Reliable. Compact. Hi-Definition Ready.

  • 4 – Analog High Definition NTSC Analog channels & IP channel
  • H.264 video compression
  • Fanless design & integrated lock box
  • Dual streaming
  • Dual SD card slots
  • Wireless ready – WiFi & Cellular
  • Analog High Definition Channels support up to 1080p resolution


Gatekeeper’s Y35 high definition digital recorders combined with G4 Vision software provides school bus operators with an on-command connection centralizing communications for system health check, driver behaviour analysis, video management, live streaming video, GPS, routing and mapping, student tracking and other third-party software applications.

The Gatekeeper Y35 is a 5 channel (4 AHD / NTSC analog, 1 IP) video/audio recorder.  The four analog channels can be configured in pairs as either AHD or NTSC channels.  When configured for four NTSC analog channels, each channel will record a maximum of 30 FPS simultaneously with independently selectable resolutions and 9 quality levels.   When two channels are configured for AHD, the DVR will support 15 FPS each of the 2 AHD channels and up to 30 FPS on the two NTSC analog channels.  Analog High Definition camera utilizes Gatekeepers standard analog cables.  This allows vehicles with existing analog compatible cabling to be easily updated to high definition cameras.

The Y35 AHD DVR supports the AHD-M video standard.  When combined with Gatekeeper’s S31AHD camera, video resolution is increased from standard D1 (720×480) to 720p (1280×720) high definition resolution.  The Y35 AHD DVR also supports the 960H (928×480) video standard.

The Y35 AHD has dual SD card slots and can accept up to 256GB SD card in each slot (512GB total).

Superb Reliability

The Y35 AHD incorporates many features that dramatically increase the reliability of the DVR and the availability of recorded video. A custom file system is used to record data to the hard drive. This file system has been designed so that video can be recovered under most scenarios.

The Y35 has a high capacity power supply. The power supply stores energy so that if the DVR loses power (when the engine is started or other high current draw electrical devices are turned on, such as air conditioners or hydraulic lifts), there is enough energy in the power supply to continue to power the internal circuits of the DVR for a short period of time.  For example, when power to the DVR is lost the DVR closes the video files correctly and then power down into a safe low power state.  This makes the DVR virtually immune to the notorious unreliable power found in vehicles.

The Y35 has latched door that prevents users from inadvertently removing the Caddy (hard drive carrier) befor powering down the DVR. The key must first be turned to the unlock position before the door can be unlatched and opened and the Caddy can be removed. When the door is unlatched and opened, the DVR shuts down, and it is safe to remove the Caddy. After the Caddy is reinserted, and the door is closed and latched, the DVR reboots and is once again ready to record.

Full Complement of Peripherals Available

The following optional peripherals are available:

• Driver Alert Button with Status LEDs
• Rear cable cover
• Interactive Control Display
• External G Sensor
• 4 Port Hub

Built Rugged

The Y35  DVR passes MIL SPEC 810F (Trucks on Streets) for shock and vibration. In addition, Gatekeeper has developed and subjected the Gatekeeper DVRs to custom shock and vibration profiles. These profiles were derived by placing sensors on vehicles, and recorded the shock and vibration that actual DVRs were subjected to in real world conditions.

Download of Video to a USB Drive

The Y35 allows users to download video and/or video of marked events to a USB memory stick that can be inserted in the front of the DVR.

WiFi and Auto Wake Ready

The Y35 is WiFi Ready. Gatekeeper’s WiFi system will provide radio coverage in a typical vehicle yard. Utilizing WiFi 802.11n at 5GHz Gatekeeper offers both a rugged industrial rated access point and a WiFi radio for the vehicle. Through the use of Auto Wake, a user can turn on the DVR and WiFi radio in the vehicle so that video can be accessed.

Dual Streaming and Cellular Ready

The Y35 is dual streaming. This means a high quality full resolution image can be stored on the SD card while a lower resolution image can be streamed over the optional cellular connection.

Public Transport
  • Violence
  • Bullying
  • Vandalism
  • Potential Terrorist Threats
  • Stop Arm Violations
Law Enforcement
  • Violence
  • Bullying
  • Vandalism
  • Potential Terrorist Threats
  • Stop Arm Violations
Transport Services
  • Hazardous Materials
  • Road Rage
  • Driver Behavior
  • False Insurance Claims
  • Asset Protection


 System Specifications
     Video Channels (Analog)

Video Channels IP

4 channels (AHD or NTSC Analog) configured in pairs.

1 IP channel

     Output  1 channel
     Video Compression  H.264
     Video Quality  User configurable  (1 to 8)
     Resolution IP: Camera Dependent – up to 1080p

AHD: 720p (1280X720), WD1 (928X480), WHD1 (928X240), WCIF (464X240),

D1 (704×480), HD1 (704×240), CIF (352×240)

NTSC: WD1 (928X480), WHD1 (928X240), WCIF (464X240), D1 (704×480), HD1 (704×240), CIF (352×240)

PAL: WD1 (928×576), WHD1 (928×288), WCIF (464×288)

     Video Resource MDVR has resources to support up to 480 CIF frames per second where… 1 FPS @ 720p = 8.00 CIF FPS resource

1 FPS @ WD1 = 4.53 CIF FPS resource

1 FPS @ D1 = 4.00 CIF FPS resource

1 FPS @ HD1 = 2.30 CIF FPS resource

     On Screen Display  User configurable
     Video Streams  Dual Streaming
     Audio Channels  4 channels analog and 1 via IP
 Output  1 channel
     Audio Compression  ADPCM
     Dual SD Storage  SD Card: 32GB, 64GB, 128GB & 256GB
     Recording trigger  Recording Trigger Schedule, alarms, sensor triggers (includes ignition)
     Pre recording  0 to 60 min
     Post recording  Max 30 min
     File Size  15 min of video
     DVR Video Playback  1 channel local. Up to 4 channels using G4 Viewer Plus
     Search Method  Date/Time, channel file type
     Backup Mode  USB
     Ethernet  Ethernet RJ 45 port (10/100M)
     Cellular  Optional external 4G cellular module
     WIFI  Optional 802.11Nac 5GHz
     GPS  GPS Location, Speed, Time Sync
     Input  Input 8 to 36v
     Output  5V@1A, 12V@1A
     Consumption  29W recording
     Standby Current  <1 mA @ 12.6V
     Dimensions  6.5” x 6.25” x 2.25” (165 mm x 159 mm x 57 mm) without cable cover

9.0” x 6.25” x 2.25” (230 mm x 159 mm x 57 mm) with cable cover (optional)

     Weight  2.4 lbs. (1.09 kg)
     Operating Temperature  -40°F to 158°F (-40°C to +70°C)
     Humidity  Below 90% non-condensing

Y35 Product Sheet