Uniden SM81 Speaker Microphone [SM81] Marine Navigation & Instruments | Transducers *Using with ST70 requires purchase

*Using with ST70 requires purchase of ST70 Speed Pod and ST70 Depth Pod

Others find it more efficient to simply unbolt the old one and put the new one on

Data Displayed:

load current

Fuel Tank Level/Volume Remaining

Uniden SM81 Speaker Microphone [SM81] Marine Navigation & Instruments | Transducers *Using with ST70 requires purchaseSM81 Speaker Microphone Uniden's SM81 Marine VHF Speaker Microphone replaces Uniden's HHSPM. WARNING: This product can expose you to chemicals including LEAD which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings. ca. gov. Specifications: Type: Microphones Box Dimensions: 2"H x 4"W x 4"L WT: 0. 32 lbs Quick Guide (pdf)