{"product_id":"oxyguard-model-420-oxygen-probe","title":"OxyGuard Model 420 DO probe","description":"\u003cp\u003eThe Model 420 is a membrane covered galvanic oxygen probe with built-in two-wire 4-20 mA transmitter. The probe is connected to a DC supply and draws a current of between 4 and 20 mA corresponding to the oxygen concentration.\u003c\/p\u003e\n\u003cp\u003eThere are only two wires to connect, and there is no limit to cable length. The output signal is galvanically isolated from the built-in electronics and the process fluid. Interference between the Model 420 and other equipment can never occur!\u003c\/p\u003e\n\u003cp\u003eThe OxyGuard Model 420 can therefore be connected directly to a wide range of equipment that can accept a 4-20 mA input, such as alarms, indicators, controllers, recorders, PLC’s, PC systems with A\/D input etc.\u003c\/p\u003e\n\u003cp\u003eThe Model 420 can also be used to measure gaseous oxygen concentration.\u003c\/p\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.oxyguard.dk\/media\/3azf5035\/d03-model-420-brochure-gb-1210.pdf\" title=\"D033 OxyGuard Model 420 DO Probe for 4-20mA\" target=\"_blank\"\u003eD033 OxyGuard Model 420 DO Probe for 4-20mA\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OxyGuard","offers":[{"title":"4-20mA = 0-10 mg\/l (Waste Water)","offer_id":55989583217025,"sku":"OX-D033MSV","price":17890.0,"currency_code":"NZD","in_stock":false},{"title":"4-20mA = 0-20mg\/l (Aquaculture)","offer_id":47752186429754,"sku":"OX-D033M","price":1463.0,"currency_code":"NZD","in_stock":false},{"title":"4-20mA = 0-400% (Super Saturated Water)","offer_id":47752186462522,"sku":"OX-D033SVH","price":1782.0,"currency_code":"NZD","in_stock":false},{"title":"4-20mA = 0-25% O2 by Volume","offer_id":47752186495290,"sku":"OX-D033","price":1463.0,"currency_code":"NZD","in_stock":false},{"title":"4-20mA = 0-100% (Pure Oxygen)","offer_id":47752186528058,"sku":"OX-D33SVH","price":1782.0,"currency_code":"NZD","in_stock":false},{"title":"4-20mA = 0-200%sat (Aquaculture)","offer_id":55966636114305,"sku":"OX-D033SV","price":1830.0,"currency_code":"NZD","in_stock":true},{"title":"4-20mA = 0-40mg\/l (Super Saturated Water)","offer_id":39728491692086,"sku":"OX-D033MH","price":1463.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0247\/9531\/6278\/files\/oxyguard-model-420-do-probe-ox-d033msv-7896183.png?v=1757079531","url":"https:\/\/groaqua.store\/en-nz\/products\/oxyguard-model-420-oxygen-probe","provider":"GroAqua","version":"1.0","type":"link"}