PTH-1XA and RH-1X Hygrometers Specifications: 

PTH-1XA

Color: Dark Gray

Power: One button cell battery (CR2032) (included)

Humidity Range: 5 - 95% RH

Humidity Accuracy: 10 - 90% RH ±3%, all other ranges ±5%

Temperature Range: 0 - 40°C (32 - 104°F)

Temperature Accuracy: ±1°C (±2°F)

Response Time: Typically 80 seconds

Dimensions: 150 (L) x 20 (W) x 15 mm (H) (5.9 x 0.8 x 0.6")

Weight: 62 g (2 oz)

RH-122

Color: Black

Power: One button cell battery (LR44) (included)

Humidity Range: 20 - 90% RH

Humidity Accuracy: ±5%

Temperature Range: -10 - 50°C (14 - 122°F)

Temperature Accuracy: ±1°C (±1.8°F)

Response Time: Typically 80 seconds

Dimensions: 150 (L) x 20 (W) x 15 mm (H) (5.9 x 0.8 x 0.6")

Weight: 47 g (1.5 oz)

RH-1X

Color: Silver and Black

Power: AAA battery (included)

Measurement Range: 5 - 95% RH, -20 - 60°C (-4 - 140°F)

Humidity Accuracy: 30 - 80% RH ±3%, all other ranges ±5%

Operating Temperature Range: 0 - 40°C (32 - 104°F) (humidity <80%)

Temperature Accuracy: ±1°C (±2°F)

Storage Temperature Range: 0 - 60°C (32 - 140°F) (humidity <70%)

Response Time: 30 - 90% absorption time 120 seconds, 90 - 30% absorption time 150 seconds

Dimensions: 14.2 x 160 mm (0.56 x 6.3")

Weight: 50 g (1.8 oz)

PTH-1XA and RH-1X Hygrometers Product Numbers and Descriptions

PTH-1XA: Temperature and Relative Humidity Detector

RH-1X: Temperature and Relative Humidity Pen

Accessories

PH-BATT-3: Replacement battery for RH-122

HHF20-BATT: Replacement battery for PTH-1XA

MN2400: Replacement battery for RH-1X

Note: Comes with battery and user manual.

Note: Spare batteries - RH-122 uses PH-BATT-3, PTH-1XA uses HHF20-BATT, and RH-1X uses MN2400.