Wanted: Cheap simple voltmeter, done or in a kit - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Insert BS here A place to discuss anything you want

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 08-18-2011, 11:52 AM   #1
Elite Member
Thread Starter
iTrader: (9)
 
TurboTim's Avatar
 
Join Date: Jun 2006
Location: Chesterfield, NJ
Posts: 6,485
Total Cats: 248
Default Wanted: Cheap simple voltmeter, done or in a kit

DIY Electronic Guru's:

I'm looking for a 'simple' DC voltmeter & display, say 8-20 VDC minimum, that draws it's power from what's it's measuring, i.e. only 2 wires to hook up. Needs to be small/rectangular to fit into a simple enclosure or ideally include an enclosure.

This one is exactly what I'm looking for except for the price and they are out of stock:
http://www.desmotimes.com/product112.htm



Other ones I've found googling "lcd voltmeter kit" all seem difficult to built into a simple, clean rectangular enclosure.

Ideas on where I can find, complete or in a kit, a voltmeter display similar to the above? Ideally from a USA source...

EDIT: Googling 'lcd panel voltmeter" gives this from digikey, looks to be the same but $46 still seems expensive.
http://parts.digikey.com/1/parts/675...dc-qm100v.html
EDIT2: manufacturer's site has 'em for $40. Hmm. Probably can't beat that.
http://www.martelmeters.com/products.php?cat=1

Last edited by TurboTim; 08-18-2011 at 12:03 PM.
TurboTim is offline   Reply With Quote
Old 08-18-2011, 12:39 PM   #3
Elite Member
Thread Starter
iTrader: (9)
 
TurboTim's Avatar
 
Join Date: Jun 2006
Location: Chesterfield, NJ
Posts: 6,485
Total Cats: 248
Default

Thanks Joe. I'm now determining whether I need the clean/finished look of the $40 meter or if I can panel mount a $6 ching-don meter. A coworker has an Go Motorboard electric scooter (think larger razor with electric motors) and wants a sorta gas-gauge. And a volt meter for my boat would be swell too.

Thanks again!
TurboTim is offline   Reply With Quote
Old 08-18-2011, 12:51 PM   #4
Boost Pope
iTrader: (8)
 
Joe Perez's Avatar
 
Join Date: Sep 2005
Location: Delicious and Moist.
Posts: 26,328
Total Cats: 1,926
Default

Quote:
Originally Posted by TurboTim View Post
A coworker has an Go Motorboard electric scooter (think larger razor with electric motors) and wants a sorta gas-gauge.
Ah. He wants this, then:



Cycle Analyst (standalone model)


It's much more useful than a simple voltmeter, and designed specifically for use as a fuel gauge on electric bikes and scooters. Instead of only monitoring voltage, it monitors current both into the battery (during charge) and out of the battery (during run) and can therefore tell you with great accuracy exactly how much useful energy remains in the battery in Ah, rather than simply telling you what the float voltage is.

It's pricey at $150, but really quite slick.


A similar product exists for the RC hobbyists which is much less expensive ($24), and performs many of the same functions, although the wiring is less convenient as the shunt is internal to the meter.



Turnigy Watt Meter and Power Analyzer
Joe Perez is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 59 12-15-2017 09:00 PM
WTB MP62 (Hotside) (NB2) Rick02R WTB 3 01-03-2016 08:18 PM
Noob to Miataturbo from MA JxPhan Meet and Greet 3 10-02-2015 03:17 AM
Walbro 255lph Fuel Pump $50 lsc224 Miata parts for sale/trade 2 10-01-2015 10:17 AM
WTB 90-97 miata low profile headlight kit DonPlatt WTB 0 09-25-2015 03:57 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 09:11 AM.