$500+ Orders on Lesman.com Ship Free via UPS Ground
The 301EM refrigerant controller has been designed to meet and exceed the ASHRAE and B-52 safety standards.
The 301EM was specifically designed to meet ASHRAE 15, B-52, and international mechanical code requirements. It can be configured to offer automatic fan, horn, and strobe activation.
The 301EM can be placed in a location that is separate from the detection area, making it safer to monitor the gas. It can have up to 20 sensors connected to it to get accurate readings of lower gas concentrations.
- Three alarm levels
- Works stand-alone or in a network
- LCD display
- Auto diagnostic capabilities
- Combine with 301IRF and S301D2 for a complete solution
Model Selection Guide
Use this table to find the right model for your application. Don't see the option you need? Call a Lesman sales specialist at 800-953-7626.
Description | Catalog Number | |
---|---|---|
301-EM Controller for Remote Refrigerant Sensing: Three 24VDC, Four Relay, Four 4-20mA Outputs | ||
Model | Controller | 301-EM-US3 |
Controller with Strobe Light and Horn | 301-EM-RFSA-US3 | |
301EM Sensors | R11 Refrigerant Gas Sensor | S301-IRF-R11 |
R22 Refrigerant Gas Sensor | S301-IRF-R22 | |
R123 Refrigerant Gas Sensor | S301-IRF-R123 | |
R134A Refrigerant Gas Sensor | S301-IRF-R134A | |
R404A Refrigerant Gas Sensor | S301-IRF-R404A | |
R407C Refrigerant Gas Sensor | S301-IRF-R407C | |
R410A Refrigerant Gas Sensor | S301-IRF-R410A |