Maximum input frequency: 120 Hz (120 pulses per second)
Measurement range: 0 – 65,533 pulses per logging interval
Resolution: 1 pulse
Lockout time: 45 µs ± 10%
Recommended input type: Electronic solid state switch closure or CMOS-level digital output (example: FET, opto-FET or open collector)
Preferred switch state: Active low input Normally open
Edge detection: Falling edge, Schmitt Trigger buffer (logic levels: low ≤ 0.6 V, high ≥ 2.7 V)
Minimum pulse width: 1 ms
Input/output impedance: 100 KΩ
Open circuit input voltage: 3.3 V
Maximum input voltage: 3.6 V
User connection: 24 AWG wires, 2 leads: white(+), black(-)
Operating temperature range: -40° to 75°C (-40° to 167°F)
Overall cable length: 1 m (3.3 ft.)
Housing: Weatherproof PVC housing protects input adapter electronics
Housing dimensions: 14 x 0.95 cm (5.5 x 0.375 in.)
Weight: 310 g (11 oz.)
Bits per sample: 16