import re

regex = r"\b(?:Length|Width|Height|Weight) (?:\.\d{1,2}|\d{1,4}\.?\d{0,2}|\d{5}\.?\d?|\d{6}\.?) (?:in|oz|lbs|VAC|Hz|amps|H\.P\.|kg)(?!\S)"

test_str = ("Width 3.5 in\n"
	"Weight 10 kg\n"
	"Weight 10 H.P.")

print(re.findall(regex, test_str))