Ammonia nitrogen;total phosphorus
Ammonia nitrogen:Nessler’s reagent colorimetry.Solution with reagent and ammonia nitrogen turns yellow.
1. Excellent optical system design, with advanced microprocessor chip
2. Humanized operation interface, simple and convenient
3. Adopting specialized optical colorimetric cuvette, high accurate
4. High accurate silicon photocell sensor and light source
1.Any warranty for the goods?
1).This item comes with 12 months Manufacturer's Warranty from the date of customers purchased it. Special circumstances will be listed clearly in the listing.
2).If your item has been damaged in transit or become faulty in warranty period, please email us with pictures or video to show the problem.
3).Please do check everything carefully after you received the parcel, any the damage except DOA (Dead-On-Arrival) would not be covered if it's your fault.
4). Replacement products are provided with the same warranty as the returned products.
2.When I receive it after pay?
Dear customer, normal models can be delivered with 7-21 days, please contact us to check transport time to your address.
3.Can you send me some samples for review?
Yes, we can offer the samples,but shall have to charge the sample cost as well as the freight cost.The sample cost can be refunded after you place the orders.
4.What is your terms of payment ?
Payment 100% T/T, Western Union, L/C, Credit Card ect. in advance ,before shippment.