Wavelength Range: 325–1000 nm
Wavelength Accuracy: ±2 nm
Spectral Bandwidth: 4 nm
Transmittance Range: 0.0–199.9 %T
Absorbance Range: −0.301–1.999 A
Stray Light: ≤0.3 %T at 360 nm
Transmittance Accuracy: ±0.5 %
 

Wavelength Range: 340–1000 nm
Bandwidth: 5 nm
Wavelength Accuracy: ±3 nm
Transmittance Range: 0.0–199.9 %T
Absorbance Range: −0.301 to 1.999 A
Transmittance Accuracy: ±1.0 %
Stray Light: ≤1 %T @ 360 nm
 

Wavelength Range: 325–1000 nm
Transmission Ratio Range: 0.0–199.9%T
Absorbance Range: -0.301 to 1.999 A
Wavelength Accuracy: ±2 nm
Spectrum Bandwidth: 4 nm
Measure Precision: 0.5%T with low stray light (≤0.3%T at 360nm)
Supports direct input of K, B values and stored equation testing
 

Wavelength Range: 325–1000 nm
Transmission Ratio Range: 0.0–125.0%T
Absorbance Range: -0.097 to 2.5 A
Wavelength Accuracy: ±1 nm with excellent repeatability and stability
Spectrum Bandwidth: 4 nm
Features automatic 0%T & 100%T self-regulation and concentration direct-reading (GOTO λ)
Optional printer support for scheduled printing
 

Wavelength Range: 325–1000 nm, covering visible and near-infrared spectrum
Transmission Ratio Range: 0.0–125.0%T
Absorbance Range: -0.097 to 2.5 A
Wavelength Accuracy: ±1 nm with high repeatability and stability
Spectrum Bandwidth: 4 nm for precise spectral resolution
Features concentration direct-reading (GOTO λ) and automatic 0%T & 100%T regulation
Supports on-line software for quantitative and qualitative spectral analysis
 

Wavelength range: 325-1000 nm, suitable for visible light measurements
Spectral bandwidth: 4 nm, with ±2.0 nm wavelength accuracy
Transmittance accuracy: ±0.5% T, stray light ≤0.05% T (340nm NaNo2)
Manual wavelength adjustment with 4-digit LED digital display
Metering modes: Transmittance, absorbance, concentration, energy
Light source: Imported tungsten lamp; Detector: Imported silicon photodiode
Dimensions: 360×280×190 mm; Weight: 9 kg
 

Wavelength range: 325-1000 nm, covering visible and near-infrared spectrum
Spectral bandwidth: 2 nm; Wavelength accuracy: ±1.0 nm
Transmittance accuracy: ±0.5% T; Stray light: ≤0.05% T (340 nm NaNo2)
Measurement modes: Transmittance, absorbance, concentration, energy
Display: 128×64 LED digital display with automatic 0 and 100% adjustment
Light source: Imported tungsten lamp; Detector: Imported silicon photodiode
Connectivity: USB interface and parallel printer port; PC software control optional
 

Wavelength coverage: 325-1000 nm with automatic wavelength adjustment
Spectral bandwidth options: 4nm (PV-1300NPC), 2nm (PV-1500NPC)
Transmittance accuracy: ±0.3% T; stray light ≤0.05% T (340nm NaNo2)
Large 128×64 bit LCD display with multiple data and curve storage
Measurement modes: transmittance, absorbance, concentration, energy
Equipped with USB port and universal parallel printing interface
Dimensions: 480×350×220mm; Net weight: 11 kg
 

· Model: PV1000 / PV1100
 
· Optical system:Single Beam,Grating1200lines/mm
· Wavelength range:340-1020 nm, 330-1020 nm
· Wavelength accuracy:±3nm
· Spectral bandwidth:6 nm, 5 nm
· Wavelength repeatability:≤1nm
· Scattered light:0.5%T，0.3%T
· Data output:RS232
· PC software available: No

· Model: P721
 
· Optical system:Achromatic (1200/mm grating)
· Wavelength range:320-1020nm
· Wavelength accuracy:±2nm
· Spectral bandwidth:6nm
· Wavelength repeatability:≤1nm
· Scattered light:≤0.3%T@360nm
· Data output:RS232（Optional）
· PC software available: No