Features: 1Stable performance accurate measurement distance. 2This module is fully compatible with GH-311 anti-theft module. 3This module can provide the ranging program: C51 PIC18F877 yilong single chip microcomputer 3 kinds of MCU testing reference. 4Can provide a full range of procedures: C51 PIC18F877 ultrasonic LCD1602 display ultrasonic LCD12864 display digital tube display serial display ranging reference procedures. 5Made of premium ABS material which is durable in use. The out pin of this module is used as a switching output when anti-theft module and without the feet when ranging modules. Specification: Features:1. Stable performance accurate measurement distance.2. This module is fully compatible with GH-311 anti-theft module.3. This module can provide the ranging program: C51 PIC18F877 yilong single chip microcomputer 3 kinds of MCUtesting reference.4. Can provide a full range of procedures: C51 PIC18F877 ultrasonic LCD1602 display ultrasonic LCD12864 displaydigital tube display serial display ranging reference procedures.5. Made of premium ABS material which is durable in use. The out pin of this module is used as a switching outputwhen anti-theft module and without the feet when ranging modules.Specification:Condition:100% Brand NewMaterial: ABSColor: As Pictures ShownSize: Approx.4.5 x 2 x 1.5cm/1.8 x 0.8 x 0.6inWeight: Approx.9g Package list:1 x Ultrasonic Measuring Sensor