Sargent - 281 - Powerglide Cast Iron Door Closer - Back Check Function - Standard Arm - Adjustable Size 1-6 - Plastic Cover - Dark Oxidized Satin Bronze - Fire Rated - Grade 1 POE Switch which also has 2 USB

which also has 2 USB ports

So whether you need to add a remote key

No Radio Door Thickness: Adjustable from 1-3/8" to 1-3/4" Cylinder: Schlage 'C' Keyway 6 Pin  Strike: 497 ANSI 1-1/4" Standard ADA: Meets Requirements of the Americans with Disabilities Act Certifications: A156

Use only slightly damp cloth

It reads 8-cuts on door from 3-10

Sargent - 281 - Powerglide Cast Iron Door Closer - Back Check Function - Standard Arm - Adjustable Size 1-6 - Plastic Cover - Dark Oxidized Satin Bronze - Fire Rated - Grade 1 POE Switch which also has 2 USBDesigned to meet the needs of facilities maintaining cast iron specifications, the Sargent 281 Series Powerglide Cast Iron Door Closer features a heavy duty one piece cast iron body for superior strength and wear resistance. With a full complement of arm types and front facing valves, the 281 series can be easily installed and maintainedfor interior and exterior applications. Features Exceeds 25 million cycles Non handed Dark Oxidized Satin Bronze