Lowtemp Industries rosin press controller with temperature, time, pressure, and bag size settings.

Lowtemp Industries LT4 Rosin Press Controller with digital display showing temperature, time, and pressure.

Black rosin press controller with digital display showing temperature, time, and pressure settings.

Lowtemp Industries LT4 rosin press controller screen displaying 174°F temperature, 2:00 timer, and OFF button.

Lowtemp Industries LT4 Rosin Press Controller

Name: LT3 Rosin Press Heat and Pressure Controller by Lowtemp Industries – Dual-Zone Control and Real-Time Extraction Feedback
Brand: Lowtemp Industries
SKU: LT4
Price: 399.0 USD
Availability: InStock

Official Lowtemp Industries Dealer Model: LT4

$399.00 USD

starting from 0% interest financing from /mo.

7-inch capacitive touchscreen with 40% more screen area than the previous LT3 model
Built-in algorithm calculates true platen PSI based on your specific bag size and weight
Fully backward compatible with all LT3 heating elements and Lowtemp pressure sensors
1-year warranty on manufacturing defects and component failures
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Overview
Features
In Detail
Technical Specifications
Warranty
Owner's Manual
Frequently Asked Questions
Reviews

Who This Is For

You are upgrading to real-time graphing because guessing when a press is finished leads to blowouts and low yields.
You are moving to the LT4 because doing manual math for platen PSI every time you change bag sizes slows you down.
You are standardizing your workflow across multiple operators because inconsistent runs are hurting your batch quality.

What We Found

The screen responsiveness is a massive step up from the LT3, especially when you have gloves on.
The real-time graphing makes it easy to see the exact moment your yield peaks so you can stop the press.
We tell people to keep their LT3 sensors because they plug right into this unit with zero setup issues.

What Users Say

Operators say the recipe library helped them standardize their workflow across multiple shifts and staff.
Buyers tell us the automatic algorithm saved them from ruined bags by calculating the exact PSI for their bag.
Users mention that the larger screen makes tracking live pressure data much easier on the eyes during long shifts.

Lowtemp LT4 Rosin Press Controller | Pressure Graphing & WiFi

The Lowtemp LT4 Rosin Press Controller provides precise thermal and pressure management for rosin press systems. It replaces manual guesswork with real-time data visualization and automated calculations to ensure batch-to-batch consistency. This unit integrates with existing hardware to standardize the pressing workflow for both boutique and commercial labs.

7inchTouch screen display

400WTotal power output

1.63lbsController weight

Features

On-Screen Pressure Graphing

Visualizes the extraction curve in real time. This allows operators to identify the exact moment oil flow ceases to prevent over-pressing.

Recipe Library

Stores specific temperature and time parameters. This ensures every operator follows the exact same protocol for every strain.

Platen PSI Algorithm

Calculates the actual pressure applied to the material based on your filter bag dimensions. This prevents bag blowouts caused by excessive force.

Backwards Compatibility

Works with all previous LT3 heating elements and pressure sensors. This allows for a direct control-module upgrade without replacing your entire plate kit.

In Detail

The LT4 Controller introduces a 7-inch capacitive touch screen to replace traditional physical buttons. This interface displays real-time data from your pressure sensors and heating elements; it provides a visual extraction curve that helps you identify the end point of a press. For beginners, the simplest setup involves using the pre-loaded recipes to establish a baseline before fine-tuning variables. Platen PSI, which is the actual pressure exerted on the flower or hash, is calculated automatically to eliminate manual math errors.

Heats plates faster and stabilizes temperature more effectively than previous models
Bluetooth 5.0 and WiFi connectivity for over-the-air firmware updates
Integrated timer with automated start and stop functions
Standardizes extraction results across multiple operators via the recipe library

Technical Specifications

PHYSICAL

Controller Weight1.63 lbs (0.74 kgs)

Shipping Weight2.38 lbs (1.1 kgs)

ELECTRICAL

Input Voltage85 to 264 VAC

Input Current4A/115V AC, 2A/230V AC

Frequency47Hz to 63Hz, single phase

Total Power400W

CONNECTIVITY

WiFi Capability2.4 GHz Band Only (No 5GHz)

Bluetooth CapabilityBluetooth 5.0 (LE Only)

OPERATING LIMITS

Operating Temperature32 to 95 F (0 to 35 C)

Operating Humidity20 to 70% RH non-condensing

Operating Altitude2500 meters

Warranty

The LT4 Controller comes with a full one year warranty covering manufacturing defects and hardware failures. This coverage ensures your laboratory operations remain consistent and supported. Trimleaf is an authorized Lowtemp retailer; this unit ships with the full manufacturer warranty, valid for the original purchaser.

Owner's Manual

Product Manual

Frequently Asked Questions

Does this controller include the heating plates and pressure sensor?

No, this is the LT4 control module only. You must provide your own heating elements and pressure sensors, though it is fully backwards compatible with existing LT3 hardware.

How does the LT4 help prevent bag blowouts?

The Platen PSI algorithm calculates the real-time pressure on your material based on your specific bag size. By monitoring the on-screen graph, you can ensure you never exceed the physical limits of your filter bags.

Can I connect this to a 5GHz WiFi network?

No, the LT4 supports the 2.4 GHz WiFi band only. Ensure your router is configured to broadcast a 2.4 GHz signal for over-the-air updates.

What is the simplest way for a beginner to set this up?

Connect your existing LT3 or LT4 compatible plates and sensors to the rear ports. Use the recipe library to select a preset temperature and time, then follow the on-screen pressure graph to guide your press.

Can I save my own custom pressing profiles?

Yes, the integrated recipe library allows you to save specific parameters for different cultivars. This ensures that any operator can repeat a successful extraction with identical results.

How do I receive software updates?

Updates are delivered over-the-air via WiFi. Once connected to your local network, the controller will notify you when new firmware or features are available for installation.

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Questions About This Product?

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