美国Health Physics Instruments (HPI),专业研发生产各种测量放射线Alpha, gamma , X线，放射源如中子，离子等的仪器设备。1987年FWT公司收购了HPI。 目前HPI在中国的销售份额逐年扩大。产品广泛用于物理科研、环境监测、卫生防疫、辐照生产等行业。
主要型号有：
| health physics instruments hpi | 7530 1 x 1 NaI Scintillation Detector |
| 1010 Tissue E Survey Meter | MCA1 7010 +_ 7014 |
| 1010-B Beta Chamber Add | MCA2 7010 + 7014 + 7530 _7010 |
| 1010-E Reset Push Switch Add | REM500 Neutron Survey Meter |
| 1030 Pulse Ion Chamber Survey Meter | REM500-CM244Curium Source Option (check for availability) |
| 2030 Low Energy Area Monitor | REM500-MCA Serial Option |
| 2080 Pulse Neutron Survey Meter | REM500-ND Rem 500 W/o Detector |
| 4020 Shadow Contamination Survey Meter | REM500-RM1 Remote Detector |
| 4022 Signal Gamma Survey Meter | health physics instruments |
| 4080 Canary II Dosimeter | Rate Meter Calibration |
| 4080F Canary II Dosimeter, of 10 | Before and After |
| 4083 Canary III Dosimeter | Additional Probe |
| 4083F Canary III Dosimeter, of 10 | Extra Complicated |
| 4083F Canary III Dosimeter, of 100 | Dosimeters |
| 4084 Canary IV Dosimeter | Before and After for Dosimeters |
| 408XB Canary Batteries 10 Pack (BR2325) | Neutron Rate Meters |
| 5000 Cypher Digital Survey Meter | Before and After Neutron |
| 5000-SS Shoulder Strap for Cypher | Neutron Dosimeters |
| 5085 Meridian Neutron Survey Meter | Leak Test Analysis 1st Wipe |
| 5085-AC 100/220V 50/60 HZ Power Supply Option | Refill 1010 Detector |
| 5085-He3 Helium 3 detector installed in place of Bf3 | Rebuild 1010 Detector |
| 5085-XTM Extended Range Moderator to 2 GeV | Replace 1010 Detector |
| 5500 Pancake Probe | Refill REM 500 Detector |
| 5505 Pancake Probe W/Fine Cu/Be Screen | Rebuild REM 500 Detector |
| 5530 Gamma Scintillator 1 x 1 | Replace REM 500 Detector |
| 6010 Large Area Readout | Pancake GM Tube |
| 6012 Local Readout/Controller | 4080 Switch |
| 6014 Pulse Link Receiver | 4083 Switch |
| 6020 Low Level GM Detector (Pulse Link) | health physics instruments |
| 6025 Digital Controller/Readout | BNC-BNC BNC to BNC Straight 1 M |
| 6030 Low Level Ion Chamber Detector | BNC-C-1M BNC to C Straight 1 M |
| 6031 Ion Chamber Detector (Pulse Link) | BNC-MHV-1M BNC to MHV Straight 1 M |
| 6035 High Level Ion Chamber Detector A and B | BNC-SHV-1M BNC to SHV Straight 1 M |
| 6060 Neutron REM detector, Extended Range | TIE1 Hook and Loop Cable Ties |
| 6060-He3 Helium 3 detector installed in place of Bf3 | MHV-MHV MHV to MHV straight 1 M |
| 6065 Neutron REM detector, Anderson Braun | Note: Longer cables available. Please call for |
| 6065-He3 Helium 3 detector installed in place of Bf3 | MHV-Cable MHV on 2nd end of cable |
| /6020 Breakout Box | SHV-Cable SHV on 2nd end of cable |
| health physics instruments hpi | C-Cable C on 2nd end of cable |
| 7010 Rainbow MCA | MHV-Mount Mounting MHV in place of BNC |
| 7014 Preamp/HV for Rainbow Model 7010 | SHV-Mount Mounting SHV in place of BNC |
| 7021 Shoulder Strap for 7010 | C-Mount Mounting C in place of BNC |
| 7100 BNC/BNC Cable for Rainbow | health physics instruments |