The body is small, the back of the body is equipped with portable buckle, easy to carry and not lost
The stripes on both sides of the fuselage are anti-skid humanized design
Equipped with strong flashlight, so that you can work easily in dim environment
It can be charged with 3.7V 1050mAh lithium battery
Battery power indicator shows, laser indicator shows
Red light has a wavelength of 650±20nm
2.5mm Universal Connector
Automatic shutdown
CE certification
IP54 Protection level
| Product model | UT691-01 | UT691-10 | UT691-20 |
| Red wavelength | 650nm±20nm | 650nm±20nm | 650nm±20nm |
| Laser output power | ＜1mW | ≥10mW | ≥20mW |
| The optical fiber length can be measured | 1-3 km | 8-10 km | 12-15 km |
| Optical fiber adapter | 2.5mm Universal Connector | 2.5mm Universal Connector | 2.5mm Universal Connector |
| Battery type | 3.7V 1050mA polymer Lithium Battery | 3.7V 1050mA polymer Lithium Battery | 3.7V 1050mA polymer Lithium Battery |
| Battery life | Continuous use > Ten hours | Continuous use > 7 hours | Continuous use > 5.5 hours |
| Electric quantity indicator | Four blue leds indicate battery status | ||
| Green indicator light | 指示Automatic shutdown模式状态 (Automatic shutdown时间到后,白光LED慢闪3次) | ||
| Red indicator light | Indicates the working state of the laser (steady on, blinking, off) | ||
| Charging current | DC 5V,<1A | ||
| Automatic shutdown | Automatic shutdown手动选择,Automatic shutdown时间：15分钟 | ||
| Authentication | CE,IP54, RoHS | ||
| Operating temperature | 0℃~40℃ < 75percentRH (non-condensing) | ||
| Storage temperature and humidity | -10℃~50℃ | ||
| Working altitude | <2000m | ||
| Fuselage color | Red and gray | ||
| Fuselage size | 130*38*25mm | ||
| Standard parts | X 1 user manual; USB Charging cable X 1 | ||
