SENPUM – Inductive Proximity Sensors DH/DH2 Series

Inductive Type

The SENPUM DH / DH2 Series represents a high‑performance family of cylindrical inductive proximity sensors designed for robust object presence detection in industrial automation systems. These sensors are suitable for detecting metallic targets without physical contact. The series includes both 3‑wire (DH) and 2‑wire (DH2) types, as well as variants with connector or cable interfaces, and options for shielded and non‑shielded housings to match different installation requirements and sensing ranges.

Equipped with features such as reverse polarity protection, short‑circuit protection, and surge absorption, the DH / DH2 Series offers reliable long‑term operation even in demanding industrial environments. With wide operating voltage ranges, high response frequencies, and precise repeatability, these sensors are ideal for machine automation, position detection, material handling, and other metal detection tasks. All models provide IP67 environmental protection to withstand dust and water exposure.

For more info, download our full technical spec.

Specifications

DH series 3-wire standard type

Main model

DH-004

DH-M005

DH-M008

DH-M012

DH-M018

DH-M030

DH-U008

DH-U012

DH-U018

DH-U030

Type

Shielded

Non-shielded

Detecting distance

1.2mm±10%

2mm±10%

4mm±10%

8mm±10%

15mm±10%

4mm±10%

8mm±10%

16mm±10%

30mm±10%

Setting distance

0~0.84mm

0~1.6mm

0~3.2mm

0~6.4mm

0~12mm

0~3.2mm

0~6.4mm

0~12.8mm

0~24mm

Standard target

5×5×1(mm)

8×8×1(mm)

12×12×1(mm)

24×24×1(mm)

45×45×1(mm)

12×12×1(mm)

24×24×1(mm)

48×48×1(mm)

90×90×1(mm)

Response frequency

2KHz

1.5KHz

1KHz

0.5KHz

0.25KHz

1KHz

0.8KHz

0.4KHz

0.1KHz

Hysteresis

1%~10% of detecting distance

1%~15% of detecting distance

Repeat precision

Less than 3% of detecting distance

Less than 5% of detecting distance

Power voltage

12~24VDC

10~30VDC

Current consumption

＜10mA

＜15mA

＜22mA

＜10mA

＜15mA

＜22mA

Output

–

NPN output
NPN open collector transistor
Load current: ＜100mA
Residual voltage: ＜2V (Load current 100mA and cable 2 m)
＜200mA
2.5V or less（Load current 200mA and cable 2 m）

Indicator

Yellow indicator (Lights up when output is ON)

Protection circuit

Reverse polarity protection, Output short-circuit protection, Surge absorber

Ambient temperature

Using:-25℃~+70℃; Storage:-25℃~+70℃

Relative humidity

Using:35~95%; Storage:35~95%

Withstand voltage

500VAC, 50/60Hz 1min between the whole charging part and the enclosure

1000VAC, 50/60Hz 1min between the whole charging part and the enclosure

1000VAC,50/60Hz 1min between the whole charging part and the enclosure

Insulation resistance

>20MΩ (DC500V) between the whole charging part and the enclosure

>50MΩ (DC500V) between the whole charging part and the enclosure

Vibration resistance

10 to 55 Hz, double amplitude 1.5 mm, 2 hours in each of the X, Y, and Z directions

Shock resistance

500m/s² (Approx. 50G), 3 times in each of the X, Y, and Z directions

Protective structure

IEC IP67

Connection method

Standard wire length 2m

Material

Enclosure: Nickel-plated brass, Front end: PBT, Back end: PC

Weight

–

Approx. 50g

Approx. 95g

Approx. 115g

Approx. 190g

Approx. 50g

Approx. 95g

Approx. 115g

Approx. 190g

DH-E series 3-wire connector type

Main model

DH-EM008

DH-EM012

DH-EM018

DH-EM030

DH-EU008

DH-EU012

DH-EU018

DH-EU030

Type

Shielded

Non-shielded

Detecting distance

2mm±10%

4mm±10%

8mm±10%

15mm±10%

4mm±10%

8mm±10%

16mm±10%

30mm±10%

Setting distance

0~1.6mm

0~3.2mm

0~6.4mm

0~12mm

0~3.2mm

0~6.4mm

0~12.8mm

0~24mm

Standard target

8×8×1(mm)

12×12×1(mm)

24×24×1(mm)

45×45×1(mm)

12×12×1(mm)

24×24×1(mm)

48×48×1(mm)

90×90×1(mm)

Response frequency

1.5KHz

1KHz

0.5KHz

0.25KHz

1KHz

0.8KHz

0.4KHz

0.1KHz

Hysteresis

1%~15% of detecting distance

Repeat precision

Less than 5% of detection distance

Power voltage

10~30VDC

Current consumption

＜10mA

＜15mA

＜22mA

＜10mA

＜15mA

＜22mA

Output

NPN output
NPN open collector transistor
Load current: ＜100mA
Residual voltage: ＜2V (Load current 100mA and cable 2 m)
＜200mA
2.5V or less（Load current 200mA and cable 2 m）

Indicator

Yellow indicator (Lights up when output is ON)

Protection circuit

Reverse polarity protection, Output short-circuit protection, Surge absorber

Ambient temperature

Using:-25℃~+70℃; Storage:-25℃~+70℃

Relative humidity

Using:35~95%; Storage:35~95%

Withstand voltage

1000V AC, 50/60Hz 1min between the whole charging part and the enclosure

Insulation resistance

>50MΩ (DC500V) between the whole charging part and the enclosure

Vibration resistance

10 to 55 Hz, double amplitude 1.5 mm, 2 hours in each of the X, Y, and Z directions

Shock resistance

500m/s² (Approx. 50G), 3 times in each of the X, Y, and Z directions

Protective structure

IEC IP67

Connection method

Connector

rM8-3Pin

Connector M12-4Pin

Connector

M8-3Pin

Connector M12-4Pin

Material

Enclosure: Nickel-plated brass (Except SN08 housing is stainless steel), Front end: PBT, Back end: PC

Weight

Approx. 20g

Approx. 30g

Approx. 60g

Approx. 130g

Approx. 20g

Approx. 30g

Approx. 60g

Approx. 130g

DH2 series 2-wire standard type

Main model	DH2-M008	DH2-M012	DH2-M018	DH2-M030	DH2-U008	DH2-U012	DH2-U018	DH2-U030
Type	Shielded				Non-shielded
Detecting distance	2mm±10%	4mm±10%	8mm±10%	15mm±10%	4mm±10%	8mm±10%	16mm±10%	30mm±10%
Setting distance	0~1.2mm	0~1.6m	0~4mm	0~8mm	0~1.6mm	0~3.2mm	0~6.4mm	0~12mm
Standard target	8×8×1(mm)	12×12×1(mm)	18×18×1(mm)	30×30×1(mm)	8×8×1(mm)	12×12×1(mm)	24×24×1(mm)	45×45×1(mm)
Response frequency	2KHz	1.5KHz	1KHz	0.5KHz	1KHz	0.8KHz	0.4KHz	0.1KHz
Hysteresis	1%~15% of detecting distance
Repeat precision	Less than 5% of detecting distance
Power voltage	10~30VDC
Output	NO/NC
Load current	＜100mA
Residual voltage	＜5V
Indicator	Yellow indicator (Lights up when output is ON)
Protection circuit	Reverse polarity protection, Output short-circuit protection, Surge absorber
Ambient temperature	Using:-25℃~+70℃; Storage:-25℃~+70℃
Relative humidity	Using:35~95%; Storage:35~95%
Withstand voltage	1000V AC、50/60Hz 1min between the whole charging part and the enclosure
Insulation resistance	>50MΩ (DC500V) between the whole charging part and the enclosure
Vibration resistance	10 to 55 Hz, double amplitude 1.5 mm, 2 hours in each of the X, Y, and Z directions
Shock resistance	500m/s² (Approx. 50G), 3 times in each of the X, Y, and Z directions
Protective structure	IEC IP67
Connection method	Standard wire length 2m
Material	Housing: Nickel-plated brass, Front end: PBT, Back end: PC
Weight	Approx. 20g	Approx. 30g	Approx. 60g	Approx. 130g	Approx. 20g	Approx. 30g	Approx. 60g	Approx. 130g

DH2-E series 2-wire connector type

Main model	DH2-EM008	DH2-EM012	DH2-EM018	DH2-EM030	DH2-EU008	DH2-EU012	DH2-EU018	DH2-EU030
Type	Shielded				Non-shielded
Detecting distance	2mm±10%	4mm±10%	8mm±10%	15mm±10%	4mm±10%	8mm±10%	16mm±10%	30mm±10%
Setting distance	0~1.2mm	0~1.6m	0~4mm	0~8mm	0~1.6mm	0~3.2mm	0~6.4mm	0~12mm
Standard target	8×8×1(mm)	12×12×1(mm)	18×18×1(mm)	30×30×1(mm)	8×8×1(mm)	12×12×1(mm)	24×24×1(mm)	45×45×1(mm)
Response frequency	2KHz	1.5KHz	1KHz	0.5KHz	1KHz	0.8KHz	0.4KHz	0.1KHz
Hysteresis	1%~15% of detecting distance
Repeat precision	Less than 5% of detecting distance
Power voltage	10~30VDC
Output	NO/NC
Load current	＜100mA
Residual voltage	＜5V
Indicator	Yellow indicator (Lights up when output is ON)
Protection circuit	Reverse polarity protection, Output short-circuit protection, Surge absorber
Ambient temperature	Using:-25℃~+70℃; Storage:-25℃~+70℃
Relative humidity	Using:35~95%; Storage:35~95%
Withstand voltage	1000V AC, 50/60Hz 1min between the whole charging part and the enclosure
Insulation resistance	>50MΩ (DC500V) between the whole charging part and the enclosure
Vibration resistance	10 to 55 Hz, double amplitude 1.5 mm, 2 hours in each of the X, Y, and Z directions
Shock resistance	500m/s² (Approx. 50G), 3 times in each of the X, Y, and Z directions
Protective structure	IEC IP67
Connection method	Connector M8-3Pin	Connector M12-4Pin			Connector M8-3Pin	Connector M12-4Pin
Material	Enclosure: Nickel-plated brass, Front end: PBT, Back end: PC
Weight	Approx. 20g	Approx. 30g	Approx. 60g	Approx. 130g	Approx. 20g	Approx. 30g	Approx. 60g	Approx. 130g

DH2-C series 2-wire relay type

Main model	DH2-CM008	DH2-CM012	DH2-CM018	DH2-CM030	DH2-CU008	DH2-CU012	DH2-CU018	DH2-CU030
Type	Shielded				Non-shielded
Detecting distance	2mm±10%	4mm±10%	8mm±10%	15mm±10%	4mm±10%	8mm±10%	16mm±10%	30mm±10%
Setting distance	0~1.2mm	0~1.6m	0~4mm	0~8mm	0~1.6mm	0~3.2mm	0~6.4mm	0~12mm
Standard target	8×8×1(mm)	12×12×1(mm)	18×18×1(mm)	30×30×1(mm)	8×8×1(mm)	12×12×1(mm)	24×24×1(mm)	45×45×1(mm)
Response frequency	2KHz	1.5KHz	1KHz	0.5KHz	1KHz	0.8KHz	0.4KHz	0.1KHz
Hysteresis	1%~15% of detecting distance
Repeat precision	Less than 5% of detecting distance
Power voltage	10~30VDC
Output	NO/NC
Load current	＜100mA
Residual voltage	＜5V
Indicator	Yellow indicator (Lights up when output is ON)
Protection circuit	Reverse polarity protection, Output short-circuit protection, Surge absorber
Ambient temperature	Using:-25℃~+70℃; Storage:-25℃~+70℃
Relative humidity	Using:35~95%; Storage:35~95%
Withstand voltage	1000V AC, 50/60Hz 1min between the whole charging part and the enclosure
Insulation resistance	>50MΩ (DC500V) between the whole charging part and the enclosure
Vibration resistance	10 to 55 Hz, double amplitude 1.5 mm, 2 hours in each of the X, Y, and Z directions
Shock resistance	500m/s² (Approx. 50G), 3 times in each of the X, Y, and Z directions
Protective structure	IEC IP67
Connection method	Connector M8-3Pin	Connector M12-4Pin			Connector M8-3Pin	Connector M12-4Pin
Cable length	0.3m
Material	Housing: Nickel-plated brass, Front end: PBT, Back end: PC
Weight	Approx. 20g	Approx. 30g	Approx. 60g	Approx. 130g	Approx. 20g	Approx. 30g	Approx. 60g	Approx. 130g