{"id":1582065221,"title":"HANNA HI 749 Checker HC ® - Chromium VI. LR","handle":"hi749","description":"\u003cp style=\"text-align: justify;\"\u003eThe HI 749 Checker®HC is a simple. accurate. and cost effective way to measure low ranges of chromium VI in fresh water.  Designed as a more accurate alternative to chemical test kits. the HI 749 provides quick. accurate results in four easy steps.\u003c\/p\u003e\n\u003cp style=\"text-align: justify;\"\u003eThe HI 749 uses an adaptation of the ASTM Manual of Water and Environmental Technology. D1687-92. Diphenylcarbohydrazide method. The reaction between chromium VI and the reagent causes a purple tint in the sample.\u003c\/p\u003e\n\u003cp style=\"text-align: justify;\"\u003e\u003cstrong\u003eOrder Information:\u003c\/strong\u003e   The HI 749 Checker®HC is supplied with 2 cuvettes and caps. reagent starter kit (6 packets of chromium VI LR reagent). 1 x 1.5V AAA battery. and an instruction manual.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecification :\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRange\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e0 to 300 ppb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e1 ppb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy (@25°C\/77°F)\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e±3 ppb ±5% of reading\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement Method\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eColorimetric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight Source\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003ePhotodiode @525 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight Detector\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eSilicon photocell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMethod\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eAdaptation of ASTM Manual of Water \u0026amp; Environmental Technology. D1687-92. Diphenylcarbohydrazide method. The reaction between chromium VI and the reagent causes a purple tint in the sample.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eBattery - 1 x 1.5V AAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Auto Off\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eAfter 10 min. of inactivity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironment\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e0 to 50°C (32 to 122°F); RH max 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”) Weight 64 g (2.25 oz.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","published_at":"2026-06-25T16:31:17+12:00","created_at":"2015-09-01T15:02:14+12:00","vendor":"Hanna Instruments","type":"Electrochemical","tags":["Manufacturer_Hanna Instruments","Type_Colorimeter"],"price":8900,"price_min":8900,"price_max":8900,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":4857030597,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"HI749","requires_shipping":false,"taxable":true,"featured_image":null,"available":true,"name":"HANNA HI 749 Checker HC ® - Chromium VI. LR","public_title":null,"options":["Default Title"],"price":8900,"weight":0,"compare_at_price":null,"inventory_quantity":1,"inventory_management":null,"inventory_policy":"deny","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/acornsci.co.nz\/cdn\/shop\/products\/mini-photometer-fur-chrom-vi-niedrig-2422_1-151cb140e2335c_2015.jpeg?v=1443494428"],"featured_image":"\/\/acornsci.co.nz\/cdn\/shop\/products\/mini-photometer-fur-chrom-vi-niedrig-2422_1-151cb140e2335c_2015.jpeg?v=1443494428","options":["Title"],"media":[{"alt":"HI 749 Checker HC ® - Chromium VI. LR - Acorn Scientific","id":21265711203,"position":1,"preview_image":{"aspect_ratio":1.0,"height":800,"width":800,"src":"\/\/acornsci.co.nz\/cdn\/shop\/products\/mini-photometer-fur-chrom-vi-niedrig-2422_1-151cb140e2335c_2015.jpeg?v=1443494428"},"aspect_ratio":1.0,"height":800,"media_type":"image","src":"\/\/acornsci.co.nz\/cdn\/shop\/products\/mini-photometer-fur-chrom-vi-niedrig-2422_1-151cb140e2335c_2015.jpeg?v=1443494428","width":800}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp style=\"text-align: justify;\"\u003eThe HI 749 Checker®HC is a simple. accurate. and cost effective way to measure low ranges of chromium VI in fresh water.  Designed as a more accurate alternative to chemical test kits. the HI 749 provides quick. accurate results in four easy steps.\u003c\/p\u003e\n\u003cp style=\"text-align: justify;\"\u003eThe HI 749 uses an adaptation of the ASTM Manual of Water and Environmental Technology. D1687-92. Diphenylcarbohydrazide method. The reaction between chromium VI and the reagent causes a purple tint in the sample.\u003c\/p\u003e\n\u003cp style=\"text-align: justify;\"\u003e\u003cstrong\u003eOrder Information:\u003c\/strong\u003e   The HI 749 Checker®HC is supplied with 2 cuvettes and caps. reagent starter kit (6 packets of chromium VI LR reagent). 1 x 1.5V AAA battery. and an instruction manual.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecification :\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRange\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e0 to 300 ppb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e1 ppb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy (@25°C\/77°F)\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e±3 ppb ±5% of reading\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement Method\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eColorimetric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight Source\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003ePhotodiode @525 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight Detector\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eSilicon photocell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMethod\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eAdaptation of ASTM Manual of Water \u0026amp; Environmental Technology. D1687-92. Diphenylcarbohydrazide method. The reaction between chromium VI and the reagent causes a purple tint in the sample.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eBattery - 1 x 1.5V AAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Auto Off\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eAfter 10 min. of inactivity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironment\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e0 to 50°C (32 to 122°F); RH max 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”) Weight 64 g (2.25 oz.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e"}