主要測試AC/DC 泄漏電流，設計符合的UL、IEC 和ANSI 規格。
Simpson 228 查出當前AC 和DC 漏出并且模仿人的反應在三個不同水平 -- 反應，放棄，以及灼傷危險。 每個Simpson 228 具有彈簧夾、指南和電池以及測試筆。查出危險AC & DC 泄漏電流在電子或電子設備導 電性表面 ◆設計遇見新的IEC、ANSI 和UL 指南
◆反應，放棄和無重負的燒傷危險網絡測量
◆電池操作為輕便
◆另可按需求配備專業的測試盒子和測試線 ◆ 配備說明書；
◆ 國內一級代理，值得信賴
| GENERAL | Reaction Response Network | Let-Go Response Network | Unweighted Burn Hazard Response Network |
| Equivalent network component values: | 符合標準：IEC 990 (excluding fuse) |
| Equivalent measuring instrument load: | 1 MΩ- 10pF | 1 MΩ- 62 pF | 1 MΩ- 1 pF |
| Ranges: | 0.3, 1, 3, 10 M.I.U. | 0.3, 1, 3, 10 M.I.U. | 0-100 mA RMS |
| Current accuracy: | ±2% F.S. @ 60 Hz |
| Meter measurement method: | True RMS |
| Meter frequency response: | (Relative to ANSI C101-1992 or UL-1459 2nd edition) |
| DC to 1 Hz | Pointer shall track within 5% of peak |
| 2Hz to 19Hz (Accuracy not supported) | |
| 20 Hz to 200 KHz | ±2% F.S. | ±2.5% of F.S. | ±2% F.S. |
| 200 KHz to 1 MHz | ±2% F.S. | ±2.5% F.S. | ±5% F.S. |
| Output sensitivity: | Full scale meter indication equals 1V RMS (Measured with a 1 MΩ- 12 pF load) |
| Output accuracy: | ±2% of reading @ 60 Hz |
| Output frequency response: | (Relative to ANSI C101-1992 or UL-1459 2nd edition) |
| DC to 50Hz | ±2% of reading |
| 50 Hz to 100 KHz | ±2.5% of reading | ±2% /-3% of reading | ±2% of reading |
| 100 kHz to 1 MHz | ±5% of reading |
| Voltmeter range: | 0-300 V (AC or DC) |
| Voltmeter accuracy: DC to 1 Hz | Pointer shall track within 5% of peak |
| 2Hz to 19Hz (Accuracy not supported) | |
| 20 Hz to 1KHz | ±3% F.S. @ 60 Hz (Add ±1% for every additional 100Hz) |
| Voltmeter frequency response: | DC to 1 KHz |
| Power requirements: | Power requirements: (2) 9V (NEDA 1604A) batteries |
| Physical: | 7" x 5.25" x 3.125", 2-1/2 lbs (1.4kg), ABS plastic,fusedinput |
| Environmental: | 27°C ±2° C, 70% non condensing relative humidity. Outside thisrangederate by 10% per °C |
| Maximum operating range ： | 0° to 40° C |
