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Axial 400 Series Hall Probe Specifications

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By default, each probe has a 2 m long cable (except Model 410 and cryogenic probes). Also available: 6 m, 10 m, and 30 m lengths.

Axial probes

Operating temperature range: 0 °C to +75 °C

L mm (in)

D mm (in)

A mm (in)

Approx. active area dia. mm (in)

Stem material

Frequency range

Usable full scale ranges*

Corrected accuracy (% rdg at 25 °C)

Temp coefficient (max) zero

Temp coefficient (max) of sensitivity

Contains temp sensor

for Models 475, 455, and 425

HMMA-0602-TH

51 ±3.2
(2 ±0.125)

1.52 dia +0.03/-0.08
(0.060 dia +0.001/-0.003)

0.13 ±0.08
(0.005 ±0.003)

0.51 (0.020)

Aluminum

DC to 400 Hz

HST-4
35 G, 350 G, 3.5 kG, 35 kG

±0.25% to 10 kG

±0.13 G/°C

±0.01%/°C

HMMA-0604-TH

102 ±3.2 (4 ±0.125)

HMMA-0608-TH

203 ±3.2 (8 ±0.125)

HMMA-0618-TH

457 ±3.2 (18 ±0.125)

HMMA-0802-UH

51 ±3.2 (2 ±0.125)

2.03 dia ±0.13
(0.080 dia ±0.005)

0.25 ±0.13
(0.010 ±0.005)

±0.25% to 20 kG

HMMA-0804-UH

102 ±3.2 (4 ±0.125)

HMMA-0808-UH

203 ±3.2 (8 ±0.125)

HMNA-1902-VR

51 ±3.2 (2 ±0.125)

4.75 dia ±0.13
(0.187 dia ±0.005)

0.13 ±0.08
(0.005 ±0.003)

0.76 (0.030)

Fiberglass epoxy

DC to 20 kHz

HSE
3.5 G, 35 G, 350 G, 3.5 kG, 35 kG

±0.20% to 30 kG and ±0.25% 30 to 35 kG

±0.09 G/°C

455/475:
±0.015%/°C

425:
-0.04%/°C

Yes

HMNA-1904-VR

Yes

102 ±3.2 (4 ±0.125)

HMNA-1908-VR

203.2 ±3.2 (8 ±0.125)

HMMA-1802-VR

51 ±1.6 (2 ±0.063)

4.57 dia +0.05/-0.10 (0.180 dia +0.002/-0.004)

0.38 ±0.13
(0.015 ±0.005)

Aluminum

DC to 10 kHz

HMMA-1804-VR

102 ±3.2 (4 ±0.125)

HMMA-1808-VR

203 ±3.2 (8 ±0.125)

HMMA-1818-VR

457 ±6.4 (18 ±0.25)

HMMA-1836-VR

914 ±6.4 (36 ±0.25)

HMMA-2502-VR

51 ±1.6 (2 ±0.063)

6.35 dia ±0.15
(0.25 dia ±0.006)

HMMA-2504-VR

Yes

102 ±3.2 (4 ±0.125)

HMMA-2508-VR

203 ±3.2 (8 ±0.125)

HMMA-2512-VR

305 ±6.4 (12 ±0.25)

HMNA-2518-VR-HF

457 ±12.7 (18 ±0.5)

6.35 dia ±0.13
(0.25 dia ±0.005)

0.64 ±0.13
(0.025 ±0.005)

Fiberglass epoxy

DC to 50 kHz

HMNA-1902-VF

51 ±3.2 (2 ±0.125)

4.75 dia ±0.13
(0.187 dia ±0.005)

0.13 ±0.08
(0.005 ±0.003)

DC to 800 Hz

HST-4
35 G, 350 G, 3.5 kG, 35 kG

±0.10% to 30 kG and ±0.15% 30 to 35 kG

±0.13 G/°C

-0.005%/°C

HMNA-1904-VF

Yes

102 ±3.2 (4 ±0.125)

HMNA-1908-VF

203 ±3.2 (8 ±0.125)

HMMA-1802-VF

51 ±1.6 (2 ±0.063)

4.57 dia +0.05/-0.10 (0.180 dia +0.002/-0.004)

0.38 ±0.13
(0.015 ±0.005)

Aluminum

DC to 400 Hz

HMMA-1804-VF

102 ±3.2 (4 ±0.125)

HMMA-1808-VF

203 ±3.2 (8 ±0.125)

HMMA-1818-VF

457 ±6.4 (18 ±0.25)

HMMA-1836-VF

914 ±6.4 (36 ±0.25)

HMMA-2502-VF

51 ±1.6 (2 ±0.063)

6.35 dia ±0.15
(0.25 dia ±0.006)

HMMA-2504-VF

Yes

102 ±3.2 (4 ±0.125)

HMMA-2508-VF

203 ±3.2 (8 ±0.125)

HMMA-2512-VF

305 ±6.4 (12 ±0.25)

HMMA-1804-WL
Temporarily unavailable

102 ±3.2 (4 ±0.125)

4.57 dia +0.05/-0.10 (0.180 dia +0.002/-0.004)

HST-3
35 G, 350 G, 3.5 kG, 35 kG, 350 kG

±1% to 100 kG

HMMA-1808-WL
Temporarily unavailable

203 ±3.2 (8 ±0.125)

HMMA-2504-WL
Temporarily unavailable

102 ±3.2 (4 ±0.125)

6.35 dia ±0.15
(0.25 dia ±0.006)

HMMA-2536-WL
Temporarily unavailable

914 ±6.4 (36 ±0.25)

L mm (in)

D mm (in)

A mm (in)

Approx. active area dia. mm (in)

Stem material

Frequency range

Usable full scale ranges

Corrected accuracy (% rdg at 25 °C)

Temp coefficient (max) zero

Temp coefficient (max) of sensitivity

Contains temp sensor

for Models 460, 450, and 421

MMA-0602-TH

51 ±3.2 (2 ±0.125)

1.52 dia +0.03/-0.08
(0.060 dia +0.001/-0.003)

0.13 ±0.08
(0.005 ±0.003)

0.51 (0.020)

Aluminum

DC and 10 Hz to 400 Hz

HST-2
300 G, 3 kG, 30 kG

±0.25% to 10 kG

±0.13 G/°C

±0.01%/°C

MMA-0604-TH

102 ±3.2 (4 ±0.125)

MMA-0608-TH

203 ±3.2 (8 ±0.125)

MMA-0618-TH

457 ±6.4 (18 ±0.25)

MMA-0802-UH

51 ±3.2 (2 ±0.125)

2.03 dia ±0.13
(0.080 dia ±0.005)

0.25 ±0.13 (0.010 ±0.005)

0.25% to 20 kG

MMA-0804-UH

102 ±3.2 (4 ±0.125)

MMA-0808-UH

203 ±3.2 (8 ±0.125)

MNA-1902-VH

51 ±3.2 (2 ±0.125)

4.75 dia ±0.13
(0.187 dia ±0.005)

0.13 ±0.08
(0.005 ±0.003)

0.76 (0.030)

Fiberglass epoxy

DC and 10 Hz to 400 Hz

HSE-1
30 G, 300 G, 3 kG, 30 kG

±0.25% to 30 kG

±0.09 G/°C

450/460: ±0.015%/°C

421: -0.04%/°C

Yes

MNA-1904-VH

102 ±3.2 (4 ±0.125)

MNA-1908-VH

203 ±3.2 (8 ±0.125)

MMA-1802-VH

51 ±1.6 (2 ±0.063)

4.57 dia +0.05/-0.10 (0.180 dia +0.002/-0.004)

0.38 ±0.13
(0.015 ±0.005)

Aluminum

MMA-1804-VH

102 ±3.2 (4 ±0.125)

MMA-1808-VH

203 ±3.2 (8 ±0.125)

MMA-1818-VH

457 ±6.4 (18 ±0.25)

MMA-2502-VH

51 ±1.6 (2 ±0.063)

6.35 dia ±0.15
(0.25 dia ±0.006)

MMA-2504-VH

102 ±3.2 (4 ±0.125)

MMA-2508-VH

203 ±3.2 (8 ±0.125)

MMA-2512-VH

305 ±6.4 (12 ±0.25)

MNA-1902-VG

51 ±3.2 (2 ±0.125)

4.75 dia ±0.13
(0.187 dia ±0.005)

0.13 ±0.08
(0.005 ±0.003)

Fiberglass epoxy

HST-2
300 G, 3 kG, 30 kG

±0.15% to 30 kG

±0.13 G/°C

-0.005%/°C

MNA-1904-VG

102 ±3.2 (4 ±0.125)

MNA-1908-VG

203 ±3.2 (8 ±0.125)

MMA-1802-VG

51 ±1.6 (2 ±0.063)

4.57 dia +0.05/-0.10 (0.180 dia +0.002/-0.004)

0.38 ±0.13
(0.015 ±0.005)

Aluminum

MMA-1804-VG

102 ±3.2 (4 ±0.125)

MMA-1808-VG

203 ±3.2 (8 ±0.125)

MMA-1818-VG

457 ±6.4 (18 ±0.25)

MMA-2502-VG

51 ±1.6 (2 ±0.063)

6.35 dia ±0.15
(0.25 dia ±0.006)

MMA-2504-VG

102 ±3.2 (4 ±0.125)

MMA-2508-VG

203 ±3.2 (8 ±0.125)

MMA-2512-VG

305 ±6.4 (12 ±0.25)

MMA-1804-WL
Temporarily unavailable

102 ±3.2 (4 ±0.125)

4.57 dia +0.05/-0.10 (0.180 dia +0.002/-0.004

HST-1
300 G, 3 kG, 30 kG, 300 kG

±1% to 100 kG

MMA-1808-WL
Temporarily unavailable

203 ±3.2 (8 ±0.125)

MMA-2504-WL
Temporarily unavailable

102 ±3.2 (4 ±0.125)

6.35 dia ±0.15
(0.25 dia ±0.006)

MMA-2536-WL
Temporarily unavailable

914 ±6.4 (36 ±0.25)

*Some ranges unavailable with the Model 425

Note: 15 in flexible probes are no longer available. Please contact your local representative to discuss alternatives if you require a similar product for your application.

Cryogenic axial probes

Operating temperature range: 1.5 K to 300 K

L mm (in)

D mm (in)

A mm (in)

Active area mm (in)

Stem material

Frequency range

Usable full scale ranges

Corrected accuracy (% rdg at 25 °C)

Temp coefficient (max) zero

Temp coefficient (approx) calibration

Contains temp sensor

for Models 475, 455, and 425

300 K	ref
200 K	+0.05%
100 K	-0.04%
80 K	-0.09%
20 K	-0.40%
4 K	-0.70%
1.5 K	-1.05%

HMCA-2560-WN

1524 ±12.7 (60 ±0.50)

6.35 dia ±0.15 (0.25 dia ±0.006)

0.64 ±0.13 (0.025 ±0.005)

Approx 0.76 dia (0.030 dia)

Stainless steel

HST-3
35 G, 350 G, 3.5 kG, 35 kG, 350 kG

±2% to 100 kG

±0.13 G/°C

for Models 460, 450, and 421

MCA-2560-WN

1524 ±12.7 (60 ±0.50)

6.35 dia ±0.15 (0.25 dia ±0.006)

0.64 ±0.13 (0.025 ±0.005)

Approx 0.51 dia (0.020 dia)

Stainless steel

HST-1
300 G, 3 kG, 30 kG, 300 kG

±2% to 100 kG

±0.13 G/°C