The moisture meter can quickly measure the moisture content of the grain. 1. WIDE RANGE OF APPLICATIONS: 850, 980, 1270, 1300, 1310, 1490, 1550, 1577, 1625, 1650 nm with SC, FC, ST adapters. This fiber optic power meter can meet most daily use, choose with confidence! 2. ABS MATERIAL: Made from premium ABS material, this optical power meter is resistant to wear and scratches, withstands various situations, and ensures a long lifespan. 3. LOW POWER CONSUMPTION: The optical power meter is characterized by low power consumption and can be used for 40 hours in continuous operation. The meter will turn off automatically after 10 minutes of inactivity to save electricity and prolong its service life. 4. 3 in 1: it is not only optical power meter, but also fiber optic tester and RJ45 tester, which meets different needs. 5. EASY TO CARRY: It has a small size and light weight, so you can easily carry the optical power meter for convenient use. Specification: Item Type: Fiber Optic Power Meter Material: ABS Power Supply: Requires AAA x 2 batteries (supplied without batteries) Power measurement range: -70 to and10dBm Probe Range: for InGaAs Wavelength range: 850 to 1650 nm Standard wavelengths (nm): 850, 980, 1270, 1300, 1310, 1490, 1550, 1577, 1625, 1650 Display Resolution: Line Display: 0,1% Logarithmic display: 0,01 dBm Operating temperature (℃): -10 - and 60 ℃ Storage temperature (℃): -25 - and 70 ℃ Automatic shutdown time (min): 10 minutes Continuous battery life: not less than 40 hours List of packages: 1 x Fiber Optic Power Meter 1 x Manual 1 x Lanyard Launch to use!