Graco 25V471 Pulse Fluid Defender Tank Level Alarm

Audible Overfill Alarm
Product Type:
High or Low Level Tank Alarm w/ Remote Sensor
Mount Type:
Wall Mount
Up to 1000 ft.
Tank Capacity:
Up to 5 Tanks
7.46 LBS
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Visibility and process streamlining is important for fluid management. The Pulse® Fluid Defender® tank monitoring system when paired with your Pulse Fluid Management system, gives you unprecedented insights, analysis and control of your bulk fluid tanks, helping you automate ordering and save time. The Fluid Defender is for monitoring lubrication fluid tank levels in above ground stationary tanks and the regulation of air-powered equipment connected to a tank using air control solenoid valves. Receive valuable tank data from the Pulse Pro software to further improve tracking and management of bulk fluids. Set email alerts to increase visibility to alarms during off-business hours.


  • Not for use with tanks containing gasoline or any other Class I NFPA 30 flammable fluid
  • Not for use with tanks without required overfill containment protection, not a replacement for overfill containment.
  • For professional use only
  • Not approved for use in explosive atmospheres or hazardous locations


  • Uses: high level alarm and shut-off, remote fill alarm, low level shut off, low level alarm and remote fill shut off
  • Reduce risk of fluid spills and EPA compliance
  • Supports remote tank and remote fill locations
  • Siren, beacon and remote alarm lights
  • Monitor up to 5 tanks and up to 5 air control solenoid valves
  • Allows for up to 1000 feet between monitor and tanks
  • Single power source for complete system simplifies installation
  • IP65 compliant for indoor or outdoor installation
  • Alerts in a siren, beacon and remote alarms
  • Emails alert notifications can notify oil jobber to schedule tank refill
  • Safe to use with motor and waste oil, ATF, A-F, diesel and windshield wash fluid


  • Fluid control box
  • For use with Fluid Defender
  • 5 Channels
  • Pulse compatible
  • Temperature range: 14°F to 122 °F ( -10°C to 50°C)
  • Storage temperature: -40°F to 185°F (-40° C to 85° C)
  • Operating voltage: 120V AC- 60 Hz
  • Nema 5 -15 plug
  • Siren Sound at 2 ft.: 103 dBA
  • RF Frequency: 2400 to 2483.5 MHz
  • Maximum RF transmit power: 6.3 mW (8 dBm)
  • Overall height: 11.3 in.
  • Overall width: 10.3 in.
  • Approvals: NEMA Type 3R


Manual (PDF Download)

Product Brochure (PDF Download)