| Shipping Inspection |
| Performance Testing |
| Operation Simulation |
| Equipment Inspection |
| 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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| Sensor Power Supply ・12V / 5V / Others |
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| Calculation (Speed, Frequency, Period, Totalization) | ||||||||||
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SPD-HD![]() |
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| Power Supply ・4 AA Batteries ・AC Adapter Included |
Configuration ・On-board Buttons ・LINKSHIP (Free Software) ・External Setter (PL-5A) |
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| Output | |||||||
PC, PLC, Logger, Oscilloscope, Indicator, etc.
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3-wire wiring significantly reduces cable count compared to BCD.
Powerful error detection system ensures high noise immunity and enhanced safety.
| SAE J1939 (DLC 8 bytes or less) Customization Examples Available Please consult us for other customizations. |
[Option] Resolution of 50,000 or higher, Full/Zero scale setting, Analog output zero adjustment
Selectable from 0-10V, 0-5V, ±10V, ±5V, 4-20mA (Specify at the time of order)
[Standard] Data logging and configuration
| 5V Logic |
| Zero-Cross |
| NPN Open Collector |
| 12V Logic |
| Customized Signals |
| Isolated Input |
| Phase A/B Input |
| Line Driver |
| Trigger Level 0-9.99V |
| 3 Hysteresis Levels |
| Pull-Up ON/OFF |
While general measuring instruments often have a fixed threshold of 2.5V, the SPD-HD allows configuration from 0 to 9V in 10mV increments, making it compatible with a wide variety of sensors.
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or | ![]() |
can also be inputted |
| Threshold: 0.5V | Threshold: 7V |
| 5V |
| 12V |
| Other Voltages |
| 4 x AA Batteries |
| Included AC Adapter |
On-board Buttons
Configure instantly using the 4-key buttons on the top panel

PC + Setup Software
LINKSHIP [Free of charge]

External Configurator
PL-5A [Sold separately]


[A] For included AC adapter
[B] USB Type-C
[C] Digital switch for quick configuration
[D] LAN port or 3-pin terminal block for digital communication
[E] 8-pin terminal block for signal input and analog output

[F] Pop-up BNC for analog output
[G] Pop-up BNC for signal input

You can choose from combinations of digital communication options (CAN, RS-485, RS-232C, Ethernet, 2-point alarms) and I/O connectors (Terminal Block, BNC, M8). * [ ] indicates option model codes.
| View Options, Model Code Table & Prices > |
| I/O Connectors | |||
| Digital Communication Options |
[J1] 8-pin Terminal Block |
[J2] BNC Connector |
[J3] M8 Connector |
| [S01] CAN [S03] RS-485 [S05] RS-232C [C2] Alarm |
TB-A: Sensor Input + Analog Output OptionTB-B: Digital Communication Option |
BNC-1: Sensor InputBNC-2: Analog Output Option TB-B: Digital Communication Option |
M8-1: Sensor InputM8-2: Analog Output Option TB-B: Digital Communication Option |
| [S06] Ethernet | TB-A: Sensor Input + Analog Output OptionLAN: Ethernet Communication Option |
(Please inquire) | M8-1: Sensor InputM8-2: Analog Output Option LAN: Ethernet Communication Option |
| Without Digital Communication |
TB-A: Sensor Input + Analog Output Option |
BNC-1: Sensor InputBNC-2: Analog Output Option |
(Please inquire) |



| Product Name | Pocketable Speedometer / Totalizer [Switchable] | |||||||||||||||
| Model Code | SPD-HD | |||||||||||||||
| Measurement Method | PeriomaticTM Method B (Period computation method) |
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| Input Section | ||||||||||||||||
| Input Points | 1 point | |||||||||||||||
| Input Frequency Range | 0.0006Hz - 1.0MHz | |||||||||||||||
| Input Resolution | Approx. 10.4ns (96MHz) | |||||||||||||||
| Input Signals | 5V Logic, Zero-Cross, NPN Open Collector, 12V Logic, Customized Input Signals | |||||||||||||||
| Input System | Single-phase signal, 2-phase signal (Direction signal, UP/DOWN signal) | |||||||||||||||
| General-Purpose Input Type | ||||||||||||||||
| Input Level / Sensitivity |
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| Input Pulse Width | 0.2μs or more (Hysteresis: Small, Medium) / 0.3μs or more (Hysteresis: Large) for both H and L levels | |||||||||||||||
| Input Resistance | 10kΩ: 5V Logic, Zero-Cross, NPN Open Collector, Customized Input Signal (Trigger level 4.7V or less) 5kΩ: 12V Logic, Customized Input Signal (Trigger level 4.71V or higher) |
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| Withstanding Input Voltage | ±30V *General-purpose input option is non-isolated between input and output. |
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| Line Driver Input Type (Option) | ||||||||||||||||
| Input Signal | Line Driver Signal | |||||||||||||||
| Withstanding Input Voltage | ±25V (Differential voltage) | |||||||||||||||
| Recommended Line Driver | AM26LS31 equivalent | |||||||||||||||
| Termination Resistor | 300Ω (Standard spec) *Line driver input option is isolated between input and output. |
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| 2-Phase (A/B Phase) Input Type (Option) Switchable between single-phase and 2-phase (A/B) signals. For single-phase input, the input level, trigger level, etc., comply with 2-phase signal specs. | ||||||||||||||||
| Input Level / Sensitivity |
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| Input Pulse Width | 0.2μs or more for both H and L levels | |||||||||||||||
| Input Resistance | 10kΩ | |||||||||||||||
| Withstanding Input Voltage | ±30V |
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| Input Low-Pass Filter | OFF / 500Hz / 5kHz / 120kHz / 800kHz | |||||||||||||||
| Trigger Edge | Falling edge | |||||||||||||||
| Input Connector |
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| Sensor Power Output | [H] Option: DC +12V±5% 60mA max [L] Option: DC +5V±5% 150mA max *For M8 connector type, specify either 5V or 12V. |
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| Computation Section | ||||||||||||||||
| Measurement Mode | Speedometer / Frequency Meter / Period Meter (Seconds only) / Totalizer [Switchable] | |||||||||||||||
| Computation Rate | Configures the reference pulse count, reference variation, and speed unit time relative to the input frequency. | |||||||||||||||
| Frequency Division Ratio | 1 - 60000 | |||||||||||||||
| Output Moving Average | 1 - 99 | |||||||||||||||
| Dynamic PredictionTM | 8 steps (Including continuous prediction and stop prediction) | |||||||||||||||
| Control Input | None or 1 point (Depending on model) | |||||||||||||||
| [Function] Configurable from Hold (Current value, Max value, Min value, Max fluctuation width) or Reset (Totalizer) ON when shorted to GND, OFF when opened |
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| Low-Cut Function | Determines stop at speeds below the set value |
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| Display Section | ||||||||||||||||
| Display (Numerical) | 16 Characters x 2 Lines, Character Height 6mm, OLED | |||||||||||||||
| Display Range | Single-phase: 0.00000 - 999999 / 2-phase: ±999999 | |||||||||||||||
| Decimal Point Position | Configurable via program mode: 0 - 5 digits | |||||||||||||||
| Display Accuracy | Within 20ppm ±1 count | |||||||||||||||
| Display Update Time | 0.1 - 9.9s (Configurable in 0.1s increments) | |||||||||||||||
| Power ON/OFF Indicator | Power switch with built-in LED |
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| USB Communication Section | ||||||||||||||||
| USB Communication Spec | USB 2.0 (Serial port communication via USB Virtual COM, 230.4kbps) | |||||||||||||||
| USB Comm. Function | Write/Read settings, Continuous measurement value output | |||||||||||||||
| Output Update Time | 1ms - 9999.9ms (Configurable in 0.1ms increments) |
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| General Specifications | ||||||||||||||||
| Operating Temp/Humidity | -10°C to +50°C / 35 to 85%RH (Non-condensing) | |||||||||||||||
| Storage Temperature | -20°C to +65°C | |||||||||||||||
| Supply Voltage | [Standard] 4 x AA 1.5V batteries (DC6V), approx. 8 hours of use [AC Adapter] Please be sure to use the included accessory. |
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| Power Consumption | 3W or less (Main unit only, excluding sensor power supply output. When sensor power output is active, operating duration will decrease depending on current consumption.) |
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| Isolation | Power supply / Other inputs and outputs | |||||||||||||||
| Dielectric Strength | Power supply / Other inputs and outputs: DC500V for 1 minute between each terminal | |||||||||||||||
| External Dimensions | W94 x H32 x D150 mm | |||||||||||||||
| Accessories | AC adapter, Carrying case, 4 x AA batteries (Cables not included) |
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| CAN Option | ||||||||||||||||
| Communication Spec | CAN2.0B 10k / 20k / 50k / 100k / 250k / 500k / 1Mbps, Formats (INTEL/MOTOROLA), Frames (11-bit/29-bit) | |||||||||||||||
| Comm. Function | Write/Read settings, Continuous measurement value output | |||||||||||||||
| Configuration Items | CAN Transmit ID, CAN Receive ID | |||||||||||||||
| Output Update Time | 1ms - 9999.9ms (Configurable in 0.1ms increments) |
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| Analog Output Option | ||||||||||||||||
| Output Signal | [E1] 0 - 10V [E5] 0 - 5V [R1] ±10V [R5] ±5V [I1] 4 - 20mA 【Select Model】 | |||||||||||||||
| D/A Conversion Type | DAC conversion method | |||||||||||||||
| Output Resolution | 16-bit (50,000 or higher) | |||||||||||||||
| Load Resistance | Voltage Output: 4.7kΩ or more / Current Output: 300Ω or less | |||||||||||||||
| Output Accuracy | Voltage Output: ±0.1% of FS @23°C / Current Output: ±0.3% of FS @23°C | |||||||||||||||
| Temperature Drift | ±200ppm/°C or less | |||||||||||||||
| Output Scaling | Arbitrary scaling available via Full Scale and Zero Scale configurations | |||||||||||||||
| Output Update Time | 0.1ms - 9999.9ms (Configurable in 0.1ms increments) | |||||||||||||||
| I/O Delay Time | Output update time + Analog rise time (150μs or less) |
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| Ethernet Communication Option | ||||||||||||||||
| Connector Shape | RJ-45 (Network Interface) Lantronix XPort | |||||||||||||||
| Interface | 100BASE-TX / 10BASE-T (Auto-negotiation) Transmission Standard: Category 5 / Category 4 |
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| Communication Spec | Protocol TCP/IP method, Telnet communication connection | |||||||||||||||
| Output Update Time | Complies with USB communication: 1 - 9999ms | |||||||||||||||
| Transmission Comp. | DIX Ethernet Version 2.0 IEEE 802.3 | |||||||||||||||
| LED Display | 100BASE-TX / 10BASE-T | |||||||||||||||
| Link/Activity Indication | Full-Duplex / Half-Duplex (Encrypted networks like SSL/TLS or SSH are not supported via Telnet) |
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| RS-485 Option Modbus RTU support also available upon request | ||||||||||||||||
| Multi-drop Count | 32 units (Max) | |||||||||||||||
| Comm. Format | 2-wire multi-drop serial communication | |||||||||||||||
| Comm. Mode | Asynchronous | |||||||||||||||
| Comm. Standard | RS-485 | |||||||||||||||
| Baud Rate | 9600bps / 19200bps / 38400bps (Configurable via program mode) | |||||||||||||||
| Data Format | Start bit: 1-bit / Stop bit: 1-bit / Data length: 8-bit / Parity bit: None | |||||||||||||||
| Comm. Code | ASCII | |||||||||||||||
| Comm. Function | Write/Read settings, Measurement value output (Responds to request commands) |
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| Comparator (Alarm) Output Option | ||||||||||||||||
| Setting Method | Configurable via program mode | |||||||||||||||
| Output Points | 0 - 4 points (Depending on model) | |||||||||||||||
| Output Configuration | Isolated solid-state output (PhotoMOS relay), non-polarized When comparator condition is ON, resistance between COMP-COM is 50Ω or less for [C2] (2 points) / 100Ω or less for [C1] (1 point) |
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| Rating | Peak AC/DC 280V, 100mA (Resistive load), Max ON-resistance 50Ω or less | |||||||||||||||
| Output Logic | Comparison is performed with polarity (0 is greater than negative numbers)
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| Update Time | Depends on analog output update setting. Response time: 1ms (Max) | |||||||||||||||
| View All Products > |
| View Product Lineup > |
| Load Cell / Pressure / Strain | CAN Conversion |
| DC Current | DC Voltage |
| Thermocouple (Temperature) | Thermistor (Temperature) |
| RTD (Temperature) | Resistance |
| Speed / Totalizing | Frequency Deviation / Torque |
- CAN & 16-bit Analog (Voltage/Current) Output
- USB-C: Configuration & Data Logging
- Alarm Output / RS-485
- Dedicated Free Software: Settings Management, Report Printing & Data Logging