Wattmon - Intelligent Remote Monitoring and Control

Wattmon helps you log data, monitor and control your devices over the Internet


Access your data over the Internet using any browser or smart phone


Log data and control your devices with automated rules - no programming required!


View intuitive graphs to understand and troubleshoot your system easily

On-Grid Solutions

PV Plant Monitoring

Connect multiple inverters and energy meters along with weather sensors such as irradiation, wind speed and temperature to keep track of plant performance through the Wattmon EMS cloud. Our platform supports most inverters and power meters out of the box, and can be easily customized to work with new ones.

Zero Feed In / Zero Export

For plants that have restrictions on energy exporting, our solution allows you to dynamically control output power on all inverters in the system – on a single device or across multiple rooftops and ensure that no power is exported to the grid while maintaining maximum generation from solar.

DG Protection

Solar plants can now be run together with diesel generators by controlling solar generation to ensure a healthy minimum load on the genset. This increases fuel efficiency and means your solar plant does not need to remain idle during those power cuts!

Off-Grid Solutions

Battery monitoring

Keep track of the state of charge of your battery bank and understand charge / discharge profiles.

Solar Pumping

Connect to a VFD and keep track of solar generation and water volumes pumped to ensure proper functioning of remote solar pumps.

Features & Benefits

Highly Versatile
Lets you customise device to your exact needs with intuitive interfaces
Easy To Use
Allows non-programmers to configure and automate things
Accessible from your phone, tablet and pc through our proxy server from anywhere
Communicate over TLS1.2 encryption over HTTPS and MQTTS
Industry Compliant Communications
Integrate new and existing devices easily using Modbus RTU & and Modbus TCP, as well as custom protocols
Local Storage
Securely store your data locally, control who can see it
M2M & Cloud Ready
Use Machine to Machine (M2M) protocols to upload data to your own server or use our advanced EMS portal
Write your own scripts in a built-in editor using uPHP or our blockly-based visual code editor to extend functionality
Multiple Network Protocols
Multiple Network Adapters
Connect through Ethernet, 2G, 3G and 4G (via dongle) and Wi-Fi (M2 Only)

Versatile Solutions

Monitoring Hardware
Devices that let you get to your data remotely with minimal hassle
Cloud Portal
Find out how our cloud based portal can help you
Understand the Wattmon system quickly

The Solar Radiation Sensor, or solar pyranometer, measures global radiation, the sum
at the point of measurement of both the direct and diffuse components of solar
irradiance. The sensor’s transducer, which converts incident radiation to electrical
current, is a silicon photodiode with wide spectral response. From the sensor’s output
voltage, the console calculates and displays solar irradiance. It also integrates the
irradiance values and displays total incident energy over a set period of time.
The outer shell shields the sensor body from thermal radiation and provides an airflow
path for convection cooling of the body, minimizing heating of the sensor interior. It
includes a cutoff ring for cosine response, a level indicator, and fins to aid in aligning the
sensor with the sun’s rays. The space between the shield and the body also provides a
runoff path for water, greatly reducing the possibility of rain- or irrigation-water
entrapment. The diffuser is welded to the body for a weather-tight seal; it provides an
excellent cosine response. The transducer is an hermetically-sealed silicon photodiode
with integrated amplifier . Spring-loaded mounting screws, in conjunction with the level
indicator, enable rapid and accurate leveling of the sensor. Each sensor is calibrated
against a secondary standard Pyranometer in natural daylight.

Operating Temperature : -40° to +65° C
Storage Temperature : -45° to +70°C
Transducer : Silicon photodiode
Spectral Response : 400 to 1100 nanometers
Cosine Response
Percent of Reading : ±3% (0° to ±70° ), ±10% (±70° to ±85° )
Percent of Full Scale : ±2% (0° to ±90°)
Temperature Coefficient : + 0.12% per °C
Reference temperature : 25°C
Housing Material : UV-resistant PVC plastic
Weight : 250 g
Range : 0 to 1800 W/m2
Accuracy : ±5% of full scale
Drift : up to ±2% per year
Output : 0 to 3 VDC (0- 1800 w/m2)
Power supply : 5 VDC


This device can be interfaced directly with the WattmonPRO or with the A5S1

Contact us for pricing details.

Connection Diagram


REI 2019 Coming Up!

We are excited to be participating in this year's renewable energy expo REI 2019 between 18 and 20 September at Greater Noida - this mega event is one of the largest in Asia and brings over 30,000 visitors and 1,400 exhibitors from around the globe.

Please visit us at booth 1.6 - right at the main entrance in hall 1.  We will be showcasing our power control solutions and officially releasing our new product - the Wattmon M2!

REI 2018

It's that time of year again!  We look forward to interaction with all of you this year at REI 2018 in Greater Noida (if you aren't already planning it - it's between September 18 and 20, 2018).   We have had a great year and expanded our support for inverters and power meters, perfected power control for both zero export and diesel generator protection, and most importantly we are going to be launching a new product as is our tradition every year!

So make sure to visit us at Hall 1 Booth 6 - right at the entrance on the right side!