I have a Yokogawa 2426A Digital Insulation Tester for sale.
Bought about 8 months ago, functionally checked, and never used.
Specs:
1000V, 500V, & 250VDC
2000M Ohms max
ACV (300V Max) Measurement & Audible Continuity Check
Comparator Function
Liquid Crystal display (back-lit by EL)
Display is digital bar graph and numeric value
Fully Auto-Range and Measure Lock function
Battery Operated
includes probes and carrying case
Yokogawa has a picture of the meter located at:
http://www.yokogawa.co.jp/Measurement/Products/Bulletins-e/2426A/2426Ae.html
If you have any questions I can be reached via e-mail or phone (915)
944-7663, or I can fax the spec sheet included with the meter