Ammonia Low Range Checker
The HI-700 Ammonia Low Range Checker is a simple, accurate and cost effective way to measure low ranges of ammonia in fresh water.
Designed as a more accurate alternative to chemical test kits, the HI-700 provides quick, accurate results in four easy steps.
HI-700 uses an adaptation of the ASTM Manual of Water and Environmental Technology, D1426-92, Nessler method. The reaction between ammonia and reagents causes a yellow tint in the sample.
 
Specifications - 
Range - 0.00 to 3.00ppm NH3-N
Resolution - 0.01ppm
Accuracy - +-0.05ppm +-5% of reading
Measurement Method - Colorimetric
Light source - LED @470nm
Light detector - Silicon photocell 
Method - Adaptation of the ASTM Manual of Water and Environmental Technology D1426-92, Nessler Method. The reaction between ammonia and reagents causes a yellow tint in the sample.
Power supply - Battery x 1 AAA
Power Auto Off - 10 minutes of inactivity
Dimensions - 81.5 x 61 x 37.5mm
Weight - 64g 
 
**Spare reagents can be purchased, these come with 2 x bottles to test 25 times and can be chosen in the drop down option on this listing. **