Pressure Vessels Selection Guide

Need help picking out a pressure vessel? Visit our new Pressure Vessels Selection Guide.

Customer Service

Contact us to place an order or inquire about any of our products and services.

Parr Instrument Company 211 Fifty Third Street
Moline, Illinois 61265-1770
(800) 872-7720 or
(309) 762-7716
Fax: (309) 762-9453

4838 Reactor Controller

4838 Ordering Guide

ABase Model
Part No. Description
4838EB Reactor Controller, 115V
4838EE Reactor Controller, 230V
BExpansion Modules
PDM Pressure Display Module
HTM High Temperature Cut Off Module
ETLM External Temperature Limit Module
CPC Communication
A1925E4 RS-485 to USB Converter with 30-ft Cable
A1925E6 RS-485 to USB Converter, isolated, 30-ft
A3504HC SpecView Software
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