Easy to Use: The PON light source is suitable for various testing environments, displaying absolute power in dBm and relative dB. Protective Sleeve: Features a soft rubber protective sleeve for drop and wear resistance. Handheld Optical Power Meter: High precision and stable performance. PON Light Source: Operates at 1310/1550nm, with a conventional wavelength range of 1310-1550nm. Specified Wavelength Operation: Designed to function within a specified index across the wavelength range. Item Type: Light Source Optical Power Meter Conventional Wavelength: 1310-1550nm PON Light Source: 1310 / 1550nm Probe Range: InGaAs Output Optical Power: -7 / -7 Connector: SC Modulation: CW / 270 / 1K / 2K Operating Temperature: -10 ~ 60 ℃ Storage Temperature: -25 ~ 70 ℃ Auto Power Off Time: 10 min Power Supply: 3 x AA batteries (batteries not included) 1 x Optical Power Meter 1 x Adapter 1 x Shoulder Strap Accessory 1 x Cloth Bag