The Insta-TEST Biguanide by LaMotte Co. is a test strip that measures biguanide, alkalinity, pH and hardness. Results should appear in 10 seconds or less. Each kit comes with 25 test strips packaged in a waterproof PopTop bottle with a desiccant liner. Bottles come blister-carded with 12 units per case.
Contact: (800) 344-3100; www.lamotte.com/insta