The BRA-L Bowen Ratio Arm includes air intakes, filters, thermocouple (TC) connectors, and standard lengths of TC wire (pn 10956) and air intake tubing [(pn 4192). Tubing and thermocouple lengths are user-specified. It is intended for applications where a customized mounting configuration is required. Arms mount to a tripod mast or to a user-supplied 1” NPS pipe.
The "-L" on a product model indicates that the cable length is specified at the time of order.