NECTO
NECTO Cellular Temperature Monitor
Bottom line: The NECTO Cellular Temperature Monitor: 2 years of 4G LTE service included, no WiFi or contract needed; main trade-off: cellular service requires a paid monthly renewal after the 2-year term.
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Pros & Cons
Pros
- ✓ 2 years of 4G LTE service included, no WiFi or contract needed
- ✓ Built-in battery runs about 3 days and keeps alerting during power outages
- ✓ Up to 5 contacts get unlimited text and email alerts
- ✓ Sensor samples every 10 seconds; 1 year of readings exportable as CSV
- ✓ 3-in-1 unit tracks temperature, humidity, and power loss from one outlet
Cons
- ✗ Cellular service requires a paid monthly renewal after the 2-year term
- ✗ Online portal refreshes only every 10 minutes despite 10-second sampling
- ✗ Battery backup lasts about 3 days, too short for extended outages
- ✗ Relies on 4G LTE coverage; weak-signal RV sites or cabins may drop out
Manufacturer description
The NECTO Cellular Temperature Monitor watches temperature, humidity, and power status in places where WiFi is unreliable or missing, such as an RV, a vacation home, a server room, or a vehicle with pets inside. It has a built-in multi-network SIM and comes with 2 full years of 4G LTE service, with no contract and no router to set up. After that, you can renew the service from the app. You set your own high and low temperature and humidity limits. Up to 5 contacts get unlimited text and email alerts when a reading crosses a limit or the power goes out. If the outlet loses power, the…
SpecPicks Verdict
SpecPicks scored NECTO Cellular Temperature Monitor using a rating × review-volume × price-fit model applied to published specs and reviews across the accessories category. NECTO's accessories lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for accessories of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
Does the NECTO temperature monitor need WiFi to send alerts?
No. It uses a built-in multi-network SIM card on 4G LTE, so it works without WiFi. 2 years of cellular service are included, with no contract.
What happens when the 2 years of cellular service run out?
You can renew the subscription monthly in the NECTO app. Check the app or the product listing for the current renewal rate.
Will it still alert me if the power goes out?
Yes. It sends an alert when it detects a power loss, and its rechargeable internal battery keeps it running for about 3 days. It also alerts you if the battery gets low or the device disconnects from the network.
How many people can get alerts, and can I set my own limits?
You can add up to 5 contacts for unlimited text and email alerts. You set the high and low temperature and humidity limits yourself in the app.
How often does it take readings, and can I export the data?
The sensor takes a reading every 10 seconds and uploads the latest one to the online portal every 10 minutes. Readings are kept for 1 year and can be downloaded as a CSV file.
Key Features
- 2 Years of Cellular Service Included – Necto offers the most affordable cellular-enabled sensor with 2 full years of 4G LTE service included—no hidden fees, contracts, or WiFi required. With a built-in multi-network SIM card, you can remotely monitor conditions 24/7 and receive real-time alerts. After 2 years, you can renew the subscription from the app for only $6.99 a month.
- Instant Alert & 24/7 Monitoring - Keep tabs on your Home, RV, Car, or Pets from anywhere with the 3-in-1 temperature, humidity & power outage monitor. Customize the high and low temp/humidity thresholds and add up to 5 contacts for unlimited text and email alerts. Receive real-time alerts if critical changes in temp/humidity or a power loss occurs.
- Rechargeable Internal Battery - The Necto smart RV and pet monitor has a 3 day long-lasting rechargeable battery. Unlike WiFi sensors, Necto provides continuous monitoring in the event of a power outage, via its built-in battery and cellular technology. Receive instant alerts on your phone when battery power is low or if the device disconnects from the network.
- Intuitive Mobile App & Easy Setup - Our user-friendly mobile app gives you remote access to your sensor from anywhere. Use your smartphone or PC to customize alert thresholds, view past readings, and manage device settings with ease. The sensor takes minutes to install and requires no technical expertise. Simply activate the device through the app and plug it into any standard wall outlet.
- Fast Refresh & Free Data Storage - The industrial built-in temperature and humidity sensor takes readings every 10 seconds to make sure the temp/humidity are within the safe range. Every 10 minutes the most recent reading is updated on the online portal. Readings are stored on our servers for 1 year and can be downloaded anytime on a CSV file.
Full Specifications
| Brand | NECTO |
|---|---|
| Color | White |
| Model | 2 Years Subscription Included |
| Weight | 4g |
| Style Name | Contemporary |
| Unit Count | 1.0 Count |
| Part Number | MS150 |
| Reusability | Rechargeable |
| Connectivity | WiFi |
| Power Source | Battery Powered |
| Compatibility | PC |
| Special Feature | App Companion, Alarm, 24/7 Monitoring, Power Failure Detection |
| Additional Features | App Companion, Alarm, 24/7 Monitoring, Power Failure Detection |
| Included Components | Sensor, Adhesive Wall Mount, USB-C Charger, USB Converter, Mounting screws |
| Number of Batteries | 1 Lithium Ion batteries required. (included) |
| Connectivity Technology | Cellular |
| Upper Temperature Range | 120 Degrees Fahrenheit |
| Smart Home Compatibility | Smart Home Compatible |
| EU Spare Part Availability Duration | 2 Years |
| Full listing title | Cellular Temperature Monitor - Remote Power Failure Alarm & Humidity Sensor with Unlimited Alerts. Temp Monitoring System for RV Pet Safety, Vacation Home, Server Room. No Fees or WiFi Required |
Ready to buy?
Cellular Temperature Monitor - Remote Power Failure Alarm & Humidity Sensor with Unlimited Alerts. Temp Monitoring System for RV Pet Safety, Vacation Home, Server Room. No Fees or WiFi Required is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
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