--- product_id: 154562607 title: "Room Alert 4ER Rack Mountable Temperature & Environment Monitor – Supports 4 external sensors, 24/7 online & software alerting and reporting, Made in the USA" brand: "room alert" price: "¥3860" currency: JPY in_stock: false url: https://www.desertcart.jp/products/154562607-room-alert-4er-rack-mountable-temperature-and-environment-monitor-supports store_origin: JP region: Japan --- # 24/7 real-time alerts Ethernet Plug & Play 4 external sensor ports Room Alert 4ER Rack Mountable Temperature & Environment Monitor – Supports 4 external sensors, 24/7 online & software alerting and reporting, Made in the USA **Brand:** room alert **Price:** ¥3860 **Availability:** ❌ Out of Stock ## Summary > 🌡️ Stay cool, stay connected — your data center’s new best friend! ## Quick Answers - **What is this?** Room Alert 4ER Rack Mountable Temperature & Environment Monitor – Supports 4 external sensors, 24/7 online & software alerting and reporting, Made in the USA by room alert - **How much does it cost?** ¥3860 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/154562607-room-alert-4er-rack-mountable-temperature-and-environment-monitor-supports) ## Best For - room alert enthusiasts ## Why This Product - Trusted room alert brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Plug & Play Setup:** Easy Ethernet connection means you’re monitoring your environment in minutes, no hassle required. - • **Multi-Sensor Monitoring:** Supports up to 4 external sensors for temperature, humidity, flood, and more. - • **Seamless Rack Integration:** Compact 1U rack-mount design fits perfectly in any server environment. - • **Instant Alerts, Zero Downtime:** Receive real-time notifications via email, SMS, SNMP, and web updates to stay ahead of issues. - • **Comprehensive Dashboard Access:** Manage and monitor remotely with AVTECH’s online Room Alert dashboard and Device ManageR software. ## Overview The Room Alert 4ER is a professional-grade, rack-mountable environment monitor designed for IT and facilities managers. It supports up to four external sensors to track temperature, humidity, flood, and other critical conditions. Featuring easy Ethernet plug-and-play setup, 24/7 real-time alerting via multiple channels, and comprehensive remote management through AVTECH’s software and online dashboard, it ensures your data center or server room stays protected and optimized around the clock. ## Description Room Alert 4ER is one of AVTECH's hardware solutions for "IT & Facilities Environment Monitoring, Alerting & More". This environment monitor helps to monitor temperature, humidity, flood, power, smoke, motion and more, and is designed specifically to assist with monitoring computer room, data center, or any other facility environment factors in multiple locations up to hundreds of feet apart. This temperature and environment monitor is perfect for a single rack or small computer room. The Room Alert 4ER comes with two (2) Digital Temperature Sensors. Add a digital sensor and switch sensor to expand monitored conditions, such as our Digital Humidity Sensor or Flood Sensor. This model also supports a Light Tower, Light Tower w/Audio or Relay Switch Sensor and is the only model to allow this without using a Light Tower & Relay Adapter (LTA). Room Alert can be monitored and managed through AVTECH's online Room Alert Account dashboard (included with purchase), downloadable Room Alert management software (also included), built-in web server interface, or any other SNMP-enabled monitoring platform. ## Features - Easy Ethernet ‘Plug & Play’ setup for immediate IT & facilities physical environment monitoring. - Includes built-in Digital Temperature sensor, Device ManageR software & online Room Alert.com Account dashboard. - Includes external Digital Temperature Sensor. - Includes ports for 2 digital sensors, 1 switch sensor or dry contact & port for Light Tower or Relay. - Offers advanced alerting by email, email-to-SMS, SNMP, webpage update and more. ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | AVTECH Software | | Part Number | RA4E-ES1-RAS | | Item model number | RA4ER | | Size | Rack Mount, 1U 19" | | Colour | Red | | Material | PLA_(Polylactic_Acid), BPA_(Bisphenol_A), PE_(Polyethylene), PS_(Polystyrene), Metal | | Item Package Quantity | 1 | | Batteries included? | No | | Batteries Required? | No | ## Images ![Room Alert 4ER Rack Mountable Temperature & Environment Monitor – Supports 4 external sensors, 24/7 online & software alerting and reporting, Made in the USA - Image 1](https://m.media-amazon.com/images/I/71yf1ft2DQL.jpg) ![Room Alert 4ER Rack Mountable Temperature & Environment Monitor – Supports 4 external sensors, 24/7 online & software alerting and reporting, Made in the USA - Image 2](https://m.media-amazon.com/images/I/41R+kg2k6wL.jpg) ![Room Alert 4ER Rack Mountable Temperature & Environment Monitor – Supports 4 external sensors, 24/7 online & software alerting and reporting, Made in the USA - Image 3](https://m.media-amazon.com/images/I/31mastA8UUL.jpg) ![Room Alert 4ER Rack Mountable Temperature & Environment Monitor – Supports 4 external sensors, 24/7 online & software alerting and reporting, Made in the USA - Image 4](https://m.media-amazon.com/images/I/312tQUnT-LL.jpg) ![Room Alert 4ER Rack Mountable Temperature & Environment Monitor – Supports 4 external sensors, 24/7 online & software alerting and reporting, Made in the USA - Image 5](https://m.media-amazon.com/images/I/61AHwcP8rQL.jpg) ## Questions & Answers **Q: What is the minimun and maximun temperature?** A: The Room Alert 4ER, and other Room Alert monitors in the product lineup, can read temperatures and operate in the range from -40F to 185F (-40C to 85C). It can operate in non-condensing humidity levels from 5% to 85% RH. It can detect temperature changes with a resolution of 0.03125C and an overall accuracy of +/-2C. **Q: does this come with power or how is it powered** A: Room Alert 4ER ships with a 5V 1A power adapter that works on 110/220V AC. If shipped within the USA or Canada, it includes a standard US plug. If shipped internationally, it includes a multi-plug with different plug types included for different parts of the world. With products in 186 countries, we're very familiar with the power requirements throughout the world and provide power adapters appropriate for use with Room Alert. If you prefer Power over Ethernet (PoE), our Room Alert 32S, Room Alert 32E, Room Alert 12E and Room Alert 3E models all support PoE in addition to standard AC power adapters. Thank you and please let us know if we can help further. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/154562607-room-alert-4er-rack-mountable-temperature-and-environment-monitor-supports](https://www.desertcart.jp/products/154562607-room-alert-4er-rack-mountable-temperature-and-environment-monitor-supports) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-06*