Temperature sensor

12V Digital Temperature Trigger Module With Waterproof Probe

Compact 12 volt temperature controller designed to activate a relay output when a user defined temperature threshold is reached. Ideal for triggering alarms, ventilation fans, heaters, or other 12V equipment based on real temperature conditions.

Key Features

• Operates on standard 12V DC systems
• Adjustable temperature range from -58°F to 230°F
• Simple ON and OFF relay control
• 0.5 second refresh rate for fast response
• High precision sensing with 0.1°F resolution within primary display range
• Adjustable differential setting to prevent rapid cycling
• Waterproof 10K NTC temperature probe included
• Built in high temperature limit protection

Technical Specifications

Operating Voltage
12V DC

Temperature Adjustment Range
-58°F to 230°F

Display Resolution
0.1°F from approximately 14°F to 212°F
1°F outside that range

Control Accuracy
Approximately ±0.2°F equivalent

Relay Output
Single channel mechanical relay
Rated up to 20A at 12V DC

Current Draw
Idle approximately 35mA
Active approximately 65mA

Operating Environment
Ambient temperature 14°F to 140°F
Humidity range 20 percent to 85 percent

Board Size
Approximately 1.9 inches x 1.6 inches

Included

• 12V digital temperature control module
• Waterproof temperature probe

ADDITIONAL INFORMATION

It can trigger the relay at either a high temperature or a low temperature. It is not “dual temp” at the same time, but it can be configured for either direction.

Here is what it actually is:

It is a single setpoint controller with selectable trigger direction.

Meaning:

You choose one temperature.
You choose whether the relay turns on when temperature goes above it or below it.

That is controlled by the mode setting.