Orion Research

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ORION'S "no lemon" meters will suit you to a T- shirt.

Model 501: New, low-cost digital pH meter readable to 0.01 pH. Features ATC and digital reading of temperature.

Model 701A: Research-grade digital pH/mV meter with 0.001 pH resolution. Features ATC and digital output for interfacing to ORION printer. Comes with swing arm electrode holder.

Model 407A: Versatile, topof-the-line analog meter for pH and specific ion work. Also available in batterypowered field version, with carrying case.

901 Microprocessor Analyzer: Unique "thinking" meter offers unmatched simplicity of opera­ tion, makes electrode analysis faster, easier. Pushbutton stan­ dardization and blank correction. No calibration curves to draw.

Model 201: A low-cost, hand-held digital that reads to 0.05 pH. Comes with car­ rying case and line adaptor to permit laboratory use.

The famous ORION "no lemon" T-shirt, yours with a demo of any ORION "no lemon" meter.

Ask for a demonstration of any Ο RIO and receive a "no lemon" T-shirt, free! Take your pick of the " n o l e m o n " crop! These are just a few of ORION's pH and specific ion meters, priced from as little as $220. They're so reliable, each one comes with our famous " n o l e m o n " guarantee: if your meter quits for any reason other than abuse within one year of purchase, we'll replace it with a brand new one. Immediately, and without charge. That's why we say, "ORION eats l e m o n s ! " Mail the coupon today for your demo and free T-shirt.

Please call me for a demo of (circle): 501 901 407A 201 T-shirt size:

Dlarge

701A Dextra-large

Name Title Organization

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ORION RESEARCH Orion* "No lemon"*

Dmedium

380 Putnam Ave., Cambridge, MA 02139 CIRCLE 156 O N READER SERVICE CARD

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