Instruments & Controls
9900: Output Accessory
The 4 to 20 mA Output Module adds a second 4 to 20 mA Output to the 9900 Transmitter (Generation III and later). Each of the outputs can be used to output the primary and/or secondary measurement.
9900: Relay Accessory
Relay Module. This module adds two programmable dry-contact relays to the standard Open Collector output in the base unit.
