| Input Pulse (frequency) output type sensors |
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Gear sensor![]() |
Flow sensor![]() |
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Rotary encoder![]() |
Linear encoder![]() |
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Input Pulse ・5V logic ・Zero cross ・12V logic |
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| Sensor power output ・12V/5V/others |
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| Calculation [Speed, frequency, period, totalization] ・ PeriomaticTM B method ・Moving average ・Low cut ・Hold [Current/max./min./max. fluctuation range] ・Totalization [Zero shift, span shift, stop, start] |
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SPD-24 series![]() |
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| Power supply ・7 to 60V DC ・USB power 5V |
Setting ・LINKSHIP software ・Setting unit PL-5A |
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| Output ・16bit analog ・Alarm ・CAN ・RS-485 ・Modbus ・USB |
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PC![]() |
PLC![]() |
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Logger![]() |
Oscilloscope![]() |
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Indicator lamps![]() |
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| Angle |
| Position |
| Length |
| Flow rate |
| Rewind volume |




| >View more |
| See 40ms type> |
3-wire system greatly reduces wiring compared to BCD
Powerful error detection system for improved noise immunity and safety
| SAE J1939 (DLC 8 bytes or less) Customization Please contact us for other customizations. |
Resolution 50,000 or more/Full scale and zero scale settings, output zero adjustment
| 5V Logic |
| Zero cross |
| NPN open collector |
| 12V Logic |
| Customized signal |
| Input isolation |
| A/B phase input |
| Line driver input |
| Trigger Level 0-9.99V |
| Hysteresis select |
| Pull-up ON/OFF |
| 5V |
| 12V |
| Other voltage* |
| *Please contuct us |
Maximum 99
[Option] HOLD, zero shift, etc.
| See Low-cost version > |
| SPD-2401 |
| 32,500 yen and up* |
| Display only, Equipped with USB communication |
| SPD-2451 |
| 28,100 yen and up* |
| DIN rail mounting, no display |
| See options and price list> |
| LINKSHIP Page > |








Detachable Plug Connectors
Simply connect the wires to the connector and plug it in by hand.

Detachable Plug Connectors
Spring lock type [Standard]

Detachable Plug Connectors
M2 screw type [Option]

Fixed Connector
Non-detachable [Customize]

Mounting hooks
Fixing the main body

Carry PC, instrument, and cable, and measure with USB power supply. Storage case BXS-1 is also available.
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![]() ![]() >BXS-1 Overview |
One-touch fixture and display-less type
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| BXF-DN2 DIN rail attachment[sold separately] |
SPD-2451 Display-less type |
SPD-2431 With display type |
| >BXF-DN2 page |
| See more Applications > |
| Model List, Options and Prices > |
| Model | SPD-2401 / SPD-2411 / SPD-2431 / SPD-2451 | |||||||||||||||
| Measuring method | PeriomaticTM B method [Periodic arithmetic method] | |||||||||||||||
| Input | ||||||||||||||||
| Number of input points | 1 | |||||||||||||||
| Input frequency | 0.0006Hz to 1.0MHz | |||||||||||||||
| Input resolution | Approx. 10.4ns [96MHz] | |||||||||||||||
| Input Signal | 5V logic, zero cross, NPN open collector, 12V logic, input customized signal | |||||||||||||||
| Input method | Single-phase signal, 2-phase signal [direction signal, UP/DOWN signal] |
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| General-purpose input type | ||||||||||||||||
| Input Level and Sensitivity |
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| Input pulse | [Small] [Medium] 0.2 μs or more [Large] 0.3 μs or more, for both H and L levels | |||||||||||||||
| Input resistance | [5V logic] [zero cross] [NPN open collector] [Input customized signal, trigger level 4.7V or lower] 10kΩ [12V logic] [input customized signal, trigger level 4.71V or higher] 5kΩ |
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| Input withstand voltage | ±30V *Inputs and outputs are not insulated for the general-purpose input option. |
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| Line driver input Option | ||||||||||||||||
| Input signal | Line driver signal | |||||||||||||||
| Input withstand voltage | ±25V differential voltage | |||||||||||||||
| Recommended line driver | Equivalent to AM26LS31 | |||||||||||||||
| Termination resistance | 300Ω [standard specification] *Input and output are isolated for the line driver input option. |
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| 2-Phase[A/B] input Option Switchable between 1-phase and 2-phase [A/B] signals. When single-phase input is used, input level, Trigger level, etc. are the same as for 2-phase signals. | ||||||||||||||||
| Input Level and Sensitivity |
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| Input pulse | [Small/Medium] 0.2 μs or more, for both H and L levels | |||||||||||||||
| Input resistance | 10kΩ | |||||||||||||||
| Input withstand voltage | ±30V |
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| Input low-pass filter | Select from OFF, 500Hz, 5kHz, 120kHz, or 800kHz | |||||||||||||||
| Trigger edge | Fall | |||||||||||||||
| Input connector | Spring lock plug connector / [J04 option] M2 screw type plug connector | |||||||||||||||
| Sensor Power supply | [Option] [H] DC +12V±5% 60mA max / [L] DC +5V±5% 150mA max *When USB power is supplied, sensor power is not output. |
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| Calculation | ||||||||||||||||
| Measurement mode | Velocity meter/ Frequency meter/ Period meter [Seconds only] / Counter[Totalizer] | |||||||||||||||
| Calculation rate | Set the reference pulse number, reference change, and speed unit time with respect to the input frequency | |||||||||||||||
| Frequency divider ratio | 1 to 60000 | |||||||||||||||
| Output moving average | 1 to 99 | |||||||||||||||
| Dynamic PredictiveTM | 8 levels [including continuous and stop prediction] | |||||||||||||||
| Control input | None or 1 point [depending on model] [D2] Option to add 2 points. | |||||||||||||||
| [Setting contents] | Set a function for each control input and control from outside | |||||||||||||||
| Functions | Hold [current/max./min. value, max. fluctuation range], Zero/Span shift [count], Stop/Start count | |||||||||||||||
| ON logic | Normally open / Normally closed | |||||||||||||||
| [Operation Method] | ON when control input pin [ON logic] is shorted [open] to GND; setting is reflected when open [shorted] | |||||||||||||||
| [Data communication] | Command control is possible via communication [USB, CAN, RS-485] Commands set via communication cannot be released by terminal input. Reset execution is always required. |
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| Low cut | Low cut function Stop judgment at a speed lower than the set value |
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| Display | ||||||||||||||||
| Display Color | [Standard] SPD-2401 Red LED [Option]SPD-2401-G Green LED |
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| Indicator [Numerical Display] | 5-digit, 7-segment LED Character height 9mm / Display range:-19999 to 99999 Polarity indication: Reverse rotation -Lighted / Over indication: OL / Zero indication: Leading zero suppress |
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| Decimal point position | Semi-fixed Decimal point position is set in program mode. [0] *****, [1] ****.* to [4] *.**** | |||||||||||||||
| Display update time | 0.3 sec [settable from 0.1 to 9.9 sec] | |||||||||||||||
| Display accuracy | 20ppm ± 1 digit | |||||||||||||||
| Indicator [3 round LEDs] | LED 1 point [selected from power/ control input/ trigger/ comparator output] |
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| USB communication | ||||||||||||||||
| Communication specification | USB2.0 [Serial port communication by USB virtual COM 230.4kbps] | |||||||||||||||
| Communication function | Writing/reading of set values/ Continuous output of measured values | |||||||||||||||
| Output update time | 1 to 9999.9ms, settable in 0.1ms increments [No output when output update time is set to 1 to 9] |
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| General Information | ||||||||||||||||
| Operating temp./humidity | -10°C to +50°C / 35 to 85%RH [non-condensing] | |||||||||||||||
| Power supply voltage | 7 to 60V DC with reverse connection protection. Power supply from USB host: 5V | |||||||||||||||
| Power consumption | 3W or less | |||||||||||||||
| Isolation | Power Supply/ Other Input/Output | |||||||||||||||
| Withstand voltage | Power supply/ Other input/output: 500V DC between each terminal for 1 minute | |||||||||||||||
| Weight | Approx. 60g |
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| CAN Option | ||||||||||||||||
| Communication specifications | CAN2.0B 10 k / 20 k / 50 k / 100 k / 250 k / 500 k / 1M bps [Format] INTEL/MOTOROLA, [Frame] 11bit/29bit | |||||||||||||||
| Communication function | Writing/reading of set values/ Continuous output of measured values | |||||||||||||||
| Setting item | CAN transmit ID, CAN receive ID | |||||||||||||||
| Output update time | 1ms to 9999.9ms settable in 0.1 ms increments When output update time is set to 1 to 9, instantaneous values are output every 1 ms |
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| RS-485 communication option Modbus RTU support is available upon request. | ||||||||||||||||
| Number of connected units | 32 units [max.] | |||||||||||||||
| Communication format | 2-wire multi-drop serial communication | |||||||||||||||
| Communication method | Asynchronous | |||||||||||||||
| Communication standard | RS-485 | |||||||||||||||
| Communication speed | 9600bps / 19200bps / 38400bps Set in program mode | |||||||||||||||
| Data format | Start bit: 1 bit / Stop bit: 1 bit / Data length: 8 bits / Parity bit: None | |||||||||||||||
| Communication code | ASCII | |||||||||||||||
| Communication function | Writing/reading set values/measurement value output [response to request command] |
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| Analog output option | ||||||||||||||||
| Output signals | [E1] 0 - 10V [E5] 0 - 5V [R1] ±10V [R5] ±5V [I1] 4 - 20mA [Select a model] | |||||||||||||||
| D/A conversion method | DAC conversion method | |||||||||||||||
| Output resolution | 16bit16bit [50,000 or more] | |||||||||||||||
| Load resistance | [Voltage output] 4.7kΩ or more / [Current output] 300Ω or less | |||||||||||||||
| Output accuracy | [Voltage output] ±0.1% of FS @ 23℃/ [Current output] ±0.1% of FS @ 23℃ | |||||||||||||||
| Temperature fluctuation | ±200ppm/℃ or less | |||||||||||||||
| Output scaling | Arbitrary scaling is possible by full scale and zero scale settings | |||||||||||||||
| Output update time | 0.1 to 9999.9ms settable in 0.1ms increments | |||||||||||||||
| Input/output delay time | Output update time + analog rise time 150 μs max. |
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| Alarm [Comparator] output option | ||||||||||||||||
| Setting method | Set in program mode | |||||||||||||||
| Number of outputs | 2 points (or 1 point) depends on the models 1 point for line driver input and analog output with comparator output specification. | |||||||||||||||
| Output form | Isolated non-contact output [photo-MOS relay] No polarity. When comparator operating condition is ON, resistance between COMP and COM 50 Ω or less for C2 option [2 comparator] / 100 Ω or less for C1 option [1 comparator] |
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| Output load voltage | Peak AC/DC280V 100mA [resistive load] / ON resistance 50Ω or less | |||||||||||||||
| Output logic | Comparison is made with polarity [0 is greater than minus]
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| Update time | Depends on analog output update time setting. Response time 1ms [max.] | |||||||||||||||
| View more > |
| CAN analog conversion | DC current | DC voltage |
| Thermocouple [temp.] | Thermistor [temp.] | RTD [temp.] |
| Speed/Count | Frequency deviation/torque | Resistance |
Various Outputs
Software LINKSHIP
For data logging, setting
Customization