You can download our product manuals in P.D.F format here.

Production Line Use: Constant Current Output
GF-30ac; 30A, 0.1 ohm Pass/Fail Point $995 Buy Now
GF-40ac; 40A, 0.1 ohm Pass/Fail Point $1095 Buy Now
| Laboratory Use: Constant Current Output |
GFM-40ac 10-40A, metered, dual range $1695 Buy Now |
| Laboratory Use: Manual Output |
GF-30AC ![]() |
GF-30AC: 10-25A fixed output production line ground bond tester The GF-30ac is a production line workhorse. This unit delivers a
constant AC current while checking impedence. More… |
GF-40AC |
GF-40AC: 10-40A fixed output production line ground bond tester The GF-40ac is designed to meet the latest requirements of UL 60950 third addition for Protective Earthing and Protective Bonding Conductors where up to 40 amps may be required. More… |
GFM-30AC |
GFM-30AC: 5-30 Amp AC adjustable ground bond tester w/ meter The GFM-30AC is designed for product safety and development
engineers. The front panel allows adjustment of the AC current up to 30
amps. More… |
GFM-40AC |
GFM-40AC: 10-40 Amp AC adjustable ground bond tester w/meter The GFM-40AC is designed to meet the latest requirements of UL 60950 third addition for Protective Earthing and Protective Bonding Conductors where up to 40 amps may be required. More… |
GFM-200A |
GFM-200A: up to 200A adjustable AC ground bond tester w/meters The GF-200A is designed for testing where very high currents are needed to judge connection resistance. The front panel allows adjustment of the AC current up to 200 amps. More… |
GFM-300A |
GFM-300A: up to 300A AC adjustable w/meters The GFM-300A is designed for testing where very high currents are needed to judge connection resistance. The front panel allows adjustment of the AC current up to 300 amps. More… |