{"id":8365,"date":"2022-05-26T04:52:51","date_gmt":"2022-05-25T20:52:51","guid":{"rendered":"https:\/\/ancor.biz\/?post_type=product&#038;p=8365"},"modified":"2025-08-18T12:43:34","modified_gmt":"2025-08-18T04:43:34","slug":"dwyer-series-668b-d-compact-differential-pressure-transmitters","status":"publish","type":"product","link":"https:\/\/ancor.biz\/index.php\/product\/dwyer-series-668b-d-compact-differential-pressure-transmitters\/","title":{"rendered":"DWYER Series 668B\/D Differential Pressure Transmitters"},"content":{"rendered":"<h1>Series 668B\/D Compact Differential Pressure Transmitters<\/h1>\n<h2 class=\"tagline\">Ranges from 0.1 to 100 in w.c., Overpressure Protection to 15 psig, \u00b10.8% Accuracy<\/h2>\n<p>&nbsp;<\/p>\n<p>Our low cost\u00a0<a href=\"https:\/\/ancor.biz\/index.php\/product-category\/brand\/dwyer-instruments-brand\/\">DWYER<\/a> Series 668B\/D Differential Pressure Transmitters are capable of sensing differential gage pressure with \u00b10.8% FS accuracy, and converts this pressure difference to a proportional high level analog output for both unidirectional and bi-directional pressure ranges. These DWYER <a href=\"https:\/\/intl.dwyer-inst.com\/Product\/Pressure\/DifferentialPressure\/Transmitters\/Series668B-D?Query=668B\/D\">Series 668B\/D<\/a> Differential Pressure Transmitters can withstand up to 15 psig overpressure with no damage to the unit. The compact, lightweight design makes installation simple and easy. Units are protected against incorrect wiring, and include a protective terminal cover.<\/p>\n<p>&nbsp;<\/p>\n<h2 class=\"sub_heading\">Product Applications<\/h2>\n<ul class=\"list-details inline product_feature\">\n<li>HVAC and VAV control<\/li>\n<li>Clean rooms and isolation rooms<\/li>\n<li>Duct static pressure measurement<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<section id=\"features\" class=\"ui-tabs-panel ui-widget-content ui-corner-bottom\" role=\"tabpanel\" aria-labelledby=\"ui-id-4\" aria-expanded=\"true\" aria-hidden=\"false\">\n<h1 class=\"tab-heading\">Features<\/h1>\n<ul>\n<li>Protection from 15 psi overpressure &amp; incorrect wiring<\/li>\n<li>High accuracy at low pressure ranges<\/li>\n<li>Two package selections allows easy device mounting to best fit application pressure connections<\/li>\n<\/ul>\n<\/section>\n<p>&nbsp;<\/p>\n<section id=\"specs\" class=\"ui-tabs-panel ui-widget-content ui-corner-bottom\" role=\"tabpanel\" aria-labelledby=\"ui-id-3\" aria-expanded=\"true\" aria-hidden=\"false\">\n<h1 class=\"tab-heading\">Specifications<\/h1>\n<ul class=\"list-specs lined\">\n<li>Service: Air and non-conductive gases.<\/li>\n<li class=\"title\">Accuracy: \u00b10.8% FS.<\/li>\n<li class=\"title\">Temperature Limits: Operating: 0 to 170\u00b0F (-18 to 77\u00b0C); Storage: -40 to 185\u00b0F (-40 to 85\u00b0C).<\/li>\n<li class=\"title\">Pressure Limits: 15 psig (1.0 bar).<\/li>\n<li class=\"title\">Thermal Effects: \u00b10.03% FS\/\u00b0F (\u00b10.054% FS\/\u00b0C).<\/li>\n<li class=\"title\">Compensated Range: From 40 to 170\u00b0F (4.4 to 77\u00b0C).<\/li>\n<li class=\"title\">Power Requirements: 12 to 32 VDC.<\/li>\n<li class=\"title\">Output Signals: 4 to 20 mA (2-wire), 0 to 10 VDC (3-wire), or 0 to 5 VDC (3-wire).<\/li>\n<li class=\"title\">Zero Adjustment: Accessible under the small terminal cover.<\/li>\n<li class=\"title\">Electrical Connection: Terminal strip.<\/li>\n<li class=\"title\">Process Connection: 3\/16&#8243; OD barbed brass for 1\/8&#8243; ID push-on tubing.<\/li>\n<li class=\"title\">Enclosure: Stainless steel and PC+ABS alloy, UL 94 V-0 rated.<\/li>\n<li class=\"title\">Weight: 4.0 oz (113 g).<\/li>\n<li class=\"title\">Agency Approvals: CE.<\/li>\n<\/ul>\n<\/section>\n<p>&nbsp;<\/p>\n<h2 class=\"tab-heading\">Models &amp; Ordering<\/h2>\n<h3>668B, 4 to 20 mA<\/h3>\n<table class=\"product-table\">\n<tbody>\n<tr>\n<th class=\"model-number\" nowrap=\"nowrap\" width=\"\">Model<\/th>\n<th class=\"description\" width=\"\">Description<\/th>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-01-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to 0.1&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-02-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to 0.25&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-03-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to 0.5&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-04-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to 1.0&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-05-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to 2.5&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-06-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to 5&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-07-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to 10&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-08-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to 25&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-09-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to 50&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-10-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to 100&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-12-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to \u00b10.1&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-13-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to \u00b10.25&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-14-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to \u00b10.5&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-15-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to \u00b11&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-16-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to \u00b12.5&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-17-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to \u00b15.0&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-18-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to \u00b110&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-19-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to \u00b125&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-21-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to 0.2&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-22-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to 0.4&#8243; w.c.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<h3>668B, 0 to 10 VDC<\/h3>\n<table class=\"product-table\">\n<tbody>\n<tr>\n<th class=\"model-number\" nowrap=\"nowrap\" width=\"\">Model<\/th>\n<th class=\"description\" width=\"\">Description<\/th>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-02-2<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 0 to 10 VDC, 0 to 0.25&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-03-2<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 0 to 10 VDC, 0 to 0.5&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-04-2<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 0 to 10 VDC, 0 to 1&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-05-2<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 0 to 10 VDC, 0 to 2.5&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-06-2<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 0 to 10 VDC, 0 to 5&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-12-2<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 0 to 10 VDC, 0 to \u00b10.1&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-13-2<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 0 to 10 VDC, 0 to \u00b10.25&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-21-2<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 0 to 10 VDC, 0 to 0.2&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-22-2<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 0 to 10 VDC, 0 to 0.4&#8243; w.c.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<h3>668B, 0 to 5 VDC<\/h3>\n<table class=\"product-table\">\n<tbody>\n<tr>\n<th class=\"model-number\" nowrap=\"nowrap\" width=\"\">Model<\/th>\n<th class=\"description\" width=\"\">Description<\/th>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-02-3<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 0 to 5 VDC, 0 to 0.25&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-03-3<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 0 to 5 VDC, 0 to 0.5&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-04-3<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 0 to 5 VDC, 0 to 1&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-05-3<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 0 to 5 VDC, 0 to 2.5&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-12-3<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 0 to 5 VDC, 0 to \u00b10.1&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-13-3<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 0 to 5 VDC, 0 to \u00b10.25&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668B-22-3<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 0 to 5 VDC, 0 to 0.4&#8243; w.c.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<h3>668D, 4 to 20 mA<\/h3>\n<table class=\"product-table\">\n<tbody>\n<tr>\n<th class=\"model-number\" nowrap=\"nowrap\" width=\"\">Model<\/th>\n<th class=\"description\" width=\"\">Description<\/th>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-01-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to 0.1&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-02-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to 0.25&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-03-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to 0.5&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-04-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to 1&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-05-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to 2.5&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-06-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to 5&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-07-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to 10&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-08-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to 25&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-09-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to 50&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-10-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to 100&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-12-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to \u00b10.1&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-13-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to \u00b10.25&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-14-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to \u00b10.5&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-15-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to \u00b11&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-16-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to \u00b12.5&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-17-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to \u00b15&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-18-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to \u00b110&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-19-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to \u00b125&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-21-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to 0.2&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-22-1<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 4 to 20 mA, 0 to 0.4&#8243; w.c.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<h3>668D, 0 to 10 VDC<\/h3>\n<table class=\"product-table\">\n<tbody>\n<tr>\n<th class=\"model-number\" nowrap=\"nowrap\" width=\"\">Model<\/th>\n<th class=\"description\" width=\"\">Description<\/th>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-02-2<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 0 to 10 VDC, 0 to 0.25&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-03-2<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 0 to 10 VDC, 0 to 0.5&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-04-2<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 0 to 10 VDC, 0 to 1&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-05-2<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 0 to 10 VDC, 0 to 2.5&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-06-2<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 0 to 10 VDC, 0 to 5&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-12-2<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 0 to 10 VDC, 0 to \u00b10.1&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-22-2<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 0 to 10 VDC, 0 to 0.4&#8243; w.c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<h3>668D, 0 to 5 VDC<\/h3>\n<table class=\"product-table\">\n<tbody>\n<tr>\n<th class=\"model-number\" nowrap=\"nowrap\" width=\"\">Model<\/th>\n<th class=\"description\" width=\"\">Description<\/th>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-04-3<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 0 to 5 VDC, 0 to 1&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-05-3<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 0 to 5 VDC, 0 to 2.5&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-06-3<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 0 to 5 VDC, 0 to 5&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-12-3<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 0 to 5 VDC, 0 to \u00b10.1&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-13-3<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 0 to 5 VDC, 0 to \u00b10.25&#8243; w.c.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">668D-22-3<\/td>\n<td class=\"description\" width=\"\">Compact differential pressure transmitter, 0 to 5 VDC, 0 to 0.4&#8243; w.c.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Series 668B\/D Compact Differential Pressure Transmitters Ranges from 0.1 to 100 in w.c., Overpressure Protection to 15 psig, \u00b10.8% Accuracy &nbsp; Our low cost\u00a0DWYER Series 668B\/D Differential Pressure Transmitters are capable of sensing differential gage pressure with \u00b10.8% FS accuracy, and converts this pressure difference to a proportional high level analog output for both unidirectional &#8230; <a title=\"DWYER Series 668B\/D Differential Pressure Transmitters\" class=\"read-more\" href=\"https:\/\/ancor.biz\/index.php\/product\/dwyer-series-668b-d-compact-differential-pressure-transmitters\/\" aria-label=\"More on DWYER Series 668B\/D Differential Pressure Transmitters\">Read more<\/a><\/p>\n","protected":false},"featured_media":8366,"template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"spay_email":""},"class_list":["post-8365","product","type-product","status-publish","has-post-thumbnail","hentry","product_cat-brand","product_cat-differential-pressure","product_cat-dwyer-pressure-transmitter","product_cat-dwyer-instruments-dwyer-omega","product_cat-dwyer-instruments-brand","product_cat-dwyer-omega","product_cat-pressure-transmitter","product_cat-pressure-transmitter-dwyer-instruments-brand","product_cat-pressure-transmitter-dwyer-instruments-dwyer-omega","product_tag-668b-01-1","product_tag-668b-02-1","product_tag-668b-02-2","product_tag-668b-02-3","product_tag-668b-03-1","product_tag-668b-03-2","product_tag-668b-03-3","product_tag-668b-04-1","product_tag-668b-04-2","product_tag-668b-04-3","product_tag-668b-05-1","product_tag-668b-05-2","product_tag-668b-05-3","product_tag-668b-06-1","product_tag-668b-06-2","product_tag-668b-07-1","product_tag-668b-08-1","product_tag-668b-09-1","product_tag-668b-10-1","product_tag-668b-12-1","product_tag-668b-12-2","product_tag-668b-12-3","product_tag-668b-13-1","product_tag-668b-13-2","product_tag-668b-13-3","product_tag-668b-14-1","product_tag-668b-15-1","product_tag-668b-16-1","product_tag-668b-17-1","product_tag-668b-18-1","product_tag-668b-19-1","product_tag-668b-21-1","product_tag-668b-21-2","product_tag-668b-22-1","product_tag-668b-22-2","product_tag-668b-22-3","product_tag-668d-01-1","product_tag-668d-02-1","product_tag-668d-02-2","product_tag-668d-03-1","product_tag-668d-03-2","product_tag-668d-04-1","product_tag-668d-04-2","product_tag-668d-04-3","product_tag-668d-05-1","product_tag-668d-05-2","product_tag-668d-05-3","product_tag-668d-06-1","product_tag-668d-06-2","product_tag-668d-06-3","product_tag-668d-07-1","product_tag-668d-08-1","product_tag-668d-09-1","product_tag-668d-10-1","product_tag-668d-12-1","product_tag-668d-12-2","product_tag-668d-12-3","product_tag-668d-13-1","product_tag-668d-13-3","product_tag-668d-14-1","product_tag-668d-15-1","product_tag-668d-16-1","product_tag-668d-17-1","product_tag-668d-18-1","product_tag-668d-19-1","product_tag-668d-21-1","product_tag-668d-22-1","product_tag-668d-22-2","product_tag-668d-22-3","product_tag-dwyer-series-668b-d","product_tag-dwyer-series-668b-d-differential-pressure-transmitters","sales-flash-overlay","woocommerce-text-align-center","woocommerce-image-align-center","do-quantity-buttons","wc-has-gallery"],"yoast_head":"<!-- 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