Platform Scales are often available at farm sales. Sitting a hive on one permently gives a fair picture of honey flows, honey usage and in general are a fun thing to have around. Someone suggested a old pair of bath room scales and with a bottom board and a pair of contrete blocks can be calibrated fairly accurately. I use a 50 pound fish scale and a strap iron L shaped bracket to fit the hive and the weight is approx 2.2 times the reading when the front of the hive clears the ground. Maybe not the most accurate in the world but it is basic physics. I admit I keep good records amd use a tape recorder to record what is going on in my yards but in the long run it is time well spent Regards Beemanaa@aol com (Andy Anderson)