Controller MEGA CtrlM 4x4 WiFi for a solar collector comprises a temperature sensor 4 and 4 relay outputs. Supports programming, remote web-monitoring, boiler schedule, etc ...

The controller is used to control and monitor the solar collectors.

The controller MEGA CtlrM 4x4 or 8x8 already delivered with firmware installed toll MEGA CtrlM

Features:
support up to 16 digital
temperature sensor circuit in one WAN / TA tank or hot water tank 2 + TA
Ability heating tanks priority
heating boiler schedule (up to 6 day intervals)
bypass (emergency cooling function)
antilegionela function (bacteria), and anti-freeze
Counting generated heat (energy )
Support solar power sensor (optional)
Support digital flowmeter (optional)
Writing data to SD card convenient menu
programmable outputs (8 outputs)
Support for additional 4 temperature sensors
rapid and convenient connection of temperature sensors

Basic configuration:

controller power supply from USB
4 digital temperature sensor in the stainless steel sleeves
WiFi module
4 outputs for connecting the pumps, valves, and etc
Releasable terminals for connecting sensors, and outputs 15 pieces
2A Maximum current outputs. The output must switch only AC!

http://ilog2.com/list/