LANDTEK Elevator Speedometer (Statistical Type) ES-2100B Memory Function

ES-2100B Elevator Speedometer 
Spec: This Elevator Speedometer is a compact and lightweight  handheld speedometer, designed for adjustment,  maintenance, and inspection of an elevator.
Display Section
Display unit 5-digit backlight LCD (upper and lower display)
Update time 100ms
Resolution 0.1 (m/min: Number of averagings 10 or more)
  1 (r/min: Number of averagings 10 or more)
  1 (mm)
Analog Output Section
Contents Instantaneous value (averaging result output)
Voltage range 0 to F.S. / 0 to 1V
Conversion method 10 bits D/A conversion
Linearity ±1% F.S.
Output update time 10ms
Output connector F2.5 pin jack
Pulse Output Section
Output method Transistor output (open collector)
Withstand voltage 14V
Number of pulses 800/rotation
Logic Negative logic
Pulse width Approx 0.5 to 1.2µs
Output connector F2.5 pin jack
General Specifications
Power supply 2x1.5v AA/UM-3 battery
Operating temperature 0~45°C
Storage temperature -10~60°C
Operating humidity 35~85%RH
Storage humidity 35~85%RH
Dimensions 211x80x36mm
Weight (Including batteries) 270g
Standard Accessories Main Unit
  Circumferential Ring
  Screwdriver,
  Rotating Contact Tip
  External Hold Signal Cable x 2
  Instruction Manual
  Carrying Case
Optional Accessories Lengthening Rod for Rotating Contact Tip
  Trigger Unit
  Bluetooth Printer
  USB Cable & Software
  Bluetooth Adapter & Software
Detection Section
Number of pulses 400pulses/rotation, slit reflection method
Light source Infrared LED
Light-receiving element Photo diode
Allowable 5kg in radial direction, 5kg in thrust direction
Bearing life 2x107r/min·h(maximum load within specification)
Batteries are not included in the product!