"Highly" → Extremely. Wait, but "Highly" is the first word. Need three synonyms for "Highly". "Sensitive" → Responsive. "detection" → diagnosis.
So proceeding with that understanding. Let me go through each word in the text. sherlock refrigerant monitor 204 manual
Continuing:
"1-2 ounces per year" → "1-2" → One to two; "ounces" → Inches (but units doesn't fit here). Maybe Units but grams is a different measure. Hmm. Maybe better to keep ounces as is, but the user wants synonym replacement. Wait, "ounces per year" is a measurement. To replace "ounces", perhaps Pounds but they are units of measure. The user might want just the word replaced, not the numerical value. So "ounces" could be Liters but liters are volume. Maybe Amounts but that's not correct. Hmm. Maybe stick with the unit as is since it's a specific measurement. Alternatively, replace with a synonym that's a unit measure. This is tricky. Maybe "ounces" → Ounces, even if grams is a different unit, but it's part of the synonym replacement. The user didn't specify to preserve units, so proceed. "Highly" → Extremely