Trac Fishing Barometer
- Track changes in barometric pressure
- Multi-colored key and indicator needle
- "Interprets" fishing conditions
Increase your fishing success by tracking changes in barometric pressure with the Fishing Barometer from Trac. Barometric pressure has a dramatic impact on fish feeding habits, and this very portable 3-1/4'' Fishing Barometer features a multi-colored key and indicator needle which indicates whether fishing conditions are excellent, good or poor.
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how i need to rotate the pointer to calibrate with 1.020 mb pressure ?