1st, this cryoscope being suitable when the glass curtain wall decoration profession, the electric power profession, the rope way transport every to involve the steel wire tensioning force survey uses. 2, the weight are light, may carry conveniently to the work high above the ground scene. 3, the operation are simple, a person may complete a survey in 30 seconds. 4, the instrument structure is simple, the stable property, the measuring accuracy is high, when was measured that in the rope specification and the resistance dynamometer stores up when the rope number specification is the same, in the fixed measuring range, measured that the strength precision may reach 2%. 5, was measured that rope's choice scope is wide, the easy to operate, in the resistance dynamometer may store up ten kind of different diameter steel wires the data, measured when strength only need select the corresponding rope number then. 6, use scope: Is suitable in the flexible stretch rope; The instrument precision is high: This instrument request when survey carries on the survey according to the demarcation rope number's specification, the measuring accuracy in 5%. 7, the S-- rope, in has flexible stretch rule rope practical The L-- strength, is stretched rope's tensity this product existing series 10, 20, 30T three kind of 8, may reflectoscope reflector's steel wire model and the measuring range. SL-10 SL-20 SL-30 rope number diameter demarcation measuring range (T) rope number diameter demarcation measuring range (T) rope number diameter demarcation measuring range (T) 1 φ10 5 1 φ≤16 10 1 φ≤22 15 2 φ12 5 2 φ18 10 2 φ24 15 3 φ14 10 3 φ20 15 3 φ26 20 4 φ16 10 4 φ22 15 4 φ28 20 5 φ18 10 5 φ24 20 5 φ30 30 6 φ20 10 6 φ26 20 6 φ32 30 7 φ22 10 7 φ28 20 7 φ34 30 solemnly declared: This product already obtained the national monopoly authorization, the patent number: The ZL03273775.0 imitation must investigate.