SK-H055 Handheld Electrostatic Sensor by Keyence
The SK-H055 from Keyence is a hand-held electrostatic sensor with a built-in charge monitor. It measures ion balance and static elimination time with high accuracy. This tool helps you check static problems fast. It is part of the SK-H series. Use it for maintenance, quality control, and ESD audits in factories.
This sensor offers two charge measurement modes. The high-precision mode works at 25 mm distance with a range of ±2 kV and accuracy of ±10 V. The wide-range mode works at 100 mm distance with a range of ±50 kV and accuracy of ±100 V. It also measures temperature and humidity. The charge monitor checks ion balance and static elimination time from 0 to 99 seconds.
Keyence builds this unit with a Class 1 laser for safe aiming. It runs on two AA alkaline batteries for up to 8 hours. The body uses PC, SUS, PTFE, and PVC for durability. It is active in production. Last verified: 2026-09. Contact us for stock and support.
Technical Specifications
| Brand | Keyence |
| Model | SK-H055 |
| Series | SK-H series |
| Product Type | Hand-held electrostatic sensor |
| Charge Measurement High-Precision Mode | Distance 25 mm, Range ±2 kV, Accuracy ±10 V |
| Charge Measurement Wide-Range Mode | Distance 100 mm, Range ±50 kV, Accuracy ±100 V |
| Display Resolution (Charge) | 0 to 999 V: 1 V; 1.00 to 9.99 kV: 0.01 kV; 10.0 kV and higher: 0.1 kV |
| Sampling Cycle (Charge) | Approx. 1.4 ms |
| Temperature Measurement | Range 0 to +40 °C, Accuracy ±1 °C, Resolution 0.1 °C |
| Humidity Measurement | Range 10 to 85 % RH, Accuracy ±5 % RH, Resolution 1 % RH |
| Charge Monitor Function | Ion balance range ±1 kV; Static elimination time 0 to 99 s; Charge voltage ±1400 V |
| Laser Class | Class 1 Laser Product (IEC 60825-1:2014, FDA CDRH Part 1040.10) |
| Built-in Ports | USB 2.0 Full Speed |
| Protocols | USB |
| Communication Expansion | None |
| Supply Voltage | 2 AA alkaline dry-cell batteries |
| Power Consumption | Not available |
| Operating Time | 8 hours (in charge potential measuring mode) |
| Operating Temperature | 0 to +40 °C (No freezing or condensation) |
| Relative Humidity | 10 to 85 % RH (No condensation; 10 to 60 % RH for SK-H055) |
| Protection Rating | Not available |
| Dimensions (H×W×D) | Not available |
| Weight | Approx. 220 g |
| Material | PC, SUS, PTFE, PVC |
| Lifecycle | Active; official Keyence production status confirmed |
Performance and Installation Guide
The SK-H055 gives fast readings with a 1.4 ms sampling cycle. It measures charge from ±2 kV up to ±50 kV. Use the high-precision mode for close checks at 25 mm. Use the wide-range mode for larger distances at 100 mm. It also reads temperature and humidity. This helps you monitor the environment while testing static.
Installation is simple. Insert two AA alkaline batteries. Press the power button. Point the laser at the target. Keep the distance correct for your mode. The Class 1 laser is safe for eyes. For charge monitor function, set the ion balance range to ±1 kV. The unit measures static elimination time from 0 to 99 seconds.
Debug and maintenance are easy. The display shows clear resolution. No complex setup is needed. Clean the lens with a soft cloth. Check battery level often. Store in a dry place between 0 and +40 °C. Keep humidity below 60 % RH for best results.
Compatibility and Certification
The SK-H055 connects via USB 2.0 Full Speed. It uses USB protocol. No extra communication modules are needed. It works as a standalone tool. It does not require external software for basic use. Certification: Class 1 Laser Product (IEC 60825-1:2014, FDA CDRH Part 1040.10). This meets safety standards for industrial use.
Why Buy From Oiltech Controls?
- More than 15 years of industrial automation spare parts experience.
- We ship worldwide with FedEx, UPS, and DHL.
- Tested industrial surplus and refurbished options available.
- Every unit comes with a 12-month warranty.
- We verify technical details before shipment.
- Support for obsolete control systems and legacy parts.
For inquiries, email us at info@oiltechcontrols.com or message us on WhatsApp at +86 158 8020 0923. We respond fast.
Typical Applications and Diagnostics
Use the SK-H055 in electronics assembly, semiconductor manufacturing, and printing. It checks ionizers and static eliminators. It finds charge buildup on films, boards, and parts. The charge monitor function helps diagnose ion balance issues. It measures static elimination time to confirm performance. This reduces defects and improves yield.
The sensor also measures temperature and humidity. This helps you spot environmental causes of static. The 1.4 ms sampling cycle catches fast changes. The wide range covers many materials. The high-precision mode finds small charges. Use it for routine checks and troubleshooting.
Packaging and Warranty
Package includes: 1 x SK-H055 sensor, 2 x AA alkaline batteries, and a user manual. Shipping via FedEx, UPS, or DHL. All orders include a 12-month warranty from Oiltech Controls Limited. Contact us for bulk orders or spare parts.
FAQ
Q: What is the measuring distance for high-precision mode?
A: 25 mm. Range is ±2 kV. Accuracy is ±10 V.
Q: What is the measuring distance for wide-range mode?
A: 100 mm. Range is ±50 kV. Accuracy is ±100 V.
Q: How long do batteries last?
A: About 8 hours in charge potential measuring mode.
Q: Does it measure temperature and humidity?
A: Yes. Temperature range is 0 to +40 °C. Humidity range is 10 to 85 % RH.
Q: What is the static elimination time range?
A: 0 to 99 seconds. Ion balance range is ±1 kV.
Q: Is this product certified?
A: Yes. It is a Class 1 Laser Product per IEC 60825-1:2014 and FDA CDRH Part 1040.10.
Q: What is the warranty?
A: 12 months from Oiltech Controls Limited.
Q: How do you ship?
A: We use FedEx, UPS, and DHL for global delivery.
Contact us: info@oiltechcontrols.com | WhatsApp: +86 158 8020 0923
Copyright © 2026 Oiltech Controls Limited. All rights reserved.
Original Source: https://www.oiltechcontrols.com/
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