Programmable Digital AC Single Phase Power Watt Meter (Blue LED w/ Control & 20mA)

Price: $75.00
3 units available
- +

Key Features of the 404PWA AC Power Watt Meter

  • Alarm control for over/under power
  • Programmable and expandable with ext'l current transformer (CT)
  • Low power consumption



  • Operating voltage: AC 85-260V or DC 85-260V
  • Dual Alarm output (relay) J1,J2
  • Default AC500V,5A (no transformer need)
  • Control Type: Relays
  • Relay: 3A@125VAC, 3A@14V DC
  • 0-20mA analog data output
  • Size: 96mm x48mm x62mm
  • Mount Hole: 92mm x44mm x62mm


Average rating 10 out of 10 ( based on 1 review )

Great product at a great price!

Review by Roger A. on 5/22/2011

I purchased an HB404 AC Wattmeter, specifically the 404PWA, earlier this year and discovered a great number of errors on the datasheet (corrections will be published in the product forum at Nonetheless, once you figure them out and get it properly connected and programmed, it works fine. The 20ma output seems accurate as well. The relay outputs are confusing to set, but then work fine too. If only the AC version also included the ability to display voltage and current as well, like the DC models do!

Write a Review