The Agilent-34405A is a scaled down derivative of the original HP-34401A 6.5 digits bench top or table top multimeter. HP at Loveland, Colorado designed this HP-34401A bench top, before Agilent was formed, when HP have no business interest in test and measurement electronics. They wanted to specialize in consumer computers and Compaq products and commercial blade servers computers and printers. Agilent is the only company left that is original HP product, an audio frequency range signal generator in a bread box like enclosure, the HP-model 200CD, 5 Hz to 600 kHz (Kc/s). This high frequency audio signal generator remained in production from 1952 to 1985, 33 years in production and people still ordered them. I first saw one at my first science work place, a microwave spectrometry electron spin resonance work shop, a matter exploring work shop. I never asked why my professor has one on her shelf among other test and measurement instruments and I have my own instruments kept there at the time, too. I have found a large instrument rack and enclosure and installed it there. I get to learn my calculus, experienced how to build an exploring workshop, and received my first large pay check, never repeated again after wards. I can never achieve the income of a research assistance, after graduation.
http://www.hpmemory.org/wa_pages/wall_a_page_01.htm http://www.hpmemory.org/wb_pages/wall_b_page_10c.htmThe HP code name for the development of the HP-34401A is Alf. It was designed and made in Loveland, Colorado, US.A. The Agilent 34405A is a less by one digit than the original 34401A. The Agilent 34405A is a 5.5 digits. It costs the same as a second hand HP-34401A from E Bay around $750.00 USD. You will get one less digit, thus your multimeter's accuracy suffers at +/- 0.03% and you will gain a capacitance meter function that is absent in the original HP-34401A. There were never any battery options for these multimeters. The classic Fluke 8012A has a battery option and is enjoyed by another member of this blog, he likes his. The vacuum fluorescent display uses too much electricity power to be battery powered. The readings per second is less with the Agilent 34405A at 70 readings per second, not the HP-34401A's 1000 readings per second. I enjoy the HP-34401A very much. If you could purchase any of these, you will not be disappointed for a table top, indoor use multimeter to explore, repair, or just enjoy hobby to test your creations and curiosities. Agilent in recent years made several derivatives from the original Alf project 34401A to match the needs of various customers. It competes very well with the dual vacuum fluorescent display Fluke 45. The Fluke 45 has a battery option. The Fluke 45 is discontinued. Fluke felt the capabilities for 4.5 digits and 5.5 digits are done better with a hand held multimeter.
http://www.fluke.com/fluke/usen/bench-instruments/bench-multimeters/fluke-45.htm?PID=56082There are no plans for Agilent to discontinued their rugged, water resistant Agilent U1272A. The U1272A is more rugged than the U1253B in organoLED version. A member on this blog has a great review and a taken the covers off view of the inside of the U1252B a basic read able in bright sun light LCD version of the U1253B on this blog. Dave Jones has done a review on the older model, which is still available, the organoLED U1253A in blue color, instead of orange color. These are all 7 readings per second.
None of them are being discontinued at the present. You might see discounts from over stocked, promotion at your location, or just a sluggish economy global as the U.S.A. is in the middle of a mild recession, a second one.
http://www.home.agilent.com/agilent/product.jspx?nid=-536902435.0.00&lc=eng&cc=USConclusion, nothing is happening, just over stocked multimeters or slow economy for electronic test and measurement stuff.