It is used to detect optical fiber breakpoints, and is used in the construction and maintenance of integrated wiring, production and research of optical c-omponents and other optical fiber engineering.

Features:
Lightweight and portable for easy carrying and comfortable hold.
Longer penetration distance, stable performances and long service time.
3-gears brigtness adjustable, and there are power signal lights, pay attention to the power at any time.
With LED light convenient for dark environment operation.
2.5mm universal pen heads, detachable, easy to replace the core.

Specifications:
Type: B3S05, B3S15, B3S20, B3S30 (optional)
Output power:
B3S05: 5mW
B3S15: 15mW
B3S20: 20mW
B3S30: 30mW
Working time:
B3S05: 10h
B3S15: 3.5h
B3S20: 5h
B3S30: 5h
Interface: 2.5mm
Output wavelength: 650nm
batt-ery:
B3S05: 2 * AAA batt-ery, 1.5V, 250mAh
B3S15: 5V, 900mAh
B3S20: 5V, 900mAh
B3S30: 5V, 900mAh
Item size: 125 * 35 * 17mm / 4.9 * 1.4 * 0.7in
Item weight: 56g / 2.0ounce
Package size: 150 * 60 * 30mm / 5.9 * 2.4 * 1.2in
Package weight: 83g / 2.9ounce

Packing List:
1 * Fiber Optic Tester