GPR-7500 (A)IS Online H2S Analyzer
Online ppm hydrogen sulphide analyzer with electrochemical sensor, certified for flammable gas streams.

Portable gas analyser for anaerobic digestion: % CH4, CO2 and O2, with optional H2S, H2, CO and NH3.
The Geotech BIOGAS 5000 is an easy to use, calibrate and configure portable gas analyser that enables consistent collection of data for improved analysis and accurate reporting, while helping to check that the digester process is running efficiently. It measures % CH4, CO2 and O2 as standard and can monitor up to 6 gases.
CH4 and CO2 are measured by a dual-wavelength infrared sensor with reference channel; O2 and optional H2S, H2, CO and NH3 by internal electrochemical cells. An internal pump draws the sample from the digester sample point.
| CH4 | 0–100 % (±0.5 % vol 0–70 %; ±1.5 % vol 70–100 %) |
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| CO2 | 0–100 % (±0.5 % vol 0–60 %; ±1.5 % vol 60–100 %) |
| O2 | 0–25 % (±1.0 % vol) |
| Ranges | H2S 0–50 ppm up to 0–10,000 ppm; CO 0–500/1,000/2,000 ppm (H2-compensated option); NH3 0–1,000 ppm; H2 0–1,000 ppm |
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| Response T90 | CH4/CO2 ≤ 10 s; O2 ≤ 20 s; H2S/CO ≤ 30 s; NH3/H2 ≤ 90 s |
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| Battery | Rechargeable NiMH pack, typical use 8 hours |
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| Charger | Mains 100–240 V, approx. 4 h charge |
| Available | H2S to 0–5,000 or 0–10,000 ppm; H2, NH3; Gas Analyser Manager software; ATEX anemometer / Pitot tubes; ATEX temperature probe; Bluetooth |
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All Tetracon-supplied instruments carry the original manufacturer warranty (typically 12–24 months) plus first-line local support from our Islamabad service centre.
Yes. Our manufacturer-trained engineers offer on-site installation, commissioning and startup training anywhere in Pakistan.
Common spares are held in local stock. Calibration is available at our lab or on-site with NIST-traceable reference standards.
Stocked items ship within 3–5 working days; engineered configurations typically 6–10 weeks depending on manufacturer schedule.
Complete the form below and one of our engineers will respond within 1 working day with pricing and lead time. Prefer email? Contact our sales team.