Fat caliper problem

ok so i bought a digital fat caliper and its annoying the crap out of me. it will give me almost completely different readings unless i pinch as hard as i can which ur not supposed to do. so far ive gotten readings like 13% 4% and 1.6%. does any1 know how i can get accurate reading?

Duke of the Emancipation Detoxification

the basic plastic manual bodyfat caliper is going to be $5-15, and should have a little tab looking thing that will make a little clicking sound when you've applied enough pressure. Its important to measure at the exact spot that meant. if its chest it has to be be exactly halfway between your nipple and armpit on the outside of your pec, abdominal exactly 1" to the right of your bellybutton, thigh halfway between your hip and knee. Not sure how it is with digital calipers, but from experience I've seen that even taking the measurements a little off, resulting in a few millimeters difference can add up, espescially if you are a little off with every measurement. Also probably applying to every caliper, get the fat layer pinched away from the muscle as much as possible. Also measure very slightly closer inwards to where your index and thumb meet. Hopefully this will be helpfull even though the technology is a little different...myself I don't mind consulting a table and doing the math.

best lifts

Squat 295x6
Bench 175x3
Deadlift 285x1
Leg Press 800+ for reps

7 and 3/4'' wrist at 5'11''