/7 environmental oversight with the most reliable temperature monitor ever built.

  • Works anywhere with built-in 4G LTE - no Wi-Fi required
  • Real-time text and email alerts for temperature, humidity, and power status
  • Monitors Greenhouse conditions 24/7, even when you're away
  • Plug-and-play setup - install in minutes
  • Operates during power outages on 72-hour backup battery
  • Most Popular
  • No Contracts No Contracts
  • Cancel anytime Cancel anytime
  • Free shipping Free shipping
  • 30 day money back guarantee 30 day money back guarantee
  • Lifetime Warranty Lifetime Warranty
What is in the box
  • Necto temperature monitor
  • Adhesive Wall Mount
  • USB-C Charger
  • USB Adapter
  • Mounting screws
  • Quick Start Guide
Specifications

Technical Details:

  • Product Dimensions: 2.7"W x 2.7"H
  • Mounting Type: Wall Mount
  • Item Weight: 2.15 Ounces

Battery:

  • Internal Li-Ion (Rechargeable)
  • Lasts up to 72 hours when fully charged.
  • Keep plugged in for continuous monitoring.

Operating Range:

  • Temperature – 0°F to 120°F
  • Relative Humidity – 10% to 95%, non-condensing

Cellular Connectivity:

  • Built in 4G LTE SIM card (LTE-M)
  • Works with various carriers including AT&T, T-Mobile, and Cellular One.
  • Works in the U.S, Canada, and Mexico
Cellular Subscription

Necto uses a built-in SIM card with a 4G connection to send real-time alerts—no Wi-Fi needed. To ensure continuous updates, a network plan is required to cover data and SMS usage.

All devices come with a 2 Year Subscription Included. There are NO additional costs or hidden fees. After 2 years, you can renew the subscription from the app for ONLY $6.99 a month.

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Necto Greenhouse Temperature Monitor

Necto Greenhouse Temperature Monitor

Device +

$200.00

As Seen On

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Nationwide Cellular Coverage — No Wi-Fi Needed

The Necto Cellular Sensor ensures reliable connectivity through 4G LTE, eliminating the need for WiFi. With a built-in SIM card that connects to AT&T, T-Mobile, and Cellular One networks, you'll receive real-time updates and alerts anywhere you go.

  • No WiFi Required

    Connects via built-in 4G LTE for coverage wherever your RV goes.

  • Multi-Network SIM

    Automatically connects to the strongest available network (AT&T, T-Mobile, or Cellular One) for maximum reliability.

  • Real-Time Alerts

    Get notified instantly by text, email, or push notification if conditions become unsafe (and when they return to normal)

  • Backup Battery

    Can send power loss alerts and keeps running during power outages for uninterrupted monitoring.

Loved by RV Pet Owners Nationwide

Hundreds of RV owners across the country trust Necto to keep their pets safe while they’re away. From weekend getaways to cross-country adventures, they rely on real-time alerts and 24/7 monitoring for total peace of mind.

See How Necto Compares (and Saves You More)

Necto Waggle Marcell Tempstick Cabinpulse
Monthly Fee $0 for 2 yrs, then $6.99/mo $19.83–$29.99/mo $8.25–$24.95/mo FREE forever $5.99 CAD/mo
2-Year Total Cost $200 $575–$819 $397–$798 $139 $393 CAD
Connectivity 4G LTE 
(Multi-Network) 4G LTE (Verizon) Cellular 
(Verizon/AT&T) Wi-Fi Only 4G LTE 
(Multi-Network)
Backup Battery 72 hours 4–6 days 48 hours 1+ year (AA) 8 hours
Amazon Rating 4.8 stars 4.0 stars 4.2 stars 4.4 stars 4.5 stars
Device Price $200 $99–$149 $199–$329 $139 $249 CAD

Check in From Anywhere with the Necto App

  • Customize Thresholds
  • Multiple alert methods
  • Data history & Reports
App store Google Play

Frequently Asked Questions

Do I need a phone contract?

Necto devices come with a built-in SIM card, eliminating the need for users to sign up with a separate cell phone company. This SIM card is pre-installed and activated, ready to connect to the cellular network right out of the box

Why is a subscription required?

To ensure continuous updates Necto uses a build-in SIM card with 4G connection to send real-time alerts. A network plan is required to cover data and SMS usage. Save 47% with an annual plan.

Can I add multiple contacts for alerts?

You can add up to 5 email addresses and phone numbers to receive unlimited text/email notifications if critical changes in temperature, humidity, or power status occur.

How often is data updated?

Every 10 minutes the temperature and humidity readings are updated on the user portal. Each reading is stored on our servers for 1 year, and can be downloaded to view anytime as a csv file.

Which network does it operate on?

The built-in sim card can connect to AT&T, T-Mobile, and Cellular One 4G LTE networks. It will automatically connects to the closest one.