Start by changing the battery on the ohm meter you have. most cheapo meters only have 200ohm range as the lowest setting. Mine is no different, the 200 ohm range will be ok for 3 number slots and should have at least one decimal point. If you read .7 or .8 consider this should be fine as you are still within 10% range. When you short the leads together you will get your base reading that can be deducted from the overall reading for your true numbers. Sometimes mine wants to add 1.2 ohm, and sometimes if I am patient I can get as low as .3 or .4 ohm base readings, but it never bothered me much as long as I check this base reading before conducting any tests and sub this from the final results. You should be fine with the meter you have and fresh batteries, maybe even replace the lead connectors if you really feel necessary. $10 could get you a cheapo meter from china on ebay, but you wont be any more satisfied with that rather than what you have. I say its money and time out the window... unless you actually fried the meter from improper use.