Geomaster/China supplies Surveying Equipment-Optical Compass, Pocket Compass, Height-measuring Compass,Mining Compass ... Optical Compass: DQL-12ZApplication:Mainly used for magnetic orientation, measurement of distance, level, ... ºBubble Accuracy20' ± 5'/2mmMin. Graduation1ºw. wooden Special TripodYes (Model DQL-JJ) and with Leather Carrying Bag LCB-1Packing Details: Instrument6pcs ...