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**28** items found

Photon counting head: H12386-01

The H12386 series is a photon counting head device consisting of a metal package photomultiplier tube, along with a high-speed photon counting circuit and a high-voltage power supply circuit. The high voltage supply for photomultiplier tube and the discrimination level are preset to optimum values, allowing photon counting measurement by just connecting a +5 V supply.

Wavelength (Short)

**230 nm**

Wavelength (Long)

**870 nm**

Wavelength (Peak)

**400 nm**

Photon counting head: H12386-110

The H12386 series is a photon counting head device consisting of a metal package photomultiplier tube, along with a high-speed photon counting circuit and a high-voltage power supply circuit. The high voltage supply for photomultiplier tube and the discrimination level are preset to optimum values, allowing photon counting measurement by just connecting a +5 V supply.

Wavelength (Short)

**230 nm**

Wavelength (Long)

**700 nm**

Wavelength (Peak)

**400 nm**

Photon counting head: H12386-210

The H12386 series is a photon counting head device consisting of a metal package photomultiplier tube, along with a high-speed photon counting circuit and a high-voltage power supply circuit. The high voltage supply for photomultiplier tube and the discrimination level are preset to optimum values, allowing photon counting measurement by just connecting a +5 V supply.

Wavelength (Short)

**230 nm**

Wavelength (Long)

**700 nm**

Wavelength (Peak)

**400 nm**

The H12775 is a photon counting head device containing of a 10-mm (1/2") diameter head-on photomultiplier tube, along with a high-speed photon counting circuit and a high-voltage power supply circuit.

Wavelength (Short)

**300 nm**

Wavelength (Long)

**650 nm**

Wavelength (Peak)

**420 nm**

Photon counting head: H7421-40

The H7421 series is a photon counting head device containing a metal package photomultiplier tube having a GaAsP/GaAs photocathode and a thermoelectric cooler. The thermoelectric cooler reduces thermal noise generated from the photocathode which also offers a high quantum efficiency, allowing measurement to be made with a good S/N ratio even at very low light levels.

Wavelength (Short)

**300 nm**

Wavelength (Long)

**720 nm**

Wavelength (Peak)

**580 nm**

Photon counting head: H7421-50

The H7421 series is a photon counting head device containing a metal package photomultiplier tube having a GaAsP/GaAs photocathode and a thermoelectric cooler. The thermoelectric cooler reduces thermal noise generated from the photocathode which also offers a high quantum efficiency, allowing measurement to be made with a good S/N ratio even at very low light levels.

Wavelength (Short)

**380 nm**

Wavelength (Long)

**890 nm**

Wavelength (Peak)

**800 nm**

The H7828 series is a photon counting head device containing a 19 mm (3/4") diameter head-on photomultiplier tube, a high-speed photon counting circuit, and a high-voltage power supply circuit. The high voltage supply for photomultiplier tube and the discrimination level are preset to optimum values, allowing photon counting measurement by just connecting a +5 V supply.

Wavelength (Short)

**300 nm**

Wavelength (Long)

**650 nm**

Wavelength (Peak)

**420 nm**

Photon counting head: H7828-01

The H7828 series is a photon counting head device containing a 19 mm (3/4") diameter head-on photomultiplier tube, a high-speed photon counting circuit, and a high-voltage power supply circuit. The high voltage supply for photomultiplier tube and the discrimination level are preset to optimum values, allowing photon counting measurement by just connecting a +5 V supply.

Wavelength (Short)

**300 nm**

Wavelength (Long)

**850 nm**

Wavelength (Peak)

**380 nm**

The H8259 series is a photon counting head device containing a 28 mm (1-1/8") diameter side-on photomultiplier tube, high-speed photon counting circuit, and a high-voltage power supply circuit. The photomultiplier tube sensitive in the near IR region usually has a large dark count due to thermal noise but high S/N measurements can be obtained since a low-noise photomultiplier tube is selected.

Wavelength (Short)

**185 nm**

Wavelength (Long)

**680 nm**

Wavelength (Peak)

**400 nm**

Photon counting head: H8259-01

The H8259 series is a photon counting head device containing a 28 mm (1-1/8") diameter side-on photomultiplier tube, high-speed photon counting circuit, and a high-voltage power supply circuit. The photomultiplier tube sensitive in the near IR region usually has a large dark count due to thermal noise but high S/N measurements can be obtained since a low-noise photomultiplier tube is selected.

Wavelength (Short)

**185 nm**

Wavelength (Long)

**850 nm**

Wavelength (Peak)

**430 nm**

Photon counting head: H8259-02

The H8259 series is a photon counting head device containing a 28 mm (1-1/8") diameter side-on photomultiplier tube, high-speed photon counting circuit, and a high-voltage power supply circuit. The photomultiplier tube sensitive in the near IR region usually has a large dark count due to thermal noise but high S/N measurements can be obtained since a low-noise photomultiplier tube is selected.

Wavelength (Short)

**185 nm**

Wavelength (Long)

**900 nm**

Wavelength (Peak)

**400 nm**

Photon counting head: H9319-01

The H9319 series photon counting heads are designed to perform photon counting by just connecting to a PC. The H9319 series includes a 25 mm (1") diameter head-on photomultiplier tube, a photon counting circuit, a high-voltage power supply circuit, counter and a microprocessor.

Wavelength (Short)

**300 nm**

Wavelength (Long)

**650 nm**

Wavelength (Peak)

**420 nm**

Photon counting head: H9319-02

The H9319 series photon counting heads are designed to perform photon counting by just connecting to a PC. The H9319 series includes a 25 mm (1") diameter head-on photomultiplier tube, a photon counting circuit, a high-voltage power supply circuit, counter and a microprocessor.

Wavelength (Short)

**300 nm**

Wavelength (Long)

**850 nm**

Wavelength (Peak)

**420 nm**

Photon counting head: H9319-11

The H9319 series photon counting heads are designed to perform photon counting by just connecting to a PC. The H9319 series includes a 25 mm (1") diameter head-on photomultiplier tube, a photon counting circuit, a high-voltage power supply circuit, counter and a microprocessor.

Wavelength (Short)

**300 nm**

Wavelength (Long)

**650 nm**

Wavelength (Peak)

**420 nm**

Photon counting head: H9319-12

Wavelength (Short)

**300 nm**

Wavelength (Long)

**850 nm**

Wavelength (Peak)

**420 nm**

Photon counting head: H10682-01

The H10682 series is a photon counting head device consisting of a metal package photomultiplier tube, along with a high-speed photon counting circuit and a high-voltage power supply circuit. The high voltage supply for photomultiplier tube and the discrimination level are preset to optimum values, allowing photon counting measurement by just connecting a +5 V supply.

Wavelength (Short)

**230 nm**

Wavelength (Long)

**870 nm**

Wavelength (Peak)

**400 nm**

Photon counting head: H10682-110

The H10682 series is a photon counting head device consisting of a metal package photomultiplier tube, along with a high-speed photon counting circuit and a high-voltage power supply circuit. The high voltage supply for photomultiplier tube and the discrimination level are preset to optimum values, allowing photon counting measurement by just connecting a +5 V supply.

Wavelength (Short)

**230 nm**

Wavelength (Long)

**700 nm**

Wavelength (Peak)

**400 nm**

Photon counting head: H10682-210

The H10682 series is a photon counting head device consisting of a metal package photomultiplier tube, along with a high-speed photon counting circuit and a high-voltage power supply circuit. The high voltage supply for photomultiplier tube and the discrimination level are preset to optimum values, allowing photon counting measurement by just connecting a +5 V supply.

Wavelength (Short)

**230 nm**

Wavelength (Long)

**700 nm**

Wavelength (Peak)

**400 nm**

The H11123 is a photon counting head device consisting of a 28 mm (1-1/8") diameter head-on photomultiplier tube, a high-speed photon counting circuit, and a high-voltage power supply circuit. The high voltage power supply for photomultiplier tube and the discrimination level are preset to optimum values, allowing photon counting measurement by just connecting a +5 V supply.

Wavelength (Short)

**300 nm**

Wavelength (Long)

**650 nm**

Wavelength (Peak)

**420 nm**

Photon counting head: H11870-01

The H11870 series is a wide sensitive area photon counting head device containing a 25 mm (1") diameter head-on photomultiplier tube, a high-voltage power supply circuit and a photon counting circuit.

Wavelength (Short)

**300 nm**

Wavelength (Long)

**650 nm**

Wavelength (Peak)

**375 nm**

Photon counting head: H11870-02

The H11870 series is a wide sensitive area photon counting head device containing a 25 mm (1") diameter head-on photomultiplier tube, a high-voltage power supply circuit and a photon counting circuit.

Wavelength (Short)

**300 nm**

Wavelength (Long)

**650 nm**

Wavelength (Peak)

**420 nm**

Photon counting head: H11870-03

The H11870 series is a wide sensitive area photon counting head device containing a 25 mm (1") diameter head-on photomultiplier tube, a high-voltage power supply circuit and a photon counting circuit.

Wavelength (Short)

**300 nm**

Wavelength (Long)

**850 nm**

Wavelength (Peak)

**420 nm**

Photon counting head: H11890-01

The H11890 series is a compact photon counting head consisting of a metal package photomultiplier tube along with a high speed photon counting circuit and a high-voltage power supply unit.

Wavelength (Short)

**230 nm**

Wavelength (Long)

**870 nm**

Wavelength (Peak)

**400 nm**

Photon counting head: H11890-110

The H11890 series is a compact photon counting head consisting of a metal package photomultiplier tube along with a high speed photon counting circuit and a high-voltage power supply unit.

Wavelength (Short)

**230 nm**

Wavelength (Long)

**700 nm**

Wavelength (Peak)

**400 nm**

Photon counting head: H11890-210

The H11890 series is a compact photon counting head consisting of a metal package photomultiplier tube along with a high speed photon counting circuit and a high-voltage power supply unit.

Wavelength (Short)

**230 nm**

Wavelength (Long)

**700 nm**

Wavelength (Peak)

**400 nm**

Photon counting head: H13467-01

The H13467 series is a wide sensitive area photon counting head device containing a 25 mm (1") diameter head-on photomultiplier tube, a high-voltage power supply circuit and a photon counting circuit.

Wavelength (Short)

**300 nm**

Wavelength (Long)

**650 nm**

Wavelength (Peak)

**375 nm**

Photon counting head: H13467-02

The H13467 series is a wide sensitive area photon counting head device containing a 25 mm (1") diameter head-on photomultiplier tube, a high-voltage power supply circuit and a photon counting circuit.

Wavelength (Short)

**300 nm**

Wavelength (Long)

**650 nm**

Wavelength (Peak)

**420 nm**

Photon counting head: H13467-03

The H13467 series is a wide sensitive area photon counting head device containing a 25 mm (1") diameter head-on photomultiplier tube, a high-voltage power supply circuit and a photon counting circuit.

Wavelength (Short)

**300 nm**

Wavelength (Long)

**850 nm**

Wavelength (Peak)

**420 nm**

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