{"product_id":"single-high-resistance-decade-box-model-4721-single-high-resistance-decade-box-model-4721","title":"Single, High Resistance Decade Box Model 4721","description":"\u003cp\u003eThe Tinsley Model 4721 decade box is designed for the checking and calibration of insulation testers at voltages of up to 5000V DC.\u003c\/p\u003e\n\u003cp\u003eThe total range covered is from 1 kΩ to 1TeraΩ using specially selected resistors and a high quality switch mounted on an easy to read panel.\u003c\/p\u003e\n\u003cp\u003eThis resistance box is housed in a strong aluminium case with lid and carrying handle to provide an ideal solution to on-site and laboratory calibration of high resistance insulation testers.\u003c\/p\u003e\n\u003cp\u003eThe instrument can be supplied complete with a calibration certificate provided by our own in-house calibration laboratory.\u003c\/p\u003e","brand":"tinsley.co.uk","offers":[{"title":"Default Title","offer_id":57376322191695,"sku":null,"price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1009\/2088\/5583\/files\/47211.jpg?v=1775049247","url":"https:\/\/tinsley.co.uk\/products\/single-high-resistance-decade-box-model-4721-single-high-resistance-decade-box-model-4721","provider":"Tinsley Instrumentation Ltd","version":"1.0","type":"link"}