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Free Chlorine Checker by Hanna Instruments provides accurate monitoring of chlorine levels in water to ensure safety and compliance. Chlorine is the most common water disinfectant, and regular testing prevents serious health risks associated with improper dosing.
This Free Chlorine Checker bridges the gap between basic chemical test kits and professional instrumentation. Unlike chemical kits that rely on visual color comparison, the Hanna Checker uses a fixed wavelength LED and silicon photodetector to deliver professional-grade accuracy at an affordable price. It measures Free Chlorine in the ultra-low range of 0–500 ppb, perfect for testing dechlorinator units, tap water supply, and other sensitive water applications.
The HI-701 checker is compact, fitting comfortably in the palm of your hand. It features a large, easy-to-read LCD and an auto shut-off function to preserve battery life. The built-in timer ensures precise reaction timing for reliable measurements.
Supplied with 2 cuvettes and caps, a reagent starter kit (6 sachets), 1 x AAA battery, and an instruction manual, this checker is ready to use immediately. Spare reagents are also available in packs of 25 and can be purchased via the drop-down option. The Free Chlorine Checker is an essential tool for water testing professionals, hobbyists, and anyone responsible for safe water management.
Specifications:- Range 0.00 to 2.50 ppm (mg/L) - Resolution 0.01 ppm (mg/L) - Precision 3% of reading ±0.03 ppm (mg/L) @ 25°C - Light Source LED @ 525 nm - Light Detector Silicon photocell - Environment 0 to 50°C (32 to 122°F); RH max 95% non-condensing - Battery Type (1) 1.5V AAA - Auto-off After 2 minutes of non-use and after read - Dimensions 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”) - Weight 64 g (2.25 oz.) - Method EPA approved DPD method Standard Method 4500-Cl G. Conversion to mg/l below
1000ppb = 1mg/l
500ppb = 0.5mg/l
100ppb = 0.1mg/l
10ppb = 0.01mg/lFree & Total Chlorine Checkers from Hanna Instruments Ltd on Vimeo.
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What types of products do you offer?
At Queni Koi Southern, we provide a curated selection of high-quality pond supplies and premium koi food. Our products include innovative items like the Sinking Air Line for seamless pond aeration and advanced koi food such as the JPD Shogun, designed to enhance the health and vibrancy of your koi.
How can I ensure the well-being of my koi?
To promote the well-being of your koi, it's essential to provide them with high-quality food and maintain a healthy pond environment. Our expertly formulated koi food under the trademarked brand Kenko Koi food and our pond supplies are designed to support the health and vibrancy of your aquatic life, ensuring your pond remains a thriving ecosystem.
What is your shipping policy?
We pride ourselves on prompt delivery! We offer free next working day delivery on orders over £100, and we use trusted carriers to ensure your products arrive safely and on time. For more details, please check our shipping policy on our website.
What should I do if I receive a damaged or incorrect product?
If you receive a damaged or incorrect product, please contact us at orders@queni-koi.co.uk as soon as possible. We will replace the product free of charge and cover the return shipping costs for the incorrect or damaged item.
Can I return koi or specially made products?
Unfortunately, once koi have left our premises, we cannot accept any responsibility for them, and they cannot be returned. Additionally, specially made products, such as custom filtration systems, can only be returned if they are faulty or damaged.
How do I cancel my order?
If you wish to cancel your order, you can do so within 14 days of receiving your products. Please contact us at orders@queni-koi.co.uk for authorization.
What is your refund policy?
We will refund all sums paid by you if the items are returned in the condition they were sent. Please allow up to 3-5 days for us to process your return once we receive the items back.
How can I contact customer support?
You can reach our customer support team by emailing us at sales@queni-koi.co.uk or by calling us at 0116 2677053. We're here to help!
