This patented IR Drop Counter is an affordable alternative to a burette. Using a reflective infra-red sensor to count drops, the detection area is large enough to allow for easy use and sensitive enough to record about 40 drops per second. The price includes the Model 158 clamp.
Features: Reflective Sensor, Corrects for Ambient Light, Corrects for Fragmented Drops, Lightweight, Waterproof, Holds pH meater and Temperature Probe
microLAB’s IR Drop Counter uses an infrared light emitting diode and a photo-transistor to count individual drops. An LED flashes on the drop counter for each drop detected. A background correction circuit subtracts ambient light from the sensor’s view while another circuit eliminates false counts from fragmented drops.
25 ms, TTL