myDTC Differential Temperature Controllers

Welcome! We have been making differential temperature controllers for D.I.Y. solar hot water and solar air heating for 10 years. Our differential controllers are reliable, easy to use, and full featured. All of our differential controllers are fully programmable and we service what we sell here in the USA. Thanks for visiting!

Features:

2 Temperature Sensor Inputs (10k NTC Type) (-30F - 257F) + Onboard Local Temp Sensor
2 Dry Contact Relay Outputs (2 pin, Form A) (0-30VDC / 0-120 VAC, 5 amps load)
Fully programmable Differential Temperature Control (Heating or Cooling), Thermostat (Heating or Cooling) on each of 2 relay outputs
Simple LED display and Touch Buttons for easy configuration and status
Wide Range Universal Power Input: 12-32 VDC or 12-24 VAC Transient Protected
Controller Kit comes with 2 Ring Lug, weatherproof NTC 10K temperature sensors
DIN Rail mounting option available

4 Temperature Sensor Inputs (10k NTC Type) (-30F - 257F)
2 Dry Contact Relay Outputs (3 pin, Form C) (30VDC / 120 VAC, 8 amps)
Supports Differential Temperature Control (Heat or Cool), Thermostat (Heat or Cool), RH Control, Time of Day Timer and Cyclic Timer Control on each of 2 relay outputs
Optional Relative Humidity Sensor Option required for Humidistat control modes
Large Backlit LCD display and Touch Buttons for easy configuration and status
Real Time Clock
12VDC Powering, diode protected, DIN Rail mount

8 Temperature Sensor Inputs (10k NTC Type) (-30F - 284F)
4 Relay Outputs (3 pin, Form C) (30VDC / 120/240 VAC, 6 amps)
4 ports of programmable temperature control
Supports Differential Temperature Control (Heat or Cool), Thermostat (Heat or Cool), Outdoor Reset, RH Control, Time of Day Timer and Cyclic Timer Control on each of 4 outputs.
Relative Humidity Sensor Input with Humidistat control modes
Large Backlit LCD display for easy configuration and status
Real Time Clock and Logging Capability built in
12VDC Power Input, diode protected, DIN Rail mount

Supports upto 4 differential temperature control loops for applications like solar hot water and air heating, root cellar and attic differential cooling, equalization, etc.
Supports upto 4 thermostat controls for heating and cooling calls, greenhouse fan and vent controls, and temperature alarming for refrigeration and motor overheating, etc.
Supports upto 4 time of day timers with dual on/off times for applications like watering, lighting control, greenhouse controls, etc.
Support cyclic timer applications for hot water circulation, greenhouse misting and watering, etc.
Supports outdoor reset control for wood stove boiler control
Supports humidistat control with optional humidity sensor: greenhouses
Logging of all temp sensors, RH sensor and output states with adjustable logging period, 500 records, SMART Cable connector provided for downloading.