Check the listing for details. Topcon RD-100W Wireless Magnetic Mount Remote Laser Receiver Display. Condition: Used. Listed at 700.00 USD. RD-100W - Used. I have 3 available. This listing is for 1 each. They turn on and appear to work as expected. One had a bit of corrosion on 2 of the terminals. It still worked with the corrosion. I did wipe it clean as seen in the last 2 photos. Topcon boom mount rotary laser receiver remote works through Bluetooth with Topcon LS-B10W and LS-B110W receivers. Batteries included. PN 312671121. MSRP: $950. Made in Japan. Features: Wirelesscommunication: 20m Connectsto theLS-B10WorLS-B110Wlaser receiver Display: LED and LCD Built-inmagnetic mounts Autoshut-off function ABShousing Batterylife up to 40 hrs Built-inspeaker Uses 4 AA Batteries (Not Included) Manufacturers Description The Topcon RD-100W Wireless Remote Display is a time-saving device that enables the operator to adjust the On Grade position without leaving the cab of the construction vehicle. This remote display puts the laser receiver's information on the cab of the machine. This remote display comes with an LED and illuminated LCD display that indicates the beam position and allows accurate reading of measurements regardless of lighting conditions. Also, it features built-in magnetic mounts for easy set-up. Plus, it automatically shuts off after 30 minutes of inactivity. With an ABS housing, the Topcon RD-100W is designed to endure harsh conditions. It is dustproof and water resistant with its IP66 rating. Also, it uses four C-size alkaline batteries which last up to 40 hours. As an extra feature, it includes a built-in speaker that produces a sound the wireless communication starts or fails. Features: Wirelesscommunication: 20m Display: LED and LCD Built-inmagnetic mounts Autoshut-off function ABShousing Batterylife up to 40 hrs Built-inspeaker