The Abtus ABT4230 directly measures Versine, no calculation required.
Calibrated for use with 30,20 and 10m chord to directly give radius value. Also calibrated in mm – 0mm to 150mm.
Lightweight and can be used either way up.
String offset position to avoid formwork etc – 35mm to 80mm.
Fully non-conductive construction using GRP and Nylon 6.
