clinoretee,gradient meter, high accuracy, anti-jamming, two axis, used in pylon. Technical datas: ... range:+/-30 degree (two axis) Resolution:0.001 degree Accuracy:0.05 degree(@25) Zero temperature drift:+/-0.3 degree ... function, Good shock survialApplicationsAngle measuring, leveling adjustment, zero setting. Security control, monitoring, alarm system, Angular measurement of arm, dam, construction, ...