Part# 10-24505
MFR Model# 450


Davtron M450 Features:

  • Minimum panel space
  • Lightweight
  • Automatic dimming
  • LED display
  • Operates from 14 to 28 volts
  • Low Voltage Alarm
  • Engraved Faceplate

Download M450 Brochure

Davtron FAA PMA # PQ1062NM
California Prop 65 Warning Symbol

WARNING: The product may contain and/or expose you to a chemical(s) or substance(s) which are known to the State of California to cause cancer and/or birth defects or other reproductive harm.


  • Davtron Inc. recommends that you purchase our products through your local avionics shop and have them do your installation. They know how to handle all the log book entries you need for FAA approval.
  • FAA/PMA Approval
  • Beech 35, A35, B35, C35, D35, E35, F35, G35, H35, J35, K35, M35, N35, 35-33, 35-33A, with STC SA4381WP or SA4193 installed
  • Download FAA 337 Form


  • Range: 8 volts to 32 volts
  • Input current: 150 M.A.
  • Resolution: .1 volt
  • Weight: 3 oz.
  • Complete w/cable & connector
  • Operating temp: -20°C to +60°C
  • Accuracy: ±1% of full scale
  • Warranty: one year
  • Unit default alarm set to flash 11v or below
  • R3 & R4 located on back board
  • Alarm off/1.5 ohm resistor on R3
  • Alarm 20v or less/1.5 ohm resistor


Excellent voltmeter! Does its thing great!

Leonard A
September 14, 2018


Please note, Pilotshop's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Pilotshop assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Is the Davtron voltmeter model 450 FAA/PMA approved?

Yes, PMA# PQ1062NM approved.