Liquid pH Sensor with BNC PH Electrode Probe For Arduino ProtoShield And because the TSL2561 is

And because the TSL2561 is an integrating sensor (it soaks up light for a predetermined amount of time)

Reception Distance: up to ~10 m–18 m under ideal conditions

(when the output low power level signal light is on

Width (mm): 55

2" SPI TFT LCD Display

Liquid pH Sensor with BNC PH Electrode Probe For Arduino ProtoShield And because the TSL2561 isHeating voltage: 5 0. 2V (AC DC) Working current: 5 10mA Detectable concentration range: PH0 14 Detection Temperature range: 0 80 Response time: 5S Settling Time: 60S Component Power: 0. 5W Working temperature: 10 ~ 50 (nominal temperature 20 ) Humidity: 95% RH (nominal humidity 65% RH) Module Size: 42mm 32mm 20mm Output: analog voltage signal output With 4pcs M3 Mounting Holes Package Included: 1pcs Liquid PH0 14 Value Detect Test Sensor Module with