20m L Shape Little LiDAR Sensors RxD TxD

L model 5m Laser Module Shorter Range LiDAR

The L model laser range module is new serier of U81, but it's shorter 10mm than U81 sensor. With Ltype The same LiDAR system is accurate to +-1mm using Phase technology. And the short LiDAR module can measure range up to 5m. The short range laser module has been widely used in many smart home projects(Smart Rotating Wardrobe, Smart Electric Wardrobe Cloakroom to measure the wardrobe door,measure the length, width and height of the wardrobe etc.).

Some FAQs for L model sensor quotations: 
Question 1：Hi, I am looking for a short range distance sensor with Raspberry Pi control. What do you have a distance sensor like that?
Answer 1：  Our U81 can measure 5m and programmable, can be applied to Raspberry Pi.

Question 2：How much is your laser distance sensor and how do I order?
Answer 2：  Quotation is okay, how many units do you need for your first prototype? Please also tell us the shipping address and postal code.

Why L Type?
Smaller: 31*17*20mm
Easy to install: 90 degree shapes
L type Vs regular U81: Size shorter 10mm

Key parameters: 

Reliable, fast, precise 
Three interfaces optional: ttl, usb, rs232
Accuracy: +-1mm
Measuring time: 0.4s-4s

U81 laser working principle

The optical distance sensors achieve 5m short-range presence detection using a visible, focused laser beam spot. According to the latest version, customers can test the laser range components simply via using all available distance functions commond of the hexadecimal system. High resolution up to 1mm, the arduino distance measurement laser usually used to some samrt monitoring project. 

Detailed parameters

Range: 0.03 meter - 5 meter
Invisible measuring: 620nm ~ 690nm
Measuring accuracy: +-1 mm
Measuring frequency: Up to 3 Hz
Laser type: Class 2, red
Interface options: Serial/usb/rs232/rs485/bluetooth
Size: 31*20*17mm
Working temperature: 0 ~ 40 degree
Storage temperature: -25 ~ 60 degree

Notes:

1. Under bad measure condition, like environment with strong light or the diffuse reflectance of measuring point over-high or low, the accuracy would have bigger amount of error: ±1 mm+40PPM.

2. Under strong light or bad diffuse reflectance of target, please use a reflector.
3. Voltage can be changed by power converter LDO
4. Frequency would be affected by environment.
5. Operating temperature -10 ℃~50 ℃ can be customized.
6. Analog can be customized.

More Detailed Pictures:

L Model Distance Sensor Front vs normal 41*17*7mm

5m L Model Distance Sensor Detailed Size

Diagram for the Laser Distance sensor:

About us

Chengdu JRT Meter Technology Co., Ltd founded at 2004, is a manufacturer, who is specialized in R&D, processing and selling industrial laser distance sensors for 17 years. We can do OEM designs and can make functions as customers required because we have a strong R&D team.

Feedbacks from JRT customers: 
Thank you, 
U81x works fine! Thanks again for all 

Chengdu JRT Main Ranging Modules: Industrail Laser Distance Sensors, Laser Distance Meter Modules, Tof LiDAR Sensors.