EnviSensor WiFi Battery — wireless temperature and humidity data logger
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EnviSensor WiFi Battery — wireless, battery-powered temperature and humidity data logger
EnviSensor WiFi Battery is a self-contained measuring device designed for distributed environmental monitoring across many sites at once. It requires no mains power and no central hub — it connects directly to a local WiFi router or Access Point (2.4 GHz, IEEE 802.11 b/g/n) and sends data exclusively to the CE MonitorApp cloud application.
Power and operating time
The device is powered by 3 rechargeable AA batteries that are easy to replace — you can also use standard 1.5 V AA batteries or connect external power via the micro USB port, e.g. from a power bank. Operating time on a single charge is up to 62 days, depending on ambient conditions, battery condition, the set interval and WiFi connection stability.
How measurement and data transmission work
EnviSensor WiFi Battery measures temperature and humidity every 10 minutes and then goes into sleep mode to save energy. After each measurement, the device connects to the WiFi network and sends the data directly to CE MonitorApp — as an HTTPS POST request encrypted with TLS v1.2. Communication is one-way, and the transmitted data includes only the unique device ID, the measurement result and the battery charge level — no sensitive data whatsoever. The temperature and humidity sensor can be detached from the base without dismounting the device.
| Power | 3x AA (rechargeable/1.5V battery) or micro USB |
| Operating time | 31–62 days on a single charge |
| Connectivity | WiFi 2.4 GHz, IEEE 802.11 b/g/n |
| Measurement interval | the measurement interval is configurable (1min - 24h); every 10 minutes recommended |
| Data transmission | HTTPS POST, TLS v1.2, one-way |
| Measured parameters | Temperature, humidity |
| Mounting | Cable ties, any objects |
Specification
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Power: 3x AA rechargeable battery or 1.5V battery, optionally micro USB (e.g. power bank)
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Connectivity: WiFi 2.4 GHz, IEEE 802.11 b/g/n, directly to the router/AP, no central hub
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Measurement: temperature and humidity every 10 minutes
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Sensor: high quality, detachable from the base without dismounting
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Transmission: HTTPS POST, TLS v1.2, one-way communication to the cloud
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Transmitted data: unique device ID, measurement result, battery charge level
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Mounting: cable ties, any objects
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Configuration: locally via USB cable, dedicated Windows application
CE MonitorApp cloud application
Data from all devices goes to CE MonitorApp — an application designed to handle thousands of data loggers in real time, with access for multiple users from anywhere in the world (browser or Android mobile app). The application keeps a continuous measurement history and performs round-the-clock (24/7) alarm detection — when defined thresholds are exceeded, users are notified visually in the app, by e-mail, SMS and push.
Dedicated infrastructure
The platform is hosted on Microsoft Azure (cloud region in Warsaw). For deployments requiring full data separation, a dedicated application instance can be set up together with a separate Microsoft SQL Server database (hardware encryption) and a dedicated domain — completely isolated from the main platform.
Applications
Distributed environmental monitoring across many sites at once — wherever simple installation without cabling, long battery life and centralized viewing of data from multiple locations in a single application matter.