LiftMaster 850LM Security+2.0 Three Channel Gate Or Commercial Opener Radio Receiver With F-Connector Antenna, 9 - 30 Volts AC/DC Can be used as a single channel receiver or three single channel receiver or a open, stop close receiver.
The LiftMaster 850LM radio receiver is compatible with the security+2.0 remotes with rolling code as well as the digital code switch remotes. It can be used as a single channel gate or commercial door receiver or up to three single channel gate or door receiver or a three function open, stop close receiver. This 850LM receiver used the tri-frequency Security+2.0 system for more range than the older single channel receivers. Each channel of the receiver is independently programmed and channel 1 can have up to 50 remotes, channel 2 and 3 can have up to 20 remotes each and each channel can have up to 2 keypads. If the Digital code switch remotes are used then as long as the remotes are set to the same code the number of remotes is unlimited. This receiver has a wide range of 9 to 30 volts at 50mA for its power supply making it very flexible. Channels 1 and 2 provide a normally open contact closure and channel 3 has a form C for normally open and normally closed contact. The optional 86LM remote antenna kit can be used to locate the antenna outside of the opener and/or higher for maximum range. An optional power adapter LiftMaster 85LM (sold separately) can be used if the receivers required operating power is not readily available.
Note: Will not work with remotes that operate on 390 or 315Mhz.
The LiftMaster 850LM receiver is compatible with the following remotes:
LiftMaster: 811LM, 813LM, 891LM, 893LM, 892LT, 894LT, 890MAX, 893MAX, 895MAX
Compatible Keypads: 877LM, 377MAX
Activates up to three doors or gate openers or one opener that uses the open, stop, close function
Accepts up to 50 Security+2.0 remotes on channel 1 and up to 20 for channel 2 and channel 3 or unlimited number of digital code switch remotes for all channels if same code is used.
Each channel is independently programmed and has indicator light
External antenna with F-connector
Optional remote antenna kit 86LM can be used
Isolated dry contact output for each channel
Optional plug-in AC power adaptor LiftMaster 85LM (sold separately) connects to side located plug-in power connector
One-Year manufactures warranty
Power: 9 - 30 volts AC or DC
Frequency: Narrow band tri-frequency 310, 315 and 390Mhz
Output: Contacts rated at 5 amp @ 28 volts ac/dc dry contact per channel with channel 3 providing N/O and N/C contact
Dimensions: 4.875 x 4.25 x 1.125 inches
If you are not positive that this is the correct item for you, please email us. We are more that happy to assist you in determining the correct item for your application. If you need to contact us for assistance please include the Make and Model number of the garage door opener, radio receiver or transmitter. The more information you include for us, the easier it is for us to assist you in determining the correct item. We would rather have you contact us than end up with the wrong item and have to return it.