Wireless Battery Monitoring

CellSPY gives you complete visibility of every battery in your system.

Consumer electronics have gotten smaller and more powerful, so why haven’t Battery Monitors?

CellSPY is the answer to clunky, outdated battery monitors. A Sleeker, Smaller, Modern solution for your business.


Regardless of battery chemistry, or system configuration, CellSPY is scalable to meet your individual needs.


Configurable data collection means you have real time resistance, DC/AC ripple voltage, and temperature measurements, per your selected frequency.


Installation is easier than ever: Connect the CellSPY to the tab and you’re done.

How Wireless Battery Monitoring works

CellSPY Highlights

CellSPY is the most elegant, IoT based solution to your battery monitoring challenges. Our family of sensors work together in unison to provide the most comprehensive, real time assessment of your battery room’s health.

Wireless Battery Monitoring

CellSPY measures Voltage, Temperature, and Resistance of each cell at configurable intervals; along with visual alarms, a sleek design, AR compatibility, and plug and play features make this the most advanced battery monitor on the market.

  • Accurate Voltage measurements (0.5%)
  • Accurate Temperature measurements (+/- 1C)
  • Accurate AC(Ripple) Voltage Measurement (1% accuracy)
  • Accurate Impedance Measurement (<3% error)

Wireless Current Transducer

The EMSYS Wireless Current Transducer measures the charge and discharge current with the same high accuracy regardless if the current is 1A, 400A, or even 1,000A

  • Dual core technology
  • High Accuracy and Linearity of Measurements
  • Non invasive thanks to the Hall effect

Wireless Ambient Monitor

The EMSYS Wireless Ambient Monitor provides ambient temperature in the cabinet and is useful in detecting faulty air conditioning or improper ventilation in a battery room. In conjunction with CellSPY, Wireless Ambient Monitors provide the most proactive detection of thermal runaway.

  • Accurate Temperature Measurement (+/- 0.01C)
  • Accurate Humidity Measurement (+/- 5%)
  • Accurate Pressure Measurement (+/- 0.5hPa)

Wireless Relay

The EMSYS Wireless Relay provides a way to remotely disconnect the power supply to a UPS. It is a critical element of the Thermal runaway protection system.

  • NO and NC varieties
  • 12-60 DCV Power Supply
  • Range exceeding 50m indoors


EMSYS tablets act as a gateway while simultaneously allowing users to interact directly with sensors in the corresponding cabinet.

  • Visual Alarming
  • 7in and 10in Variations
  • ARM Based Architecture

Mini Gateway

Our mini gateway is primarily designed for smaller and remote sites, often relaying data to a central gateway.

  • Compact and low power
  • Variety of Communication Protocols
  • ARM based architecture


The EMSYS Gateway is a standalone server used to collect data from the EMSYS family of wireless devices, allowing users to readily access collected data through a multitude of interfaces.

  • Variety of communication protocols
  • up to 2,000 monitors supported

For more technical details of every sensor in the CellSPY family, please see our resource section.

Web Application

Our web based application gives you complete visibility over your monitored assets, and the intuitive graphical interface means less time mastering a system, and more time doing what you need to do.

String Summary

Real time data of your batteries in graphical and numerical forms

Historical String Summary

Candlestick graphs and configurable time intervals mean easy identification of abnormal conditions.

Historical Individual Sensor

Identified an abnormality? Dig deeper with our powerful analytics software to get a complete picture of your battery’s performance over time.

Alarm Page

Configurable alarming means you get the important information immediately. From text alerts to email alerts, our system does the work and giving you action items according to your preset requirements.

Report Generation

We’ve made reporting easier than ever. Select the type of report, including start up, historical, load test, and many more. Configure it to your desired parameters and generate!

Report Page

For full sample reports, fill out the form below and contact us!

Request More Information